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

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

2002-06-19

arxiv.org/abs/cond-mat/0206358v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 7 figures

Scientific paper

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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