Anomalous transition temperature oscillations in LOFF state

Abstract

We consider Aharonov - Bohm effect at normal metal-inhomogeneous LOFF superconducting state transition. It is shown that magnetic flux can increase the transition temperature and AB oscillations can have the double-peak structure at one period. Expressions for fuctuational heat capacity and persistent current are calculated for a thin ring and a cylinder. We also discuss the effect of fluctuations interaction in the nonuniform states in the vicinity of the superconducting transition.

8 pages, 9 figures

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• Aharonov-Bohm effect in superconducting LOFF state

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• Quasiclassical expressions for the free energy of superconducting systems
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• Fulde-Ferrell-Larkin-Ovchinnikov states in a superconducting ring with magnetic fields: Phase diagram and the first-order phase transitions
• Inhomogeneous Superconducting States of Mesoscopic Thin-Walled Cylinders in External Magnetic Fields
• Rotating Fulde-Ferrell-Larkin-Ovchinnikov state in cold Fermi gases
• Enhancing of the in-plane FFLO-state critical temperature in heterostructures by the orbital effect of the magnetic field
• Re-entrant Fulde-Ferrell-Larkin-Ovchinnikov State in Small-Sized Superconductors
• Paramagnetic Meissner, vortex and 'onion' ground states in Fulde-Ferrell finite-size superconductor
• Kink Crystalline Condensate and Multi-kink Solution in Holographic Superconductor
• Oscillations of magnetization and conductivity in anisotropic Fulde-Ferrell-Larkin-Ovchinnikov superconductors