Superconductivity fluctuations in a one-dimensional two-band electron-phonon model with strong repulsive interactions |
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| Authors: | S I Matveenko A R Bishop A V Balatsky |
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| Institution: | (1) Landau Institute for Theoretical Physics, 117940 Moscow, Russia;(2) Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA;(3) Landau Institute for Theoretical Physics, 117940 Moscow, Russia;(4) Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA |
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| Abstract: | We study a one-dimensional, two-band model with short-range electron-electron repulsions (onsite U and nearest-neighbor V terms) and electron-phonon coupling. We show that there is a region of U, V and band filling in which singlet superconductivity fluctuations are dominant. This region is absent without electron-phonon
interactions and includes large values of U and V.
Zh. éksp. Teor. Fiz. 112, 296–303 (July 1997)
Published in English in the original Russian journal. Reproduced here with stylistic changes by the Translation Editor. |
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