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

Abstract

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.

5 pages with 3 figures

References in corpus (10)

• Time-Reversal Symmetry Breaking Superconductivity in Sr2RuO4
• Multiple Superconducting Phases in New Heavy Fermion Superconductor PrOs4Sb12
• Thermodynamical Study on the Heavy-Fermion Superconductor PrOs4Sb12: Evidence for Field-Induced Phase Transition
• Evidence for Unconventional Strong-coupling Superconductivity in PrOs_4Sb_12 : An Sb Nuclear Quadrupole Resonance (NQR) Study
• Low temperature specific heat of the heavy fermion superconductor PrOs${}_4$Sb${}_{12}$
• Fermi surface of the heavy fermion superconductor PrOs${}_4$Sb${}_{12}$
• muSR linewidth and isotropic pairing in superconducting PrOs4Sb12
• Field Dependence of Electronic Specific Heat in Two-Band Superconductors
• Absence of zero field muon spin relaxation induced by superconductivity in the B phase of UPt${}_3$
• Hunds Rule Theory for Heavy Fermion Superconductors

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