1st Edition

High Temperature Superconductors And Other Superfluids

By A S Alexandrov, Nevill Mott Copyright 1994
    188 Pages
    by CRC Press

    188 Pages
    by CRC Press

    Written by eminent researchers in the field, this text describes the theory of superconductivity and superfluidity starting from liquid helium and a charged Bose-gas. It also discusses the modern bipolaron theory of strongly coupled superconductors, which explains the basic physical properties of high-temperature superconductors. This book will be of interest to fourth year graduate and postgraduate students, specialist libraries, information centres and chemists working in high-temperature superconductivity.

    Preface

    Liquid helium and Bose-gas

    Liquid helium and Bose-Einstein condensation

    Weakly interacting Bose-gas

    Charged Bose-gas

    Expulsion of a magnetic field by charged bosons

    Near two-dimensional bosons

    BCS theory of superconductivity

    Ground state and excitations

    Fröhlich Hamiltonian

    The BCS approximation for the electron-electron interaction

    Ground state and excitations

    Hallmarks of the BCS superconductivity

    The Meissner-Ochsenfeld effect

    BCS gap, critical temperature and tunneling

    Isotope effect

    Heat capacity

    Sound attenuation

    Nuclear spin relaxation rate

    Thermal conduction of the BCS superconductor

    Intermediate coupling superconductivity

    Electron-phonon interaction in a normal metal

    Eliashberg extension of the BCS theory

    Strongly coupled electrons and phonons

    Breakdown of the Migdal approach

    Small polarons and bipolarons

    Exact solution λ à ∞

    Polaron band and self-energy

    Phonons in a strongly coupled system

    Transition from electron to small polaron

    Biopolaronic instability

    Spin polarons and bipolarons

    Strong coupling superconductivity

    Polaronic superconductivity

    Copper pairing of nonadiabatic carriers

    High Te

    Normal state of a polaronic superconductor

    Biopolaronic superconductivity

    Biopolaron band and repulsion

    Ground state and excitations of a bioplaronic liquid

    Tn phase diagram

    Mapping a charged Bose-gas

    Bipolaron electrodynamics

    Theoretical models of high-Te oxides

    Breakdown of the Fermi-liquid approach

    Non Fermi-liquid alternatives

    Bipolaron theory of high-Te oxides

    Basic model of CuO2 plane

    Normal state

    Spin gap in NMR and neutron scattering

    Anderson localization of biopolarons

    The Hall effect and resistivity

    Thermoelectric power

    Infrared conductivity

    C-axis transport

    Superconducting state

    Isotope effect

    Heat capacity

    Thermal conductivity

    London penetration depth

    Upper critical field

    Gap, superconducting order parameter and coherence length

    Angle-resolved photoemission

    Insulating and overdoped materials

    Metal-insulator transition

    Overdoped materials

    Conclusion

    References

    Author index

    Subject index

    Biography

    A S Alexandrov, Nevill Mott