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Quantum fluctuations in Larkin-Ovchinnikov-Fulde-Ferrell superconductors

K. V. Samokhin·M. S. Mar'enko
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Abstract

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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K. V. Samokhin, M. S. Mar'enko. 2006-03-09. Quantum fluctuations in Larkin-Ovchinnikov-Fulde-Ferrell superconductors. https://doi.org/10.1103/physrevb.73.144502

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