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Superexchange Mediated Superconductivity in the Single Band Hubbard Model

Doniach, S. / Hirschfeld, P. J. / Inui, M. / Ruckenstein, A. E.

Abstract We discuss the physics of BCS pairing in the strongly correlated single band Hubbard model close to half-filling. In contrast to spin-fluctuation mediated pairing of importance in 3 He and heavy Fermion systems, we argue that the superexchange mediated pairing proposed by Anderson is stabilized by short range antiferromagnetic spin ordering. A mean field calculation shows that coexistence of antiferromagnetism and superconductivity is a stable solution for a doped Mott-Hubbard system.

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Superexchange Mediated Superconductivity in the Single Band Hubbard Model

Doniach, S. / Hirschfeld, P. J. / Inui, M. / Ruckenstein, A. E.

Abstract We discuss the physics of BCS pairing in the strongly correlated single band Hubbard model close to half-filling. In contrast to spin-fluctuation mediated pairing of importance in 3 He and heavy Fermion systems, we argue that the superexchange mediated pairing proposed by Anderson is stabilized by short range antiferromagnetic spin ordering. A mean field calculation shows that coexistence of antiferromagnetism and superconductivity is a stable solution for a doped Mott-Hubbard system.

Superexchange Mediated Superconductivity in the Single Band Hubbard Model

Doniach, S. / Hirschfeld, P. J. / Inui, M. / Ruckenstein, A. E.

Abstract We discuss the physics of BCS pairing in the strongly correlated single band Hubbard model close to half-filling. In contrast to spin-fluctuation mediated pairing of importance in 3 He and heavy Fermion systems, we argue that the superexchange mediated pairing proposed by Anderson is stabilized by short range antiferromagnetic spin ordering. A mean field calculation shows that coexistence of antiferromagnetism and superconductivity is a stable solution for a doped Mott-Hubbard system.

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Titel:

Superexchange Mediated Superconductivity in the Single Band Hubbard Model

Beteiligte:

Doniach, S. (Autor:in) / Hirschfeld, P. J. (Autor:in) / Inui, M. (Autor:in) / Ruckenstein, A. E. (Autor:in)

Erschienen in:

Novel Superconductivity ; 395-399

Erscheinungsdatum:

01.01.1987

Format / Umfang:

5 pages

ISBN:

978-1-4612-9076-6 , 978-1-4613-1937-5

DOI:

https://doi.org/10.1007/978-1-4613-1937-5_43

Medientyp:

Aufsatz/Kapitel (Buch)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

Hubbard Model , Coulomb Repulsion , Pairing Mechanism , Heavy Fermion System , Resonant Valence Bond Physics , Strongly Correlated Systems, Superconductivity , Characterization and Evaluation of Materials

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