Orbital competition of Mn3+ and V3+ ions in Mn1+xV2-xO4
J. L. Jiao (1), H. P. Zhang (2), Q. Huang (3), W. Wang (1), G. Wang, (1), Q. Ren (1), R. Sinclair (3), G.T. Lin (1), A. Huq (4), H. Cao (4), H. D., Zhou (3), M. Z. Li (2), J. Ma (1) ((1) Key Laboratory of Artificial, Structures, Quantum Control, School of Physics, Astronomy
TL;DR
This study investigates the structural and magnetic properties of Mn1+xV2-xO4, revealing phase transitions and magnetic behaviors influenced by orbital interactions of Mn and V ions, using experimental and first-principles methods.
Contribution
It provides new insights into the orbital competition and magnetic transitions in Mn1+xV2-xO4 through combined experimental and theoretical analysis.
Findings
Phase transition from cubic to tetragonal for x<=0.3
Persistent tetragonal structure for x>0.3
Identification of orbital effects and exchange energies of Mn and V ions
Abstract
The structure and magnetic properties of Mn1+xV2-xO4 (0<x<=1), a complex frustrated system, were investigated by heat capacity, magnetization, x-ray diffraction, and neutron diffraction measurements. For x<=0.3, a cubic-to-tetragonal (c > a) phase transition was observed. For x > 0.3, the system maintained the tetragonal lattice. The collinear and noncollinear magnetic transition was also observed for all compositions. To reveal the dynamics of the ground state, first principle simulation was applied to not only analyze the orbital effects of Mn2+, Mn3+, and V3+ ions, but also the related exchange energies.
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Taxonomy
TopicsAdvanced Condensed Matter Physics · Plant and Fungal Species Descriptions · Transition Metal Oxide Nanomaterials