REVERSIBLE EU2+[--]EU3+ TRANSITIONS AT EU-SI INTERFACES

被引：6

作者：

HENLE, WA ^{[1
]}

RAMSEY, MG ^{[1
]}

NETZER, FP ^{[1
]}

HORN, K ^{[1
]}

机构：

[1] MAX PLANCK GESELL,FRITZ HABER INST,W-1000 BERLIN 33,GERMANY

来源：

APPLIED PHYSICS LETTERS | 1991年 / 58卷 / 15期

关键词：

D O I：

10.1063/1.105139

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Valence switching at Eu-Si interfaces is demonstrated by resonant photoemission during repeated oxidation-reduction cycles performed by room-temperature O2 exposure and mild heating. The Eu2+ <--> Eu3+ transitions are accompanied by Fermi level switching associated with changes in the stoichiometry of the surface heterostructure. The ability to cycle between two well-defined magnetic states at a surface may be attractive in technological applications.

引用

页码：1605 / 1607

页数：3