Quantum fluctuations in Larkin-Ovchinnikov-Fulde-Ferrell superconductors

Details Quantum fluctuations in Larkin-Ovchinnikov-Fulde-Ferrell superconductors Quantum fluctuations in Larkin-Ovchinnikov-Fulde-Ferrell superconductors

2005-12-05

arxiv.org/abs/cond-mat/0512096v2

Phys. Rev. B 73, 144502 (2006).

Physics

Condensed Matter

Superconductivity

10 pages, 4 figures

Scientific paper

10.1103/PhysRevB.73.144502

We study the superconducting order parameter fluctuations near the phase transition into the Larkin-Ovchinnikov-Fulde-Ferrell state in the clean limit at zero temperature. In contrast to the usual normal metal-to-uniform superconductor phase transition, the fluctuation corrections are dominated by the modes with the wave vectors away from the origin. We find that the superconducting fluctuations lead to a divergent spin susceptibility and a breakdown of the Fermi-liquid behavior at the quantum critical point.

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