Abhijeet Dhotre

@khedgiscollege.org

Assistant Professor, Department of Physics
Assistant Professor, Department of Physics, C B Khedgi's Basweshwar Science Raja Vijaysinh Commerce and Raja Jaysingh Arts College Akkalkot

Abhijeet Dhotre


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https://researchid.co/dabhijeet962

RESEARCH, TEACHING, or OTHER INTERESTS

Materials Science, Multidisciplinary
9

Scopus Publications

Scopus Publications

  • Investigation of structural, morphological, ferroelectric and dielectric properties of Zn2+ substituted BaTiO3 ceramics synthesized by hydroxy co-precipitation method
    Suhas B. Makhare, Abhijeet V. Dhotre, Chandrakant T. Birajdar, Uday B. Dindore, Arjun N. Tarale
    Journal of Materials Science Materials in Electronics, 2026
  • Enhanced Magnetoelectric Coupling in Lead-Free BaZr0.05Ti0.95O3-0.5Ba0.92Ca0.08TiO3 Piezoelectric and Ni0.8Co0.2Fe1.95(Dy0.7Tb0.3)0.05O4 Magnetostrictive Composites
    Swati K. Gaikwad, Shahaji P. Kharat, Abhijeet V. Dhotre, Bharat G. Baraskar, Sumayya M. Ansari, Yesh D. Kolekar, Chintalapalle V. Ramana
    Advanced Engineering Materials, 2025
    Magnetoelectric (ME) materials, which exhibit coupling between magnetic and ferroelectric order, hold promise for advanced electronic and energy‐harvesting applications. This study investigates a novel lead‐free ME composite system comprising Ni0.8Co0.2Fe1.95(Dy0.7Tb0.3)0.05O4 as the magnetostrictive phase and BaZr0.05Ti0.95O3‐0.5Ba0.92Ca0.08TiO3 as the piezoelectric phase. The effects of magnetostrictive phase content on the structure, microstructure, magnetic, piezoelectric, dielectric, ferroelectric, and ME properties are systematically evaluated. X‐ray diffraction and Raman spectroscopy confirm the tetragonal perovskite structure of the ferroelectric phase and the spinel cubic structure of the magnetic phase, while scanning electron microscopy reveals a dense microstructure (1.17 to 1.62 μm). Magnetic measurements at 5 K and 300 K exhibit well‐saturated hysteresis loops with low coercivity, indicative of soft ferrimagnetism. Ferroelectric hysteresis (P–E) loops indicate that the M1 and M2 composites retain typical ferroelectric characteristics, with the M2 composite exhibiting a notable remnant polarization of 4.70 μC cm−2. The M3 composite shows a squareness ratio of 0.66, suitable for multistate memory applications. The M1 composite exhibits a piezoelectric coefficient of 112 pC/N and an ME coefficient of 187.1 mV/(cm‐Oe), making it suitable for magnetic field sensing. These results highlight the potential of lead‐free ME materials for next‐generation energy, sensing, and memory applications.
  • Ferroelectric fatigue and stabilized piezoelectric properties of BaTiO3-BaZrO3 electroceramics with optimized electric poling conditions
    Suhas B. Makhare, Tejas K. Jadhav, Nikita J. Kapadi, Tulshidas C. Darvade, Abhijeet V. Dhotre, Yesh D. Kolekar, Uday B. Dindore, Rahul C. Kambale
    Journal of the Korean Ceramic Society, 2025
  • Longitudinal (α33) and transverse(α31) dynamic magnetoelectric hysteretic response for CoFe1.88Dy0.12O4–K0.5Na0.5NbO3 lead-free multiferroic laminates
    Tulshidas C. Darvade, Abhijeet V. Dhotre, Pravin S. Kadhane, Tejas K. Jadhav, Nikita J. Kapadi, Ajit R. James, V.R. Reddy, Rahul C. Kambale
    Journal of Magnetism and Magnetic Materials, 2024
  • Improved Tc and ferroelectric fatigue characteristics of BaTiO3-rich (1 − x) BaTiO3-(x) Bi0.5K0.5TiO3 lead-free electroceramics
    Onkar A. Ramdasi, Pravin S. Kadhane, Tejas K. Jadhav, Abhijeet V. Dhotre, Y. D. Kolekar, Rahul C. Kambale
    Journal of Materials Science Materials in Electronics, 2024
  • Electrical conduction and impedance spectroscopic studies for KNbO3–NaNbO3 high Tc electroceramics with enhanced d33 via BaTiO3 co-doping approach
    Tejas K. Jadhav, Nikita J. Kapadi, Tulshidas C. Darvade, Onkar A. Ramdasi, Abhijeet V. Dhotre, Rahul C. Kambale
    Journal of Materials Science Materials in Electronics, 2024
  • Crystal Structure, Microstructure, Magnetic Properties, and Dielectric Properties of Dy3+ Substituted Co-Ni Mixed Ferrite
    Abhijeet V. Dhotre, Tulshidas C. Darvade, Chaitali V. Khedkar, Keerthi Haritha, Shivaji S. Veer, Yesh D. Kolekar, C. V. Ramana
    Journal of Physical Chemistry C, 2023
    A comparative and exploration study of intrinsic, rare-earth (RE) and rare-earth and transition-metal (TM) cosubstituted cobalt ferrite (CoFe 2 O 4; CFO) materials has been performed by studying their crystal growth, phase-stability, morphology, magnetic, and electrical properties comprehensively. Pristine cobalt ferrite (CoFe 2 O 4 ), RE-ion (Dy 3+ ) substituted CFO (CoFe 1.95 Dy 0.05 O 4; RE-CFO), and TM-RE (nickel/dysprosium; Ni 2+ /Dy 3+ ) cosubstituted CFO (Co 1– x Ni x Fe 1.95 Dy 0.05 O 4; x = 0.1, 0.5; RE-TM-CFO) samples were synthesized by a standard solid-state reaction method. X-ray diffraction (XRD) together with Rietveld refinement confirms the formation of the anticipated phase, which corresponds to the space group Fd 3̅ m (227), along with the presence of a small impurity phase (DyFeO 3 ) in the samples where Dy 3+ was substituted. Surface morphology studies by means of scanning electron microscopy specifies the consequence of Ni 2+ /Dy 3+ on the microstructure as well as the presence of the orthoferrite phase of DyFeO 3 at the grain boundaries. Brunauer–Emmett–Teller (BET) analyses indicate that the specific surface area and pore contribution increases, whereas the pore width decreases for Dy-substitution in Co–Ni mixed composition, i.e., Co 1– x Ni x Fe 1.95 Dy 0.05 O 4; x = 0.5. Magnetization ( M ) versus magnetic field ( H ) measurements at variable temperature (5–400 K) confirm the ferrimagnetic nature of all the CFO, RE-CFO, and TM-RE-CFO samples. Saturation magnetization ( M s ), coercive field ( H c ), and remnant magnetization ( M r ) are observed to be decreased with Ni 2+ /Dy 3+ substitution. However, the cubic anisotropy does not follow a systematic trend. A maximum magnetostriction coefficient λ 11 = −103 ppm is attained for Co 0.9 Ni 0.1 Fe 1.95 Dy 0.05 O 4 along with the strain derivative dλ/d H = 0.1108 ppm/Oe at a lesser magnetic field of 500 Oe, making it one of the best candidates for a stress or magnetic field sensing application. Moreover, this sample may be suitable as one of the constituent phases in magneto-electric materials. The dielectric constant dispersion measurements as a function of frequency revealed the typical dielectric behavior of the ferrites. Concurrently, the presence of a single semicircle arc in the complex impedance study confirms that only grains are contributing to the conduction mechanism. Furthermore, as expected, temperature-dependent complex impedance measurements show a decrease of grain resistance ( R g ) and relaxation time (τ), whereas the grain capacitance ( C g ) is observed to be enhanced. Overall, the results point to the outcome and highlight the TM-RE mixed CFO (Co 0.9 Ni 0.1 Fe 1.95 Dy 0.05 O 4 ) is suitable for designing the magneto-mechanical devices.
  • Synthesis, characterization, electrochemical and catalytic performance of NiO nanostructures and Ag-NiO nanocomposite
    Chaitali V. Khedkar, Amol S. Vedpathak, Abhijeet V. Dhotre, Krishna D. Daware, Yesh D. Kolekar, Shrikrishna D. Sartale, Suresh W. Gosavi, Shankar I. Patil
    Chemical Physics Impact, 2023
    Nanocomposites comprising oxide and metal nanoparticles could significantly boost respective functionalities attributing to their synergistic properties. Present work reports synthesis of NiO and its composite; Ag-NiO nanocomposite. The study highlights electrochemical and catalytic performances of synthesized materials. The X-ray diffraction pattern, X-ray photoelectron spectra, magnetic and morphological study is presented with detailed analysis. Transmission electron microscopy images showed Ag nanoparticles distributed within NiO nanostructures. The cyclic voltammetry results showed specific capacitance of 231 F/g for Ag-NiO nanocomposite; higher than bare NiO (90 F/g) at 5 mV/s scan rate in 1 M KOH electrolyte. Moreover, the Ag-NiO nanocomposite exhibited significant catalytic activity towards methylene blue reduction with rate constant 1.1×10−2 s−1. The study covers basic analysis of NiO and Ag-NiO nanocomposite extending towards their functional performance.
  • Studies on properties of nio-gdc nano-composite and ni-gdc cermet
    A.U. Chavan, M.B. Kadam, A.V. Dhotre, P.S. Gaikar, K.V. Chandekar, L.D. Jadhav
    Materials Today Proceedings, 2020