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Title | Theory of High Temperature Superconductivity |
Author(s) | Fujita, S;Godoy, S |
Publication | Dordrecht, Springer Netherlands, 2001. |
Description | XIX, 374 p : online resource |
Abstract Note | Flux quantization experiments indicate that the carriers, Cooper pairs (pairons), in the supercurrent have charge magnitude 2e, and that they move independently. Josephson interference in a Superconducting Quantum Int- ference Device (SQUID) shows that the centers of masses (CM) of pairons move as bosons with a linear dispersion relation. Based on this evidence we develop a theory of superconductivity in conventional and mate- als from a unified point of view. Following Bardeen, Cooper and Schrieffer (BCS) we regard the phonon exchange attraction as the cause of superc- ductivity. For cuprate superconductors, however, we take account of both optical- and acoustic-phonon exchange. BCS started with a Hamiltonian containing ???electron??? and ???hole??? kinetic energies and a pairing interaction with the phonon variables eliminated. These ???electrons??? and ???holes??? were introduced formally in terms of a free-electron model, which we consider unsatisfactory. We define ???electrons??? and ???holes??? in terms of the cur- tures of the Fermi surface. ???Electrons??? (1) and ???holes??? (2) are different and so they are assigned with different effective masses: Blatt, Schafroth and Butler proposed to explain superconductivity in terms of a Bose-Einstein Condensation (BEC) of electron pairs, each having mass M and a size. The system of free massive bosons, having a quadratic dispersion relation: and moving in three dimensions (3D) undergoes a BEC transition at where is the pair density |
ISBN,Price | 9780306482168 |
Keyword(s) | 1. COMPLEX SYSTEMS
2. CONDENSED MATTER
3. CONDENSED MATTER PHYSICS
4. DYNAMICAL SYSTEMS
5. EBOOK
6. EBOOK - SPRINGER
7. PHYSICAL CHEMISTRY
8. STATISTICAL PHYSICS
9. Statistical Physics and Dynamical Systems
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Item Type | eBook |
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Call# | Status | Issued To | Return Due On | Physical Location |
I10913 |
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