Understanding BCS Theory
Superconductivity
2007-05-23 v1
Abstract
New calculation reveals that E is constant in a thin layer across the Fermi surface, befitting the definition of energy gap parameter, Delta varies dramatically. The BCS self-consistent equation has a simple and exact solution, showing that the well-known ratio 3.5 must be replaced by 4. A simple formula is found to estimate energy gap from first principles with reasonable accuracy, useful to the current research into high Tc superconductivity.
Keywords
Cite
@article{arxiv.cond-mat/0101088,
title = {Understanding BCS Theory},
author = {Xue Heng Zheng},
journal= {arXiv preprint arXiv:cond-mat/0101088},
year = {2007}
}
Comments
3 pages, 2 figures included