Abstract
A general Mathematical formulation is developed for calculating the electron response function of layered superconductors. A model Hamiltonian for the low-dimensional superconducting system is developed which includes (i) bare electron interactions, (ii) harmonic phonon fields, (iii) electron-phonon interactions, (iv) anharmonic phonons and (v) effects of localized phonon fields. Quantum dynamics of electrons is studied adopting the Green's function theory via this advanced Hamiltonian in order to describe the many-body problem. This work remarkably describes that the electron-phonon coupling coefficient shows its inevitable presence in all sectors of phonon fields, namely, the fields of (i) anharmonic phonons (ii) localized phonons and (iii) the impurity-anharmonicity interaction. The expressions for electron density of states and electron heat capacity are also obtained in the new framework.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
