Effect of the BCS Supercurrent on the Spontaneous Surface Flow in Unconventional Superconductivity with Broken Time-Reversal-Symmetry
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概要
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A spontaneotxs strrface current state is iravestigated in unconventional stuperconductivity witlabrokera tiraae-reversal-syraau'taetr)'. It is shoxvn that a BCS strpercurrent lowers tlae energy of tluesystena in this st?tte. The lowest state has zero Lot;xl cttrrent; it satisfies the Bloclt theore?n whiclastates absence of the total ctrrrent in atay stable state witla no external field. We also show thatthe magnitude and the direction of tlae spontaneous cttrrent are strongly afl'ected by the detailof the Fermi surface, XVe explain this effect in cotunection xvitl'x a low-energy bottrad state nearthe strrface originatting from tlae stnisotropy of' tlxe order pararneter.
- 社団法人日本物理学会の論文
- 1999-03-15
著者
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OHASHI Yoji
Institute of Physics,University of Tsukuba
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Ohashi Yoji
Institute Of Physics University Of Tsukuba
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KUSAMA Yoshikatsu
Institute of Physics,University of Tsukuba
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Kusama Yoshikatsu
Institute Of Physics University Of Tsukuba
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