Electronic structures and magnetic properties of spinel ZnMn2O4 under high pressure

被引：72

作者：

Choi, H. C. ^{[1
]}

Shim, J. H. ^{[1
]}

Min, B. I. ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Phys, PCTP, Pohang 790784, South Korea

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.74.172103

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spinel ZnMn2O4, which has a Jahn-Teller active Mn3+ ion, was reported to exhibit a first order structural phase transition under high pressure. The c/a ratio in the tetragonal structure reduces drastically from 1.62 to 1.10 at the transition pressure of P-c similar to 23 GPa. The transition was attributed to the change in the electronic configuration of Mn ions. Employing the full-potential linearized augmented plane wave band method, we have investigated the change of the electronic structure with varying both the volume and c/a ratio. Under high pressure, we have demonstrated the structural and the spin-state transition from a high-spin to a low-spin configuration of Mn3+.

引用

页数：4

共 9 条

[1] MAGNETIC STRUCTURES IN SPINEL B-SITE LATTICES - A PROPOSAL OF LINEAR ANTIFERROMAGNETISM IN ZNMN2O4 [J].