A detailed study of the magnetic phase transition in CuCrO2

被引：8

作者：

Ehlers, G. ^{[1
]}

Podlesnyak, A. A. ^{[1
]}

Frontzek, M. ^{[2
]}

Freitas, R. S. ^{[3
]}

Ghivelder, L. ^{[4
]}

Gardner, J. S. ^{[5
,6
,7
]}

Shiryaev, S. V. ^{[8
]}

Barilo, S. ^{[8
]}

机构：

[1] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA

[2] Paul Scherrer Inst, Neutron Scattering Lab, CH-5232 Villigen, Switzerland

[3] Univ Sao Paulo, Inst Fis, BR-05314970 Sao Paulo, Brazil

[4] Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, RJ, Brazil

[5] Indiana Univ, Dept Phys, Bloomington, IN 47408 USA

[6] NIST, NCNR, Gaithersburg, MD 20899 USA

[7] Natl Synchrotron Radiat Res Ctr, Neutron Grp, Hsinchu 30077, Taiwan

[8] Inst Solid State & Semicond Phys, Minsk 220072, BELARUS

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2013年 / 25卷 / 49期

基金：

美国国家科学基金会; 巴西圣保罗研究基金会;

关键词：

Compendex;

D O I：

10.1088/0953-8984/25/49/49600

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The phase transition in CuCrO2 to an ordered magnetic state is studied with bulk measurements and elastic and inelastic neutron scattering techniques. The reported onset of spontaneous electric polarization at T D 23.5 K coincides with the appearance, on cooling, of elastic magnetic scattering. At higher temperatures long range magnetic correlations gradually develop but they are dynamic. The ground state is characterized by three-dimensional long range magnetic ordering but along the c direction the correlation length remains limited to similar to 200 angstrom.

引用

页数：6

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