Spin-triplet f-wave pairing due to three-site cyclic-exchange ferromagnetic interactions

2008/10/19 by Satoshi Nishimoto, S. Nishimoto, Y. Ohta +2
Biochemistry, Genetics and Molecular Biology · Materials Science · Physics and Astronomy · #Electron Spin Resonance Studies #FOS: Physical sciences #Magnetic properties of thin films #Magnetism in coordination complexes #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el

paper · pdf · doi:10.48550/arxiv.0810.3387

4 pages, 4 figures

arxiv created 2008/10/19 · openalex publication_date 2008/10/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Ferromagnetiam and superconductivity in a two-dimensional triangular-lattice Hubbard model are studied using the density-matrix renormalization group method. We propose a mechanism of the \it f-wave spin-triplet pairing derived from the three-site cyclic-exchange ferromagnetic interactions. We point out that a triangular network of hopping integrals, which is required for the three-site cyclic hopping processes, is contained in the (possibly) spin-triplet superconducting systems, such as Bechgaard salts (TMTSF)₂X, cobalt oxide Na_0.35CoO₂⋅1.3H₂O, and layered perovskite Sr₂RuO₄.

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