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arXiv · 1104.4693

Pairing symmetry of superconductivity coexisting with antiferromagnetism

Keisuke Shigeta·Seiichiro Onari·Yukio Tanaka
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Abstract

Pairing symmetry in the superconducting state coexisting with antiferromagnetic order is studied based on a microscopic theory. We calculate the linearized Eliashberg's equation within the random phase approximation in the Hubbard model with a staggered field. We find that odd-frequency spin-triplet (equal-spin) s-wave pairing state can be realized. This result contradicts a naive expectation that antiferromagnetic order induces antiferromagnetic spin fluctuation and favors spin-singlet d-wave pairing as in the standard strongly correlated systems.

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Keisuke Shigeta, Seiichiro Onari, Yukio Tanaka. 2011-04-25. Pairing symmetry of superconductivity coexisting with antiferromagnetism. https://doi.org/10.1103/physrevb.85.224509

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