Structure of the Fulde-Ferrell-Larkin-Ovchinnikov State in Two-Dimensional Superconductors
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概要
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Nonuniforna superconducti?ag state dtre to strong spin rnagnetisraa is studied in two-dimensional(2D) type-II supercondtrctors near the second order phase transition line between the normal andsvrpercondtrcting states. The optirntrm spatial structure of' the order parataaeter is examined insystems with cylindrically syznmetric Fermi surfaces. It is found that states with 2D structureshave lower free energies than tlae tr?tditional one-dizaaensional solutions, at low ternperatures andhigh magnetic fields. For .s-wave pairing, triangttlar, square, and hexagonal states are favoreddepending on the temperattrre, while square states are favored at low temperattrres for d-wavepairing. In these states, t[ae order pararaaeters have 2D structures such as sqtzare and triangularlattices.
- 社団法人日本物理学会の論文
- 1998-03-15
著者
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Shimahara Hiroshi
Faculty Of Integrated Arts And Sciences Hiroshima University
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Shimahara Hiroshi
Department Of Quantum Matter Science Adsm
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Shimahara Hiroshi
Faculty Of Science Hiroshima University
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