ANGLE-RESOLVED-PHOTOEMISSION STUDY OF BI2SR2CACU2O8+DELTA - METALLICITY OF THE BI-O PLANE

被引：116

作者：

WELLS, BO

SHEN, ZX

DESSAU, DS

SPICER, WE

OLSON, CG

MITZI, DB

KAPITULNIK, A

LIST, RS

ARKO, A

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011

[2] STANFORD UNIV,DEPT APPL PHYS,STANFORD,CA 94305

[3] UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.65.3056

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have performed high-resolution angle-resolved-photoemission experiments on Bi2Sr2CaCu2O8+single crystals with different annealing histories. By depositing a small amount of Au on the surface, we were able to distinguish electronic states associated with the Bi-O surface layer. We found that the Bi-O atomic surface layer is metallic and superconducting for samples that were high-temperature annealed in oxygen but not for as-grown samples. The Cu-O plane is found to be superconducting in all samples. © 1990 The American Physical Society.

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页码：3056 / 3059

页数：4

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