Orbital and spin chains in ZnV2O4 -: art. no. 156407

被引：253

作者：

Lee, SH ^{[1
]}

Louca, D

Ueda, H

Park, S

Sato, TJ

Isobe, M

Ueda, Y

Rosenkranz, S

Zschack, P

Iñiguez, J

Qiu, Y

Osborn, R

机构：

[1] Natl Inst Stand & Technol, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA

[2] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA

[3] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

[4] Korea Atom Energy Res Inst, HANARO Ctr, Taejon, South Korea

[5] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[6] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 15期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.93.156407

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Our powder inelastic neutron scattering data indicate that ZnV2O4 is a system of spin chains that are three-dimensionally tangled in the cubic phase above 50 K due to randomly occupied t(2g) orbitals of V3+ (3d(2)) ions. Below 50 K in the tetragonal phase, the chains become straight due to antiferro-orbital ordering. This is evidenced by the characteristic wave vector dependence of the magnetic structure factor that changes from symmetric to asymmetric at the cubic-to-tetragonal transition.

引用

页码：156407 / 1

页数：4

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