We investigate theoretically the shielding of the electromagnetic field fluctuations by s-wave and d-wave superconductors within the framework of macroscopic quantum electrodynamics. The spin flip lifetime is evaluated above a niobium and a bismuth strontium calcium copper oxide (BSCCO) surface, and the screening effect is studied as a function of the thickness of the superconducting layer. Further, we study the different temperature dependence of the atomic spin relaxation above the two superconductors.
@article{arxiv.0902.1981,
title = {Screening of electromagnetic field fluctuations by s--wave and d--wave superconductors},
author = {Rachele Fermani and Stefan Scheel},
journal= {arXiv preprint arXiv:0902.1981},
year = {2015}
}