Damjan Pelc

EDUCATION

2011, Master's degree, physics
2017, PhD, experimental condensed matter physics

RESEARCH, TEACHING, or OTHER INTERESTS

Condensed Matter Physics, Materials Science, Instrumentation

Scopus Publications

Electronic spin susceptibility in metallic strontium titanate
A. Najev, N. Somun, M. Spaić, I. Khayr, M. Greven, A. Klein, M. N. Gastiasoro, and D. Pelc
Springer Science and Business Media LLC



Diffuse scattering from correlated electron systems
Raymond Osborn, Damjan Pelc, Matthew J. Krogstad, Stephan Rosenkranz, and Martin Greven
American Association for the Advancement of Science (AAAS)
The role of inhomegeneity in determining the properties of correlated electron systems is poorly understood because of the dearth of structural probes of disorder at the nanoscale. Advances in both neutron and x-ray scattering instrumentation now allow comprehensive measurements of diffuse scattering in single crystals over large volumes of reciprocal space, enabling structural correlations to be characterized over a range of length scales from 5 to 200 angstroms or more. When combined with new analysis tools, such as three-dimensional difference pair-distribution functions, these advanced capabilities have produced fresh insights into the interplay of structural fluctuations and electronic properties in a broad range of correlated electron materials. This review describes recent investigations that have demonstrated the importance of understanding structural inhomogeneity pertaining to phenomena as diverse as superconductivity, charge density wave modulations, metal-insulator transitions, and multipolar interactions.


Nanoscale structural correlations in a model cuprate superconductor
Zachary W. Anderson, Marin Spaić, Nikolaos Biniskos, Liam Thompson, Biqiong Yu, Jack Zwettler, Yaohua Liu, Feng Ye, Garrett E. Granroth, Matthew Krogstad,et al.
American Physical Society (APS)
Understanding the extent and role of inhomogeneity is a pivotal challenge in the physics of cuprate superconductors. While it is known that structural and electronic inhomogeneity is prevalent in the cuprates, it has proven difficult to disentangle compound-specific features from universally relevant effects. Here we combine advanced neutron and x-ray diffuse scattering with numerical modeling to obtain insight into bulk structural correlations in HgBa$_2$CuO$_{4+\\delta}$. This cuprate exhibits a high optimal transition temperature of nearly 100 K, pristine charge-transport behavior, and a simple average crystal structure without long-range structural instabilities, and is therefore uniquely suited for investigations of intrinsic inhomogeneity. We uncover diffuse reciprocal-space patterns that correspond to prominent nanoscale correlations of atomic displacements perpendicular to the CuO$_2$ planes. The real-space nature of the correlations is revealed through three-dimensional pair distribution function analysis and complementary numerical refinement. We find that relative displacements of ionic and CuO$_2$ layers play a crucial role, and that the structural inhomogeneity is not directly caused by the presence of conventional point defects. The observed correlations are therefore intrinsic to HgBa$_2$CuO$_{4+\\delta}$, and thus likely important for the physics of cuprates more broadly. It is possible that the structural correlations are closely related to the unusual superconducting correlations and Mott-localization in these complex oxides. As advances in scattering techniques yield increasingly comprehensive data, the experimental and analysis tools developed here for large volumes of diffuse scattering data can be expected to aid future investigations of a wide range of materials.


Structural properties of plastically deformed SrTiO3 and KTaO3
Issam Khayr, Sajna Hameed, Jakov Budić, Xing He, Richard Spieker, Ana Najev, Zinan Zhao, Li Yue, Matthew Krogstad, Feng Ye,et al.
American Physical Society (APS)



Multiferroicity in plastically deformed SrTiO<inf>3</inf>
Xi Wang, Anirban Kundu, Bochao Xu, Sajna Hameed, Nadav Rothem, Shai Rabkin, Luka Rogić, Liam Thompson, Alexander McLeod, Martin Greven,et al.
Springer Science and Business Media LLC



Magnetic resonance study of rare-earth titanates
A. Najev, S. Hameed, A. Alfonsov, J. Joe, V. Kataev, M. Greven, M. Požek, and D. Pelc
American Physical Society (APS)
We present a nuclear magnetic resonance (NMR) and electron spin resonance (ESR) study of rare-earth titanates derived from the spin-1/2 Mott insulator YTiO$_3$. Measurements of single-crystalline samples of (Y,Ca,La)TiO$_3$ in a wide range of isovalent substitution (La) and hole doping (Ca) reveal several unusual features in the paramagnetic state of these materials. $^{89}$Y NMR demonstrates a clear discrepancy between the static and dynamic local magnetic susceptibilities, with deviations from Curie-Weiss behavior far above the Curie temperature $T_C$. No significant changes are observed close to $T_C$, but a suppression of fluctuations is detected in the NMR spin-lattice relaxation time at temperatures of about $3\\times T_C$. Additionally, the nuclear spin-spin relaxation rate shows an unusual peak in dependence on temperature for all samples. ESR of the unpaired Ti electron shows broad resonance lines at all temperatures and substitution/doping levels, which we find to be caused by short electronic spin-lattice relaxation times. We model the relaxation as an Orbach process that involves a low-lying electronic excited state, which enables the determination of the excited-state gap from the temperature dependence of the ESR linewidths. We ascribe the small gap to Jahn-Teller splitting of the two lower Ti $t_{2g}$ orbitals. The value of the gap closely follows $T_C$ and is consistent with the temperatures at which deviations from Curie-Weiss fluctuations are observed in NMR. These results provide insight into the interplay between orbital and spin degrees of freedom in rare-earth titanates and indicate that full orbital degeneracy lifting is associated with ferromagnetic order.


Local inversion-symmetry breaking in a bismuthate high-T <inf>c</inf> superconductor
S. Griffitt, M. Spaić, J. Joe, Z. W. Anderson, D. Zhai, M. J. Krogstad, R. Osborn, D. Pelc, and M. Greven
Springer Science and Business Media LLC
AbstractThe doped perovskite BaBiO3 exhibits a maximum superconducting transition temperature (Tc) of 34 K and was the first high-Tc oxide to be discovered, yet pivotal questions regarding the nature of both the metallic and superconducting states remain unresolved. Although it is generally thought that superconductivity in the bismuthates is of the conventional s-wave type, the pairing mechanism is still debated, with strong electron-phonon coupling and bismuth valence or bond disproportionation possibly playing a role. Here we use diffuse x-ray scattering and Monte Carlo modeling to study the local structure of Ba1-xKxBiO3 across its insulator-metal boundary. We find no evidence for either long- or short-range disproportionation, which resolves a major conundrum, as disproportionation and the related polaronic effects are likely not relevant for the metallic and superconducting states. Instead, we uncover nanoscale structural correlations that break inversion symmetry, with far-reaching implications for the electronic physics. This unexpected finding furthermore establishes that the bismuthates belong to the broader classes of materials with hidden spin-orbit coupling and a tendency towards inversion-breaking displacements.


Unconventional short-range structural fluctuations in cuprate superconductors
D. Pelc, R. J. Spieker, Z. W. Anderson, M. J. Krogstad, N. Biniskos, N. G. Bielinski, B. Yu, T. Sasagawa, L. Chauviere, P. Dosanjh,et al.
Springer Science and Business Media LLC
AbstractThe interplay between structural and electronic degrees of freedom in complex materials is the subject of extensive debate in physics and materials science. Particularly interesting questions pertain to the nature and extent of pre-transitional short-range order in diverse systems ranging from shape-memory alloys to unconventional superconductors, and how this microstructure affects macroscopic properties. Here we use neutron and X-ray diffuse scattering to uncover universal structural fluctuations in La2-xSrxCuO4 and Tl2Ba2CuO6+δ, two cuprate superconductors with distinct point disorder effects and with optimal superconducting transition temperatures that differ by more than a factor of two. The fluctuations are present in wide doping and temperature ranges, including compositions that maintain high average structural symmetry, and they exhibit unusual, yet simple scaling behaviour. The scaling regime is robust and universal, similar to the well-known critical fluctuations close to second-order phase transitions, but with a distinctly different physical origin. We relate this behaviour to pre-transitional phenomena in a broad class of systems with structural and magnetic transitions, and propose an explanation based on rare structural fluctuations caused by intrinsic nanoscale inhomogeneity. We also uncover parallels with superconducting fluctuations, which indicates that the underlying inhomogeneity plays an important role in cuprate physics.


Electrochemical mechanism of ionic-liquid gating in antiferromagnetic Mott-insulating NiS2 single crystals
Sajna Hameed, Bryan Voigt, John Dewey, William Moore, Damjan Pelc, Bhaskar Das, Sami El-Khatib, Javier Garcia-Barriocanal, Bing Luo, Nick Seaton,et al.
American Physical Society (APS)



Uniaxial Strain Control of Bulk Ferromagnetism in Rare-Earth Titanates
A. Najev, S. Hameed, D. Gautreau, Z. Wang, J. Joe, M. Požek, T. Birol, R. M. Fernandes, M. Greven, and D. Pelc
American Physical Society (APS)
The perovskite rare-earth titanates are model Mott insulators with magnetic ground states that are very sensitive to structural distortions. These distortions couple strongly to the orbital degrees of freedom and, in principle, it should be possible to tune the superexchange and the magnetic transition with strain. We investigate the representative system (Y,La,Ca)TiO_{3}, which exhibits low crystallographic symmetry and no structural instabilities. From magnetic susceptibility measurements of the Curie temperature, we demonstrate direct, reversible, and continuous control of ferromagnetism by influencing the TiO_{6} octahedral tilts and rotations with uniaxial strain. The relative change in T_{C} as a function of strain is well described by ab initio calculations, which provides detailed understanding of the complex interactions among structural, orbital, and magnetic properties in rare-earth titanates. The demonstrated manipulation of octahedral distortions opens up far-reaching possibilities for investigations of electron-lattice coupling, competing ground states, and magnetic quantum phase transitions in a wide range of quantum materials.


Enhanced superconductivity and ferroelectric quantum criticality in plastically deformed strontium titanate
S. Hameed, D. Pelc, Z. W. Anderson, A. Klein, R. J. Spieker, L. Yue, B. Das, J. Ramberger, M. Lukas, Y. Liu,et al.
Springer Science and Business Media LLC



Phenomenological model of the third-harmonic magnetic response due to superconducting fluctuations: Application to Sr2RuO4
Fei Chen, Damjan Pelc, Martin Greven, and Rafael M. Fernandes
American Physical Society (APS)
We employ the phenomenological Lawrence-Doniach model to compute the contributions of the superconducting fluctuations to the third-harmonic magnetic response, denoted here by M3, which can be measured in a precise way using ac magnetic fields and lock-in techniques. We show that, in an intermediate temperature regime, this quantity behaves as the third-order nonlinear susceptibility, which shows a power-law dependence with the reduced temperature = T−Tc Tc as −5/2. Very close to Tc, however, M3 saturates due to the nonzero amplitude of the ac field. We compare our theoretical results with experimental data for three conventional superconductors – lead, niobium, and vanadium – and for the unconventional superconductor Sr2RuO4 (SRO). We find good agreement between theory and experiment for the elemental superconductors, although the theoretical values for the critical field systematically deviate from the experimental ones. In the case of SRO, however, the phenomenological model completely fails to describe the data, as the third-harmonic response remains sizable over a much wider reduced temperature range compared to Pb, Nb, and V. We show that an inhomogeneous distribution of Tc across the sample can partially account for this discrepancy, since regions with a locally higher Tc contribute to the fluctuation M3 significantly more than regions with the “nominal” Tc of the clean system. However, the exponential temperature dependence of M3 first reported in Ref. [D. Pelc et. al., Nature Comm. 10, 2729 (2019)] is not captured by the model with inhomogeneity. We conclude that, while inhomogeneity is an important ingredient to understand the superconducting fluctuations of SRO and other perovskite superconductors, additional effects may be at play, such as non-Gaussian fluctuations or rare-region effects.


Resistivity phase diagram of cuprates revisited
D. Pelc, M. J. Veit, C. J. Dorow, Y. Ge, N. Barišić, and M. Greven
American Physical Society (APS)
The phase diagram of the cuprate superconductors has posed a formidable scientific challenge for more than three decades. This challenge is perhaps be


Universal superconducting precursor in three classes of unconventional superconductors
D. Pelc, Z. Anderson, B. Yu, C. Leighton, and M. Greven
Springer Science and Business Media LLC
AbstractA pivotal challenge posed by unconventional superconductors is to unravel how superconductivity emerges upon cooling from the generally complex normal state. Here, we use nonlinear magnetic response, a probe that is uniquely sensitive to the superconducting precursor, to uncover remarkable universal behaviour in three distinct classes of oxide superconductors: strontium titanate, strontium ruthenate, and the cuprate high-Tc materials. We find unusual exponential temperature dependence of the diamagnetic response above the transition temperature Tc, with a characteristic temperature scale that strongly varies with Tc. We correlate this scale with the sensitivity of Tc to local stress and show that it is influenced by intentionally-induced structural disorder. The universal behaviour is therefore caused by intrinsic, self-organized structural inhomogeneity, inherent to the oxides’ perovskite-based structure. The prevalence of such inhomogeneity has far-reaching implications for the interpretation of electronic properties of perovskite-related oxides in general.


Universal precursor of superconductivity in the cuprates
G. Yu, D.-D. Xia, D. Pelc, R.-H. He, N.-H. Kaneko, T. Sasagawa, Y. Li, X. Zhao, N. Barišić, A. Shekhter,et al.
American Physical Society (APS)
Using torque magnetometry, we reveal remarkably simple universal behavior of the superconducting (SC) precursor in the cuprates by tracking the nonlin


Unusual behavior of cuprates explained by heterogeneous charge localization
D. Pelc, P. Popčević, M. Požek, M. Greven, and N. Barišić
American Association for the Advancement of Science (AAAS)
A phenomenological model comprehensively captures the defining features of the cuprate high-temperature superconductors.


Emergence of superconductivity in the cuprates via a universal percolation process
Damjan Pelc, Marija Vučković, Mihael S. Grbić, Miroslav Požek, Guichuan Yu, Takao Sasagawa, Martin Greven, and Neven Barišić
Springer Science and Business Media LLC
AbstractA pivotal step toward understanding unconventional superconductors would be to decipher how superconductivity emerges from the unusual normal state. In the cuprates, traces of superconducting pairing appear above the macroscopic transition temperature Tc, yet extensive investigation has led to disparate conclusions. The main difficulty has been to separate superconducting contributions from complex normal-state behaviour. Here we avoid this problem by measuring nonlinear conductivity, an observable that is zero in the normal state. We uncover for several representative cuprates that the nonlinear conductivity vanishes exponentially above Tc, both with temperature and magnetic field, and exhibits temperature-scaling characterized by a universal scale Ξ0. Attempts to model the response with standard Ginzburg-Landau theory are systematically unsuccessful. Instead, our findings are captured by a simple percolation model that also explains other properties of the cuprates. We thus resolve a long-standing conundrum by showing that the superconducting precursor in the cuprates is strongly affected by intrinsic inhomogeneity.


Percolative nature of the direct-current paraconductivity in cuprate superconductors
Petar Popčević, Damjan Pelc, Yang Tang, Kristijan Velebit, Zachary Anderson, Vikram Nagarajan, Guichuan Yu, Miroslav Požek, Neven Barišić, and Martin Greven
Springer Science and Business Media LLC
AbstractDespite extraordinary scientific efforts over the past three decades, the cuprate high-temperature superconductors continue to pose formidable challenges. A pivotal problem, essential for understanding both the normal and superconducting states, is to clarify the nature of the superconducting pre-pairing above the bulk transition temperature Tc. Different experimental probes have given conflicting results, in part due to difficulties in discerning the superconducting response from the complex normal-state behavior. Moreover, it has proven challenging to separate common properties of the cuprates from compound-specific idiosyncrasies. Here we investigate the paraconductivity—the superconducting contribution to the direct-current (dc) conductivity—of the simple-tetragonal model cuprate material HgBa2CuO4+δ. We are able to separate the superconducting and normal-state responses by taking advantage of the Fermi-liquid nature of the normal state in underdoped HgBa2CuO4+δ; the robust and simple quadratic temperature-dependence of the normal-state resistivity enables us to extract the paraconductivity above the macroscopic Tc with great accuracy. We find that the paraconductivity exhibits unusual exponential temperature dependence, and that it can be quantitatively explained by a simple superconducting percolation model. Consequently, the emergence of superconductivity in this model system is dominated by the underlying intrinsic gap inhomogeneity. Motivated by these insights, we reanalyze published results for two other cuprates and find exponential behavior as well, with nearly the same characteristic temperature scale. The universal intrinsic gap inhomogeneity is not only essential for understanding the supercoducting precursor, but will also have to be taken into account in the analysis of other bulk measurements of the cuprates.


Cu nuclear magnetic resonance study of charge and spin stripe order in La1.875Ba0.125CuO4
D. Pelc, H.-J. Grafe, G. D. Gu, and M. Požek
American Physical Society (APS)
In this paper, we present a Cu nuclear magnetic/quadrupole resonance study of the charge stripe ordered phase of LBCO, with detection of previously unobserved (“wiped-out”) signal. We show that spin-spin and spin-lattice relaxation rates are strongly enhanced in the charge ordered phase, explaining the apparent signal decrease in earlier investigations. The enhancement is caused by magnetic, rather than charge fluctuations, conclusively confirming the long-suspected assumption that spin fluctuations are responsible for the wipeout effect. Observation of the full Cu signal enables insight into the spin and charge dynamics of the stripe-ordered phase, and measurements in external magnetic fields provide information on the nature and suppression of spin fluctuations associated with charge order. Lastly, we find glassy spin dynamics, in agreement with previous work, and incommensurate static charge order with charge modulation amplitude similar to other cuprate compounds, suggesting that the amplitude of charge stripes is universal in the cuprates.


Unconventional charge order in a co-doped high-T<inf>c</inf> superconductor
D. Pelc, M. Vučković, H. -J. Grafe, S. -H. Baek, and M. Požek
Springer Science and Business Media LLC
AbstractCharge-stripe order has recently been established as an important aspect of cuprate high-Tc superconductors. However, owing to the complex interplay between competing phases and the influence of disorder, it is unclear how it emerges from the parent high-temperature state. Here we report on the discovery of an unconventional ordered phase between charge-stripe order and (pseudogapped) metal in the cuprate La1.8−xEu0.2SrxCuO4. We use three complementary experiments—nuclear quadrupole resonance, nonlinear conductivity and specific heat—to demonstrate that the order appears through a sharp phase transition and exists in a dome-shaped region of the phase diagram. Our results imply that the new phase is a state, which preserves translational symmetry: a charge nematic. We thus resolve the process of charge-stripe development in cuprates, show that this nematic phase is distinct from high-temperature pseudogap and establish a link with other strongly correlated electronic materials with prominent nematic order.


Effective numbers of charge carriers in doped graphene: Generalized Fermi liquid approach
I. Kupčić, G. Nikšić, Z. Rukelj, and D. Pelc
American Physical Society (APS)
The single-band current-dipole Kubo formula for the dynamical conductivity of heavily doped graphene from Kupcic [Phys. Rev. B 91, 205428 (2015)] is extended to a two-band model for conduction pi electrons in lightly doped graphene. Using a posteriori relaxation-time approximation in the two-band quantum transport equations, with two different relaxation rates and one quasi-particle lifetime, we explain a seemingly inconsistent dependence of the dc conductivity of ultraclean and dirty lightly doped graphene samples on electron doping, in a way consistent with the charge continuity equation. It is also shown that the intraband contribution to the effective number of conduction electrons in the dc conductivity vanishes at T=0 K in the ultraclean regime, but it remains finite in the dirty regime. The present model is shown to be consistent with a picture in which the intraband and interband contributions to the dc conductivity are characterized by two different mobilities of conduction electrons, the values of which are well below the widely accepted value of mobility in ultraclean graphene. The dispersions of Dirac and pi plasmon resonances are reexamined to show that the present, relatively simple expression for the dynamical conductivity tensor can be used to study simultaneously single-particle excitations in the dc and optical conductivity and collective excitations in energy loss spectroscopy experiments.


Determination of the hyperfine magnetic field in magnetic carbon-based materials: DFT calculations and NMR experiments
Jair C. C. Freitas, Wanderlã L. Scopel, Wendel S. Paz, Leandro V. Bernardes, Francisco E. Cunha-Filho, Carlos Speglich, Fernando M. Araújo-Moreira, Damjan Pelc, Tonči Cvitanić, and Miroslav Požek
Springer Science and Business Media LLC
AbstractThe prospect of carbon-based magnetic materials is of immense fundamental and practical importance and information on atomic-scale features is required for a better understanding of the mechanisms leading to carbon magnetism. Here we report the first direct detection of the microscopic magnetic field produced at 13C nuclei in a ferromagnetic carbon material by zero-field nuclear magnetic resonance (NMR). Electronic structure calculations carried out in nanosized model systems with different classes of structural defects show a similar range of magnetic field values (18–21 T) for all investigated systems, in agreement with the NMR experiments. Our results are strong evidence of the intrinsic nature of defect-induced magnetism in magnetic carbons and establish the magnitude of the hyperfine magnetic field created in the neighbourhood of the defects that lead to magnetic order in these materials.


Mechanism of metallization and superconductivity suppression in YBa<inf>2</inf>(Cu<inf>0.97</inf> Zn<inf>0.03</inf>)<inf>3</inf> O<inf>6.92</inf> revealed by ⁶⁷Zn NQR
D Pelc, M Požek, V Despoja, and D K Sunko
IOP Publishing
We measure the nuclear quadrupole resonance signal on the Zn site in nearly optimally doped YBa2Cu3O6.92, when Cu is substituted by 3% of isotopically pure 67Zn. We observe that Zn creates large insulating islands, confirming two earlier conjectures: that doping provokes an orbital transition in the CuO2 plane, which is locally reversed by Zn substitution, and that the islands are antiferromagnetic. Also, we find that the Zn impurity locally induces a breaking of the D4 symmetry. Cluster and DFT calculations show that the D4 symmetry breaking is due to the same partial lifting of degeneracy of the nearest-neighbor oxygen sites as in the LTT transition in La 2 − x ?> BaxCuO4, similarly well-known to strongly suppress superconductivity (SC). These results show that in-plane oxygen 2p5 orbital configurations are principally involved in the metallicity and SC of all high-Tc cuprates, and provide a qualitative symmetry-based constraint on the SC mechanism.


Effects of Sr and Zn Doping on the Metallicity and Superconductivity of LSCO and YBCO
P. Lazić, D. Pelc, M. Požek, V. Despoja, and D. K. Sunko
Springer Science and Business Media LLC



17 O-NMR Knight shift study of the interplay between superconductivity and pseudogap in (Cax La1-x)(Ba1.75-x La0.25+x) Cu3 Oy
T. Cvitanić, D. Pelc, M. Požek, E. Amit, and A. Keren
American Physical Society (APS)
We report systematic 17O-NMR measurements on the high-Tc cuprate (Ca_xLa_1−x )(Ba_1.75−xLa_0.25+x )Cu_3O_y , for four different families (differen

RECENT SCHOLAR PUBLICATIONS

Diffuse scattering from correlated electron systems
R Osborn, D Pelc, MJ Krogstad, S Rosenkranz, M Greven
Science Advances 11 (7), eadt7770 2025



Pervasive symmetry-lowering nanoscale structural fluctuations in the cuprate LaSrCuO
RJ Spieker, M Spaić, I Khayr, X He, D Zhai, ZW Anderson, N Bielinski, ...
arXiv preprint arXiv:2502.02947 2025



Electronic spin susceptibility in metallic strontium titanate
A Najev, N Somun, M Spaić, I Khayr, M Greven, A Klein, MN Gastiasoro, ...
npj Quantum Materials 10 (1), 4 2025



Nanoscale structural correlations in a model cuprate superconductor
ZW Anderson, M Spaić, N Biniskos, L Thompson, B Yu, J Zwettler, Y Liu, ...
Physical Review B 110 (21), 214519 2024



Structural properties of plastically deformed and
I Khayr, S Hameed, J Budić, X He, R Spieker, A Najev, Z Zhao, L Yue, ...
Physical Review Materials 8 (12), 124404 2024



Continuous-wave cryogenic optical absorption spectrometer for sub-THz frequencies
L Rogić, N Somun, S Griffitt, A Najev, M Spaić, S Hameed, Y Shemerliuk, ...
arXiv preprint arXiv:2411.15910 2024



Multiferroicity in plastically deformed SrTiO₃
X Wang, A Kundu, B Xu, S Hameed, N Rothem, S Rabkin, L Rogić, ...
Nature communications 15 (1), 7442 2024



Cu NMR study of lightly doped LaSrCuO
M Vučković, A Najev, B Yu, T Sasagawa, N Bielinski, N Barišić, M Greven, ...
arXiv preprint arXiv:2405.18561 2024



Magnetic resonance study of rare-earth titanates
A Najev, S Hameed, A Alfonsov, J Joe, V Kataev, M Greven, M Požek, ...
Physical Review B 109 (17), 174406 2024



Oxygen-vacancy-doping study of bulk KTaO₃
CY Tan, I Khayr, D Shukla, D Pelc, M Greven
Bulletin of the American Physical Society 2024



Strain effects and structural correlation in paraelectric tellurides
X He, I Khayr, D Pelc, M Greven, B Gudac, S Sarker
Bulletin of the American Physical Society 2024



X-ray and neutron diffuse scattering and Monte Carlo modeling of local structure in the cuprate HgBa₂CuO_4+δ
Z Anderson, M Spaić, N Biniskos, B Yu, J Zwettler, Y Liu, F Ye, M Krogstad, ...
Bulletin of the American Physical Society 2024



Evidence for spin-orbit-assisted electron-phonon coupling in metallic SrTiO₃
N Somun, I Khayr, T Williams, M Greven, D Pelc
APS March Meeting Abstracts 2024, N11. 008 2024



Electron-phonon coupling in metallic and plastically deformed strontium titanate
L Rogic, S Hameed, I Khayr, M Garcia-Fernandez, D Pelc, M Greven, ...
APS March Meeting Abstracts 2024, N11. 011 2024



Contacted vs contactless measurements of normal-state resistivity of the cuprate superconductor HgBa₂CuO4_+δ
B Wendland, J Zwettler, D Shukla, Z Anderson, S Bayliff, D Pelc, ...
APS March Meeting Abstracts 2024, N11. 005 2024



Local Inversion-Symmetry Breaking in a Bismuthate High-Tc Superconductor
D Pelc
APS March Meeting Abstracts 2024, Y42. 004 2024



Transport and magnetization measurements of the high-T c superconductor Ba1-x Kx BiO 3
S Gorregattu, X He, D Zhai, D Shukla, D Pelc, M Greven
APS March Meeting Abstracts 2024, N11. 001 2024



Characterization and Strain Measurements of the Half-Heusler Superconductors YPtBi and LaPtBi
J Payne, S Sharma, D Shukla, D Pelc, M Greven
APS March Meeting Abstracts 2024, A16. 014 2024



Unusual short-range structural fluctuations in La2-xSrxCuO4 and La2-xSrxNiO4
R Spieker, D Zhai, M Spaić, X He, I Khayr, N Bielinski, M Krogstad, F Ye, ...
APS March Meeting Abstracts 2024, D16. 005 2024



Superconductivity and local structural correlations in Ba1-x Kx BiO 3
D Zhai, X He, S Gorregattu, S Griffitt, M Spaić, Z Anderson, J Joe, ...
APS March Meeting Abstracts 2024, Y16. 009 2024

MOST CITED SCHOLAR PUBLICATIONS

Emergence of superconductivity in the cuprates via a universal percolation process
D Pelc, M Vučković, MS Grbić, M Požek, G Yu, T Sasagawa, M Greven, ...
Nature communications 9 (1), 4327 2018
Citations: 88



Enhanced superconductivity and ferroelectric quantum criticality in plastically deformed strontium titanate
S Hameed, D Pelc, ZW Anderson, A Klein, RJ Spieker, L Yue, B Das, ...
Nature materials 21 (1), 54-61 2022
Citations: 85



Unusual behavior of cuprates explained by heterogeneous charge localization
D Pelc, P Popčević, M Požek, M Greven, N Barišić
Science advances 5 (1), eaau4538 2019
Citations: 73



Universal superconducting precursor in three classes of unconventional superconductors
D Pelc, Z Anderson, B Yu, C Leighton, M Greven
Nature communications 10 (1), 2729 2019
Citations: 51



Percolative nature of the direct-current paraconductivity in cuprate superconductors
P Popčević, D Pelc, Y Tang, K Velebit, Z Anderson, V Nagarajan, G Yu, ...
npj quantum materials 3 (1), 42 2018
Citations: 41



Resistivity phase diagram of cuprates revisited
D Pelc, MJ Veit, CJ Dorow, Y Ge, N Barišić, M Greven
Physical Review B 102 (7), 075114 2020
Citations: 36



Role of microscopic phase separation in gelation of aqueous gelatin solutions
D Pelc, S Marion, M Požek, M Basletić
Soft matter 10 (2), 348-356 2014
Citations: 35



Universal precursor of superconductivity in the cuprates
G Yu, DD Xia, D Pelc, RH He, NH Kaneko, T Sasagawa, Y Li, X Zhao, ...
Physical Review B 99 (21), 214502 2019
Citations: 28



Determination of the hyperfine magnetic field in magnetic carbon-based materials: DFT calculations and NMR experiments
JCC Freitas, WL Scopel, WS Paz, LV Bernardes, FE Cunha-Filho, ...
Scientific reports 5 (1), 14761 2015
Citations: 24



Unconventional charge order in a co-doped high-T_c superconductor
D Pelc, M Vučković, HJ Grafe, SH Baek, M Požek
Nature communications 7 (1), 12775 2016
Citations: 23



Uniaxial strain control of bulk ferromagnetism in rare-earth titanates
A Najev, S Hameed, D Gautreau, Z Wang, J Joe, M Požek, T Birol, ...
Physical review letters 128 (16), 167201 2022
Citations: 21



Knight shift study of the interplay between superconductivity and pseudogap in
T Cvitanić, D Pelc, M Požek, E Amit, A Keren
Physical Review B 90 (5), 054508 2014
Citations: 16



Unconventional short-range structural fluctuations in cuprate superconductors
D Pelc, RJ Spieker, ZW Anderson, MJ Krogstad, N Biniskos, NG Bielinski, ...
Scientific reports 12 (1), 20483 2022
Citations: 14



Cu nuclear magnetic resonance study of charge and spin stripe order in
D Pelc, HJ Grafe, GD Gu, M Požek
Physical Review B 95 (5), 054508 2017
Citations: 14



Four-contact impedance spectroscopy of conductive liquid samples
D Pelc, S Marion, M Basletić
Review of scientific instruments 82 (7) 2011
Citations: 13



Local inversion-symmetry breaking in a bismuthate high-T_c superconductor
S Griffitt, M Spaić, J Joe, ZW Anderson, D Zhai, MJ Krogstad, R Osborn, ...
Nature communications 14 (1), 845 2023
Citations: 12



Effective numbers of charge carriers in doped graphene: Generalized Fermi liquid approach
I Kupčić, G Nikšić, Z Rukelj, D Pelc
Physical Review B 94 (7), 075434 2016
Citations: 12



Mechanism of metallization and superconductivity suppression in YBa2 (Cu0. 97 Zn0. 03) 3 O6. 92 revealed by 67Zn NQR
D Pelc, M Požek, V Despoja, DK Sunko
New journal of physics 17 (8), 083033 2015
Citations: 12



Universal superconducting precursor in the cuprates
G Yu, DD Xia, D Pelc, RH He, NH Kaneko, T Sasagawa, Y Li, X Zhao, ...
arXiv preprint arXiv:1710.10957 2017
Citations: 9



Contactless measurement of nonlinear conductivity in the radio-frequency range
M Došlić, D Pelc, M Požek
Review of scientific instruments 85 (7) 2014
Citations: 8