ANOMALOUS VARIATION OF OPTICAL-SPECTRA WITH SPIN POLARIZATION IN DOUBLE-EXCHANGE FERROMAGNET - LA1-XSRXMNO3

被引：441

作者：

OKIMOTO, Y ^{[1
]}

KATSUFUJI, T ^{[1
]}

ISHIKAWA, T ^{[1
]}

URUSHIBARA, A ^{[1
]}

ARIMA, T ^{[1
]}

TOKURA, Y ^{[1
]}

机构：

[1] JOINT RES CTR ATOM TECHNOL, TSUKUBA, IBARAKI 305, JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.75.109

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Optical spectra and their temperature dependence have been investigated for a prototypical double-exchange ferromagnet La1-xSrxMnO3 (x=0.175). The optical conductivity spectrum above Tc is characterized by interband transitions between the exchange-split bands and gradually changes into intraband excitations with decrease of temperature, accompanied by conspicuous transfer of spectral weight over a wide energy region of 0-3 eV. The results indicate a large variation of the electronic structure with the spin polarization of the conduction carriers. © 1995 The American Physical Society.

引用

页码：109 / 112

页数：4