Competing Ferri- and Antiferromagnetic Phases in Geometrically Frustrated LuFe2O4

被引：55

作者：

de Groot, J. ^{[1
,2
]}

Marty, K. ^{[3
]}

Lumsden, M. D. ^{[3
]}

Christianson, A. D. ^{[3
]}

Nagler, S. E. ^{[3
]}

Adiga, S. ^{[1
,2
]}

Borghols, W. J. H. ^{[4
]}

Schmalzl, K. ^{[5
]}

Yamani, Z. ^{[6
]}

Bland, S. R. ^{[7
]}

de Souza, R. ^{[8
]}

Staub, U. ^{[8
]}

Schweika, W. ^{[1
,2
]}

Su, Y. ^{[4
]}

Angst, M. ^{[1
,2
]}

机构：

[1] Forschungszentrum Julich, Peter Grunberg Inst PGI, D-52425 Julich, Germany

[2] Forschungszentrum Julich, Julich Ctr Neutron Sci JCNS, JARA FIT, D-52425 Julich, Germany

[3] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[4] JCNS Outstn FRM II, D-85747 Garching, Germany

[5] JCNS Outstn ILL, F-38042 Grenoble, France

[6] Canadian Neutron Beam Ctr, Natl Res Council, Chalk River, ON, Canada

[7] Univ Durham, Dept Phys, Durham DH1 3LE, England

[8] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 03期

基金：

美国能源部; 瑞士国家科学基金会;

关键词：

SPIN CORRELATION; DIFFRACTION;

D O I：

10.1103/PhysRevLett.108.037206

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a detailed study of magnetism in LuFe2O4, combining magnetization measurements with neutron and soft x-ray diffraction. The magnetic phase diagram in the vicinity of T-N involves a metamagnetic transition separating an antiferro- and a ferrimagnetic phase. For both phases the spin structure is refined by neutron diffraction. Observed diffuse magnetic scattering far above T-N is explained in terms of near degeneracy of the magnetic phases.

引用

页数：5

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