Magnetic Phases and Chirality Control in Magnetic Multiferroics Nd0.8Tb0.2 MnO by the Neutron Scattering Igor Zobkalo, Sergey Gavrilov, Anna Matveeva, Andrew Sazonov, Sergey Barilo, et al. IEEE Transactions on Magnetics, 2022 Neutron diffraction study of Nd<sub>0.8</sub>Tb<sub>0.2</sub>Mn<sub>2</sub>O<sub>5</sub> single crystal has been performed using both non-polarized and polarized neutron diffraction. Low temperature set of magnetic satellites corresponding to two magnetic ordered phases witnesses about the magnetic phase separation. One of those phases with propagation vector <inline-formula> <tex-math notation="LaTeX">$k_{1} = (0.5\\,\\,0\\,\\,k_{z1})$ </tex-math></inline-formula> bears features of magnetic order in TbMn<sub>2</sub>O<sub>5</sub> with ordering temperature <inline-formula> <tex-math notation="LaTeX">$\\text {TN} \\approx 37$ </tex-math></inline-formula> K. Another one with propagation vector <inline-formula> <tex-math notation="LaTeX">$k_{2} = (0.5\\,\\,0\\,\\,k_{z2})$ </tex-math></inline-formula> and Neel temperature of <inline-formula> <tex-math notation="LaTeX">$\\text {TN2} \\approx 30$ </tex-math></inline-formula> K has a great similarity to magnetic order of NdMn<sub>2</sub>O<sub>5</sub>. Both of them are chiral at low temperatures. Difference in chiral domain population could be controlled by the external electric field of few kV/cm. Two additional magnetic phases with <inline-formula> <tex-math notation="LaTeX">$k_{3,4} = (0.5\\,\\,0\\,\\,k_{z3,4})$ </tex-math></inline-formula> were observed in the short intermediate temperature range 20–28 K. Significant temperature hysteresis of 6–8 K for all magnetic phases was observed in dependence of cooling/heating temperature evolution. Results are discussed in the frame of competing magnetic interactions.
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