Stoichiometric effects on the optical spectra and pressure response of Fe1-xMnxSi

被引：9

作者：

Bauer, E

Bocelli, S

Hauser, R

Marabelli, F

Spolenak, R

机构：

[1] UNIV PAVIA,IST NAZL FIS MAT,I-27100 PAVIA,ITALY

[2] TECH UNIV VIENNA,INST EXPT PHYS,A-1040 VIENNA,AUSTRIA

[3] UNIV PAVIA,DIPARTIMENTO FIS A VOLTA,I-27100 PAVIA,ITALY

来源：

PHYSICA B | 1997年 / 230卷

关键词：

Fe1-xMnxSi; narrow-gap semiconductor; Kondo insulator; pressure dependence; optical properties;

D O I：

10.1016/S0921-4526(96)00842-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present optical measurements on Fe1-xMnxSi revealing almost identical band structures in the whole series. The appearance of low-frequency features, possibly related to impurities, is confirmed. Hydrostatic pressure applied to FeSi causes an increase of the gap width. The suppression of long-range magnetic order for alloys near to MnSi at some critical value of pressure is accompanied by strong deviations from the expected Fermi-liquid behaviour.

引用

页码：794 / 796

页数：3

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