Pairing symmetry in single-layer tetragonal Tl2Ba2CuO6+delta superconductors

被引：207

作者：

Tsuei, CC

Kirtley, JR

Rupp, M

Sun, JZ

Gupta, A

Ketchen, MB

Wang, CA

Ren, ZF

Wang, JH

Bhushan, M

机构：

[1] SUNY BUFFALO,SUPERCONDUCTING MAT LAB,BUFFALO,NY 14260

[2] SUNY STONY BROOK,DEPT PHYS,STONY BROOK,NY 11794

来源：

SCIENCE | 1996年 / 271卷 / 5247期

关键词：

D O I：

10.1126/science.271.5247.329

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A high-resolution scanning superconducting quantum interference device microscopy study of tetragonal single-layer Tl2Ba2CuO6+delta films, deposited on tricrystal SrTiO3 substrates, demonstrates the effect of spontaneously generated half flux quanta. This observation shows that in addition to YBa2Cu2O7, the order parameter symmetry in Tl2Ba2CuO6+delta is consistent with that of a d(x?2-y)(2) pair state. This result also rules out any bilayer or twinning effects and any pairing that is incompatible with the fourfold rotational symmetry as in the Tl2Ba2CuO6+delta superconducting system.

引用

页码：329 / 332

页数：4

共 21 条

[1] TIME-REVERSAL SYMMETRY-BREAKING IN SUPERCONDUCTORS - A PROPOSED EXPERIMENTAL TEST [J].