Evidence for orthorhombic distortion in the ordered state of ZnCr2O4: A magnetic resonance study

被引：19

作者：

Glazkov, V. N. ^{[1
]}

Farutin, A. M. ^{[1
]}

Tsurkan, V. ^{[2
,3
]}

von Nidda, H. -A. Krug ^{[2
]}

Loidl, A. ^{[2
]}

机构：

[1] RAS, PL Kapitza Phys Problems Inst, Moscow 119334, Russia

[2] Univ Augsburg, Ctr Elect Correlat & Magnetism, D-86135 Augsburg, Germany

[3] Moldavian Acad Sci, Inst Appl Phys, MD-2028 Kishinev, Moldova

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 02期

关键词：

antiferromagnetic materials; distortion; frustration; magnetic domains; magnetic resonance; magnetic transitions; magnetisation; paramagnetic resonance; zinc compounds; SPIN-RESONANCE; HEAVY-FERMION; ANTIFERROMAGNET; TRANSITION; PHASE; LIV2O4;

D O I：

10.1103/PhysRevB.79.024431

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present an elaborate electron-spin-resonance study of the low-energy dynamics and magnetization in the ordered phase of the magnetically frustrated spinel ZnCr2O4. We observed several resonance modes corresponding to different structural domains and found that the number of domains can be easily reduced by field cooling the sample through the transition point. To describe the observed antiferromagnetic resonance spectra, it is necessary to take into account an orthorhombic lattice distortion in addition to the earlier reported tetragonal distortion which both appear at the antiferromagnetic phase transition.

引用

页数：10

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