Spin Density Wave versus Fractional Magnetization Plateau in a Triangular Antiferromagnet

被引：10

作者：

Facheris, L. ^{[1
]}

Povarov, K. Yu ^{[1
]}

Nabi, S. D. ^{[1
]}

Mazzone, D. G. ^{[2
]}

Lass, J. ^{[2
,3
]}

Roessli, B. ^{[2
]}

Ressouche, E. ^{[4
]}

Yan, Z. ^{[1
]}

Gvasaliya, S. ^{[1
]}

Zheludev, A. ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Lab Solid State Phys, CH-8093 Zurich, Switzerland

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

[3] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark

[4] Univ Grenoble Alpes, MDN, MEM, IRIG,CEA, F-38000 Grenoble, France

来源：

PHYSICAL REVIEW LETTERS | 2022年 / 129卷 / 08期

关键词：

EXPONENTS;

D O I：

10.1103/PhysRevLett.129.087201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report an excellent realization of the highly nonclassical incommensurate spin-density wave (SDW) state in the quantum frustrated antiferromagnetic insulator Cs2CoBr4. In contrast to the well-known Ising spin chain case, here the SDW is stabilized by virtue of competing planar in-chain anisotropies and frustrated interchain exchange. Adjacent to the SDW phase is a broad m = 1/3 magnetization plateau that can be seen as a commensurate locking of the SDW state into the up-up-down (UUD) spin structure. This represents the first example of the long-sought SDW-UUD transition in triangular-type quantum magnets.

引用

页数：6

共 42 条

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