ELECTRONIC-STRUCTURE OF THE SYSTEM LA2-XSRXCUO4+DELTA

被引：199

作者：

ROMBERG, H

ALEXANDER, M

NUCKER, N

ADELMANN, P

FINK, J

机构：

[1] Kernforschungszentrum Karlsruhe, Institut für Nukleare Festkörperphysik, D-7500 Karlsruhe

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.42.8768

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic structure of La2-xSrxCuO4+ has been studied by measuring O 1s absorption edges using high-energy electron-energy-loss spectroscopy in transmission. Upon doping the insulating compound the conduction-band states are reduced and states in the gap are formed. When going from insulating to conducting compounds there is a continuous increase of states at the Fermi level, which is at the bottom of the gap. The insulator-metal transition is probably driven by delocalization of these states. © 1990 The American Physical Society.

引用

页码：8768 / 8771

页数：4

共 22 条

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