arXiv subjects

O. V. Usmanov

Publications and source records attributed to O. V. Usmanov.

2 recordsLinked to original sources

arXiv2025

Magnetic phase diagram of magnetocaloric TmFeO$_3$

Neutron diffraction experiments of TmFeO$_3$ single crystals were performed in the external magnetic fields. The field along $c$-axis increases temperature of spin-reorientation transition $T_{SR}$ from phase $Γ4$ to $Γ2$. Application of the field along $b$-axis led to the decrease of $T_{SR}$ and to the formation of new phases. Based on the temperature and field dependence of the Bragg reflection intensity, the configuration of magnetically induced phases was proposed.

cond-mat.str-el↗

arXiv2022

Magnetic phase diagram of HoFeO$_3$ by neutron diffraction

Neutron diffraction studies of HoFeO$_3$ single crystal were performed under external magnetic fields. The interplay between the external magnetic field, Dzyaloshinsky-Moria antisymmetric exchange and isotropic exchange interactions between Fe and Ho sublattice and inside Fe sublattice provides a rich phase diagram. As the result of the balance of exchange interactions inside crystal and external magnetic field we found 8 different magnetic phases, produced or suppressed by the field.

cond-mat.other↗