Spectroscopic study of the CuO chains in YBa2Cu3O7-x

被引：13

作者：

Edwards, H ^{[1
]}

Derro, DJ ^{[1
]}

Barr, AL ^{[1
]}

Markert, JT ^{[1
]}

deLozanne, AL ^{[1
]}

机构：

[1] UNIV TEXAS,DEPT PHYS,AUSTIN,TX 78712

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 1996年 / 14卷 / 02期

关键词：

D O I：

10.1116/1.588518

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We interpret our previously published results obtained using a technique called current-imaging tunneling spectroscopy (CITS) to study the detailed electronic structure of the CuO chains in the high-temperature superconductor YBa2Cu3O7-x near the Fermi level. Our CITS data comprise sequences of 32 simultaneously obtained images taken at bias voltages ranging from -78 to 72 mV. Cross sections of the CITS data, normalized-conductance analysis, and logarithmic-derivative analysis allow us to examine in detail the behavior of electronic modulations along the CuO chains and the energy gap in the CuO chains of YBa2Cu3O7-x. This new analysis lends a strong foundation to our previous interpretation of the CITS data [H. L. Edwards et al., Phys. Rev. Lett. 75, 1387 (1995)]. (C) 1996 American Vaccum Society.

引用

页码：1217 / 1220

页数：4

共 10 条

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