Feshbach Shape Resonance for High Tc Pairing in Superlattices of Quantum Stripes and Quantum Wells

Details Feshbach Shape Resonance for High Tc Pairing in Superlattices of Quantum Stripes and Quantum Wells Feshbach Shape Resonance for High Tc Pairing in Superlattices of Quantum Stripes and Quantum Wells

2008-12-08

arxiv.org/abs/0812.1545v1

Iranian Journal of Physics Research, 6, 139 (2006)

Physics

Condensed Matter

Superconductivity

15 pages, 13 figures

Scientific paper

The Feshbach shape resonances in the interband pairing in superconducting superlattices of quantum wells or quantum stripes is shown to provide the mechanism for high Tc superconductivity. This mechanism provides the Tc amplification driven by the architecture of material: superlattices of quantum wells (intercalated graphite or diborides) and superlattices of quantum stripes (doped high Tc cuprate perovskites) where the chemical potential is tuned to a Van Hove-Lifshitz singularity (vHs) in the electronic energy spectrum of the superlattice associated with the change of the Fermi surface dimensionality in one of the subbands.

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