Structural, orbital, and magnetic order in vanadium spinels
O. Tchernyshyov
Abstract
Vanadium spinels (ZnV2O4, MgV2O4, and CdV2O4) exhibit a sequence of structural and magnetic phase transitions, reflecting the interplay of lattice, orbital, and spin degrees of freedom. We offer a theoretical model taking into account the relativistic spin-orbit interaction, collective Jahn-Teller effect, and spin frustration. Below the structural transition, vanadium ions exhibit ferroorbital order and the magnet is best viewed as two sets of antiferromagnetic chains with a single-ion Ising anisotropy. Magnetic order, parametrized by two Ising variables, appears at a tetracritical point.
Create a lesson
Related papers
Disorder-Induced Griffiths like Phase and Charge Localization in Sr2FeRuO6
Koustav Pal, Shuvendu Ghosh, I. Das
Interplay of electric field and electronic correlations in pairing competition in bilayer nickelates
Yanmei Cai, Yicheng Xiong, Ying Liang et al.
Beyond Kitaev exchange: Γ'-driven magnetism in Ag3LiRh2O6
Efrain Insuasti Pazmino, Shi Feng, Ramesh Dhakal et al.
Role of Gd 5d-Au 5d hybridization for the magnetic properties of Au-Al-Gd quasicrystal approximants
Goro Nozue, Hidenori Fujiwara, Satoru Hamamoto et al.
Room-Temperature Metallic 2D Ferromagnetism Stabilized by Quantum Metric
Teng-Fei Ying, Jianqi Zhong, Songyuan Geng et al.
Multiple Superconducting Phases under Pressure for Different Field Directions in UTe2
Dai Aoki, Atsushi Miyake, Ai Nakamura et al.