69,71Ga NMR in the kagome lattice compound SrCr9-xGa3+xO19

被引：22

作者：

Keren, A

Mendels, P

Horvatic, M

Ferrer, F

Uemura, YJ

Mekata, M

Asano, T

机构：

[1] CNRS, High Field Magnet Lab, F-38042 Grenoble 9, France

[2] Max Planck Inst Festkorperforsch, F-38042 Grenoble 9, France

[3] Columbia Univ, Dept Phys, New York, NY 10027 USA

[4] Fukui Univ, Dept Appl Phys, Fukui 910, Japan

[5] Univ Paris Sud, Phys Solides Lab, CNRS, URA 2, F-91405 Orsay, France

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.57.10745

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the NMR site assignment of Ga-69,Ga-71 in the kagome lattice compound SrCr9-xGa3+xO19, and discuss the couplings of the different Ga nuclei with Cr moments. We find that Ga(4e) is dominantly coupled to the triangular plane, and Ga(4f) is coupled to both the kagome and triangular planes. The low-temperature behavior of die NMR signal in SrCr8Ga4O19 suggests that a slowing down of some spin degrees of freedom occurs first on the kagome plane. [S0163-1829(98)03717-5].

引用

页码：10745 / 10749

页数：5

共 17 条

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