OPTICAL-SPECTRA OF Y1-XCAXVO3 - CHANGE OF ELECTRONIC-STRUCTURES WITH HOLE DOPING IN MOTT-HUBBARD INSULATORS

被引：66

作者：

KASUYA, M

TOKURA, Y

ARIMA, T

EISAKI, H

UCHIDA, S

机构：

[1] UNIV TOKYO,DEPT PHYS,TOKYO 113,JAPAN

[2] UNIV TOKYO,DEPT APPL PHYS,TOKYO 113,JAPAN

[3] UNIV TOKYO,SUPERCOND RES COURSE,TOKYO 113,JAPAN

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.47.6197

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In perovskitelike solid solutions Y1-xCaxVO3, the insulator-metal transition has been observed around x = 0. 5, which can be interpreted as being caused by hole doping in a Mott-Hubbard insulator YVO3. Change of electronic structures has been investigated by measurements and analyses of optical spectra. New electronic states were observed to grow within the Mott-Hubbard gap upon hole doping and eventually compose the states near the Fermi level in the metallic phase. Doping-induced changes of electronic structures are argued in comparison with the case of cuprate superconductors.

引用

页码：6197 / 6202

页数：6

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