POLARIZED SPIN STATE AND INTERMITTENT SUPERCONDUCTIVITY IN MESOSCOPIC SUPERCONDUCTING RINGS
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Ground states are studied by solving a modified Ginzburg–Landau model for mesoscopic metallic superconducting rings. It is found that surface effect related spin-orbit (SO) interaction can generate an effective orbital magnetic field of opposite orientations for spin-up and spin-down electrons which leads to spin-polarized states with opposite chirality. The quantum phase transition between the spin-polarized states and spin singlet superconducting states can occur by applying an external magnetic field normal to the ring-plane.
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1997 ◽
Vol 8
(4)
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pp. 331-345
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1998 ◽
Vol 302
(4)
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pp. 304-310
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2006 ◽
Vol 16
(09)
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pp. 1527-1558
1990 ◽
Vol 83
(3)
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pp. 443-454
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