Superconducting materials: the w$hole$ story
Abstract
Ted Geballe has contributed enormously to the knowledge of superconducting materials during an illustrious scientific career spanning seven decades, encompassing groundbreaking discoveries and studies of both so-called conventional and unconventional superconductors. On the year of his 100th birthday I would like to argue that all superconducting materials that Ted investigated, as well as those he did not, have one thing in common that is not generally recognized: hole carriers. This includes doped with , for which Ted has proposed that superconductivity is driven by negative-U pairing. I will discuss why hole carriers are necessary for a material to be a superconductor, and the implications of this for the understanding of the fundamental physics of superconductivity.
Cite
@article{arxiv.1908.04419,
title = {Superconducting materials: the w$hole$ story},
author = {J. E. Hirsch},
journal= {arXiv preprint arXiv:1908.04419},
year = {2019}
}
Comments
To be published in Ted@100 Festschrift, a special issue of JSNM in honor of Ted Geballe's 100th birthday