Physics of p-wave spin-triplet pairing with the experimental examples of Strontium Ruthenate
نویسنده
چکیده
This paper deals with the unconventional superconducting properties of Sr2RuO4, the best-known examples of p-wave superconductor with spin-triplet pairing. I shall first review the definition and rough classification of unconventional superconductivity. The formalism for p-wave spin-triplet pairing is examined. This will lead into the discussion of the most likely p-wave state for Sr2RuO4, its additional symmetry-breaking quality – namely breaking of time-reversal symmetry, and the corresponding state in He. The experimental evidences for both spin-triplet pairing and time-reversal symmetry breaking in Sr2RuO4 shall be presented next. Then I shall discuss two major controversies in Sr2RuO4 physics – the existence and location of gap nodes or deep minima and the possibilities of multiple superconducting phases.
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