Kirtley JR, Tsuei CC, Moler KA
IBM T. J. Watson Research Center, Post Office Box 218, Yorktown Heights, NY 10598, USA. Department of Applied Physics, Stanford University, Stanford, CA 94305, USA.
Science. 1999 Aug 27;285(5432):1373-1375. doi: 10.1126/science.285.5432.1373.
The temperature dependence of the half-integer magnetic flux quantum effect in thin-film tricrystal samples of the high-critical-temperature cuprate superconductor YBa(2)Cu(3)O(7-delta) was measured and found to persist from a temperature of 0.5 kelvin through a critical temperature of about 90 kelvin, with no change in total flux. This result implies that d-wave symmetry pairing predominates in this cuprate, with a small component of time-reversal symmetry breaking, if any, over the entire temperature range.
对高温临界温度铜酸盐超导体YBa(2)Cu(3)O(7-δ)的薄膜三晶样品中的半整数磁通量量子效应的温度依赖性进行了测量，发现其在0.5开尔文至约90开尔文的临界温度范围内持续存在，总磁通量没有变化。这一结果表明，在该铜酸盐中d波对称性配对占主导，在整个温度范围内，如果存在的话，时间反演对称性破缺的成分很小。
