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Spin-fluctuation superconductivity in the Hubbard model
The theory of the superconductivity mediated by kinematic and exchange interactions in t−J and two-band Hubbard models in a paramagnetic state is formulated. The Dyson equations for the matrix Green functions in terms of the Hubbard operators are obtained in the non-crossing approximation. To ca...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
Інститут фізики конденсованих систем НАН України
1998
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| Series: | Condensed Matter Physics |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/118580 |
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| Summary: | The theory of the superconductivity mediated by kinematic and exchange
interactions in t−J and two-band Hubbard models in a paramagnetic state
is formulated. The Dyson equations for the matrix Green functions in terms
of the Hubbard operators are obtained in the non-crossing approximation.
To calculate superconducting Tc a numerical solution of self-consistent
Eliashberg equations is proposed. |
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