Odd-frequency Spin-triplet Superconductivity in Nano-sized Superconductors under a Magnetic Field: Effects of Phonons

We theoretically study spatial variation of odd-frequency superconducting pairs under an external magnetic field. We consider a two dimensional nano-sized superconductor and solve the Eliashberg equation using the finite element method in real space. We investigate the effects of several phonon mode...

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Bibliographic Details
Published in:Physics procedia 2016, Vol.81, p.29-32
Main Authors: Kashiwagi, Masataka, Kato, Masaru
Format: Article
Language:English
Subjects:
Eliashberg equation
finite element method
nano-sized superconductors
odd-frequency superconductivity
spin-triplet
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Summary:We theoretically study spatial variation of odd-frequency superconducting pairs under an external magnetic field. We consider a two dimensional nano-sized superconductor and solve the Eliashberg equation using the finite element method in real space. We investigate the effects of several phonon modes, which is important for odd-frequency Cooper pairs. We confirm that odd-frequency component of the order parameter oscillates and widely exists in the whole system compared to a single phonon mode.
ISSN:1875-3892
1875-3892
DOI:10.1016/j.phpro.2016.04.013