Research PapersNo Access

POLARIZED SPIN STATE AND INTERMITTENT SUPERCONDUCTIVITY IN MESOSCOPIC SUPERCONDUCTING RINGS

LIANG-MA SHI

Department of Physics and Electronics, Chaohu College, Chaohu 238000, China

https://doi.org/10.1142/S0217984913500917Cited by:0 (Source: Crossref)

Abstract

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.

Keywords:

PACS: 74.20.-z, 74.25.Uv, 71.70.Ej

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