Pair correlation and dynamic Jahn-Teller effect: high Tc in nanoclusters
Superconductivity
2015-06-23 v1 Mesoscale and Nanoscale Physics
Abstract
Electronic states in metallic nanoclusters form energy shells and degree of their filling depends on the number of delocalized electrons. In the region close to half-filling the cluster geometry oscillates between the prolate and oblate configurations (dynamic Jahn-Teller effect). For large clusters this effect competes with pair correlation and, as a result, it is perfectly realistic to observe the transition to the superconducting state. For some clusters the value of the critical temperature is rather high, near 140K
Cite
@article{arxiv.1412.6197,
title = {Pair correlation and dynamic Jahn-Teller effect: high Tc in nanoclusters},
author = {Vladimir Kresin and Yurii Ovchinnikov and Jacques Friedel},
journal= {arXiv preprint arXiv:1412.6197},
year = {2015}
}