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Spin-triplet superconductivity in the double-chain Hubbard model with ferromagnetic exchange interaction

โœ Scribed by T. Shirakawa; Y. Ohta; S. Nishimoto

Book ID
108184605
Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
126 KB
Volume
310
Category
Article
ISSN
0304-8853

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Ring exchange mechanism for triplet superconductivity in a two-chain Hubbard model
โœ Y. Ohta; S. Nishimoto; T. Shirakawa; Y. Yamaguchi ๐Ÿ“‚ Article ๐Ÿ“… 2006 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 95 KB

The density-matrix renormalization group (DMRG) method is used to calculate the binding energy of electrons and pair correlation functions in the two-chain zigzag-bond Hubbard model at quarter filling. We show that the ground state of the model can be superconducting in the spin-triplet channel when