通过μ子自旋弛豫检测到重费米子PrOs4Sb12中的时间反演对称性破缺超导性。
Time-reversal symmetry-breaking superconductivity in heavy-fermion PrOs4Sb12 detected by muon-spin relaxation.
作者信息
Aoki Y, Tsuchiya A, Kanayama T, Saha S R, Sugawara H, Sato H, Higemoto W, Koda A, Ohishi K, Nishiyama K, Kadono R
机构信息
Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan.
出版信息
Phys Rev Lett. 2003 Aug 8;91(6):067003. doi: 10.1103/PhysRevLett.91.067003. Epub 2003 Aug 6.
We report on muon-spin relaxation measurements of the 4f(2)-based heavy-fermion superconductor filled-skutterudite Pr(Os4Sb12. The results reveal the spontaneous appearance of static internal magnetic fields below the superconducting transition temperature, providing unambiguous evidence for the breaking of time-reversal symmetry in the superconducting state. A discussion is made on which of the spin or orbital component of Cooper pairs carries a nonzero momentum.
我们报告了基于4f(2)的重费米子超导体填充方钴矿Pr(Os4Sb12)的μ子自旋弛豫测量结果。结果揭示了在超导转变温度以下静态内部磁场的自发出现，为超导态下时间反演对称性的破缺提供了明确证据。我们讨论了库珀对的自旋或轨道分量中哪一个携带非零动量。
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