Dynamics of phase transitions in YVO3 investigated via inelastic neutron scattering and first-principles calculations

Abstract

Strong correlated system includes a wide class of materials that exhibit unusual electronic and magnetic properties, such as high-temperature superconductivity in copper oxides [1] and colossal magneto-resistivity in manganites [2]. YVO 3 is one such material that has at-tracted much attention due to the intricate coupling between spin, lattice, and orbital degrees of freedom. As the transition-metal ion V 3+ sits in an octahedral oxygen cage forming a perovskite structure, the correlation effects can lead to Jahn-Teller (JT) distortions, orbital ordering, charge and spin stripe formation, polaron localization, and phase separation. the and lattice dynamics in YVO 3 across its many structural and phase transitions and magnon changes 3 , information di-rect observation of the spin-waves and phonons in YVO 3