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Magnetic-field induced triplet superconductivity in the Hubbard model on a triangular lattice

Ryotaro Arita·Kazuhiko Kuroki·Hideo Aoki
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Abstract

We propose theoretically that a magnetic field can realize spin-triplet superconductivity in repulsively interacting electron systems having strong ferromagnetic spin fluctuations. We confirm the general idea for the low-density Hubbard model on a triangular lattice, whose Fermi surface consists of disconnected pieces, by calculating the pairing susceptibility in a moderate magnetic field with the quantum Monte-Carlo method combined with the dynamical cluster approximation.

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Ryotaro Arita, Kazuhiko Kuroki, Hideo Aoki. 2002-06-19. Magnetic-field induced triplet superconductivity in the Hubbard model on a triangular lattice. https://arxiv.org/abs/cond-mat/0206358

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