Theory of tunneling spectroscopy in the Larkin-Ovchinnikov state

Abstract

A theory of the tunneling spectroscopy of normal metal / Larkin-Ovchinnikov (LO) state is presented by fully taking account of the periodic modulation of pair potentials in real space. The resulting tunneling spectra have characteristic line shapes with several maxima and minima reflecting minigap structures due to the periodic pair potentials. These features are qualitatively different from tunneling spectra of Fulde-Ferrell state and those of uniform $s$- and d-wave superconductors. On the basis of calculated results, we propose a method to identify the LO state in actual experiments.

5 pages, 5 figures

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• Phase Diagram and Spectroscopy of FFLO states of two-dimensional d-wave superconductors
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Cited by in corpus (12)

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• Theory of Majorana zero modes in unconventional superconductors
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• Theory of Fulde-Ferrell-Larkin-Ovchinnikov state of superconductors with and without inversion symmetry: Hubbard model approach
• Theory of pairing symmetry in Fulde-Ferrell-Larkin-Ovchinnikov vortex state and vortex lattice
• Strongly spin-polarized current generated in Zeeman-split unconventional superconductors
• Pairing competition in a quasi-one-dimensional model of organic superconductors (TMTSF)${}_{2}X$ in magnetic field
• Spectroscopic signatures of the Larkin-Ovchinnikov state in the conductance characteristics of a normal-metal/superconductor junction
• Conductance spectroscopy of a correlated superconductor in a magnetic field in the Pauli limit: Evidence for strong correlations
• Andreev reflection between a normal metal and the FFLO superconductor II: a self-consistent approach
• Andreev reflection between a normal metal and the FFLO superconductor
• Andreev-Bragg reflection from an Amperian superconductor