Magnetic field driven 2D-3D crossover in the S=1/2 frustrated chain magnet LiCuVO4

被引：18

作者：

Prozorova, L. A. ^{[1
]}

Sosin, S. S. ^{[1
]}

Svistov, L. E. ^{[1
]}

Buettgen, N. ^{[2
]}

Kemper, J. B. ^{[3
]}

Reyes, A. P. ^{[3
]}

Riggs, S. ^{[3
]}

Prokofiev, A. ^{[4
]}

Petrenko, O. A. ^{[5
]}

机构：

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

[2] Univ Augsburg, Ctr Elect Correlat & Magnetism EKM, Expt Phys 5, D-86135 Augsburg, Germany

[3] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

[4] Tech Univ Wien, Inst Festkorperphys, A-1040 Vienna, Austria

[5] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

来源：

PHYSICAL REVIEW B | 2015年 / 91卷 / 17期

基金：

美国国家科学基金会;

关键词：

COMPOUND LICUVO4; QUANTUM; PHASE;

D O I：

10.1103/PhysRevB.91.174410

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on a heat-capacity study of high-quality single-crystal samples of LiCuVO4-a frustrated spin S = 1/2 chain system-in a magnetic field amounting to 3/4 of the saturation field. A detailed examination of magnetic phase transitions observed in this field range shows that although the low-field helical state clearly has three-dimensional properties, the field-induced spin-modulated phase turns out to be quasi-two-dimensional. The model proposed in this paper allows one to qualitatively understand this crossover, thus eliminating the presently existing contradictions in the interpretations of NMR and neutron-scattering measurements.

引用

页数：5

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