Pressure effect on MnSi: An NMR study

被引：13

作者：

Thessieu, C ^{[1
]}

Ishida, K

Kitaoka, Y

Asayama, K

Lapertot, G

机构：

[1] Osaka Univ, Fac Engn Sci, Dept Mat Phys, Toyonaka, Osaka 560, Japan

[2] CEA, CENG, DRFMC, F-38054 Grenoble 9, France

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1998年 / 177卷

关键词：

itinerant electron; weak ferromagnetism; high pressure; NMR;

D O I：

10.1016/S0304-8853(97)00478-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The itinerant weakly helimagnetic compound MnSi has been investigated from zero-field NMR measurements on the nonmagnetic Si-29 sites in the ordered state under hydrostatic pressure up to 17.8 kbar. The characteristic evolution of the resonance spectrum and the nuclear relaxation time T-1 is addressed with increasing pressure. Our results show clearly the existence of a remaining local magnetic order above the critical pressure P-c = 14.8 kbar. From 1/T1T = const. relation at low temperature, we extract information concerning the evolution of the density of states at the Fermi level N(epsilon(F)) as function of pressure. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：609 / 610

页数：2

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