Time-Reversal Symmetry-Breaking Superconductivity in Heavy Fermion PrOs4Sb12 detected by Muon Spin Relaxation

A. Koda; A. Tsuchiya; H. Sato; H. Sugawara; K. Nishiyama; K. Ohishi; R. Kadono; S.R.Saha; T. Kanayama; W. Higemoto

arxiv: cond-mat/0308196 · v1 · submitted 2003-08-11 · ❄️ cond-mat.supr-con · cond-mat.str-el

Time-Reversal Symmetry-Breaking Superconductivity in Heavy Fermion PrOs4Sb12 detected by Muon Spin Relaxation

Y. Aoki , A. Tsuchiya , T. Kanayama , S.R.Saha , H. Sugawara , H. Sato , W. Higemoto , A. Koda

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K. Ohishi K. Nishiyama R. Kadono

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classification ❄️ cond-mat.supr-con cond-mat.str-el

keywords spinmuonpros4sb12relaxationsuperconductingtime-reversalappearancebelow

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We report on muon spin relaxation measurements of the 4f^2-based heavy-fermion superconductor filled-skutterudite PrOs4Sb12. 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.

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Time-Reversal Symmetry-Breaking Superconductivity in Heavy Fermion PrOs4Sb12 detected by Muon Spin Relaxation

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