NMR study of two-dimensional itinerant magnets PtCoO2 and PdCoO2 with a triangular lattice

被引：13

作者：

Itoh, M

Mori, M

Tanaka, M

Takei, H

机构：

[1] Chiba Univ, Fac Sci, Dept Phys, Inage Ku, Chiba 2638522, Japan

[2] Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 1060032, Japan

[3] Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan

来源：

PHYSICA B-CONDENSED MATTER | 1999年 / 259-61卷

关键词：

itinerant paramagnetism; transition metal oxide; triangular lattice; NMR;

D O I：

10.1016/S0921-4526(98)01082-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have performed Pt-195 and Co-59 NMR measurements to study microscopic magnetic properties of two-dimensional itinerant magnets PtCoO2 and PdCoO2 with the delafossite-type structure. Pt-195 and 59Co Knight shifts are almost independent of temperature and the Pt-195 nuclear spin-lattice relaxation rate 1/T-195(1) obeys the relation ((T1T)-T-195)(-1) = 3.84 +/- 0.16 K-1 s(-1). These facts show that PtCoO2 and PdCoO2 are Pauli paramagnets described by the Fermi-liquid picture without the strong electron-electron interaction. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：999 / 1000

页数：2

共 6 条

[1] NUCLEAR SPIN-LATTICE RELAXATION IN HEXAGONAL TRANSITION METALS - TITANIUM [J].