Energy Gaps in the Excitation Spectrum of a Superconductor
A. P. van GelderPhysisch Laboratorium, Katholieke Universiteit, Nijmegen, The Netherlands
1969en
ABI
Abstract
It is shown, for a particular model where the order parameter $\ensuremath{\Delta}(\mathrm{r})$ is a one-dimensional periodic step function, that the spectrum of the elementary excitations of a superconductor consists of disjunct energy bands, separated by forbidden intervals.
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