Tunneling into current-carrying surface states of high-T-c superconductors

被引：498

作者：

Fogelstrom, M ^{[1
]}

Rainer, D ^{[1
]}

Sauls, JA ^{[1
]}

机构：

[1] UNIV BAYREUTH,INST PHYS,D-8580 BAYREUTH,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.79.281

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Theoretical results for the ab-plane tunneling conductance in the d-wave model for high-T-c superconductors are presented. The d-wave model predicts surface bound states below the maximum gap. A subdominant order parameter, stabilized by the surface, leads to a splitting of the zero-bias conductance peak (ZBCP) in zero external field and to spontaneous surface currents. In a magnetic field, screening currents shift the bound state spectrum, leading to a splitting of the ZBCP that is linear in H at low fields and saturates at a pair breaking critical field of order H-c(*) similar or equal to 3 T.

引用

页码：281 / 284

页数：4

共 23 条

[1] S-D EXCHANGE MODEL OF ZERO-BIAS TUNNELING ANOMALIES [J].