USING A SCANNING SQUID TO DETERMINE THE SYMMETRY OF THE ORDER-PARAMETER IN YBCO

被引：0
作者：
MATHAI, A
GIM, Y
BLACK, RC
AMAR, A
WELLSTOOD, FC
机构：
[1] Center for Superconductivity Research, Department of Physics University of Maryland, College Park
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1995年 / 5卷 / 02期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1109/77.403280
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 have determined the time and spatial symmetry of the superconducting order parameter in YBa2Cu3O7 (YBCO) by using a Scanning SQUID Microscope to perform a time-reversal invariance test, We find the order parameter in YBCO has a time-reversal invariant d(x)2(-y)2 Symmetric component, In addition, we find that the amplitude of any imaginary isotropic s-wave symmetric component must be less than 6% and any real isotropic s-wave component less than89%.
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页码：3233 / 3237
页数：5
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