Time-Reversal Symmetry-Breaking Superconductivity in Heavy-Fermion<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow><mml:mi mathvariant="normal">P</mml:mi><mml:mi mathvariant="normal">r</mml:mi><mml:mi mathvariant="normal">O</mml:mi><mml:mi mathvariant="normal">s</mml:mi></mml:mrow><mml:mn>4</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant="normal">S</mml:mi><mml:mi mathvariant="normal">b</mml:mi></mml:mrow><mml:mn>12</mml:mn></mml:msub></mml:math>Detected by Muon-Spin Relaxation
説明
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
収録刊行物
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- Physical Review Letters
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Physical Review Letters 91 (6), 067003-, 2003-08-06
American Physical Society (APS)