Pair correlation and dynamic Jahn-Teller effect: high Tc in nanoclusters
arXiv:1412.6197 · doi:10.1209/0295-5075/108/43001
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
References in corpus (10)
- Shell Structure and Strengthening of Superconducting Pair Correlation in Nanoclusters
- BCS superconductivity in metallic nanograins: Finite-size corrections, low energy excitations, and robustness of shell effects
- Metallic nanograins: spatially nonuniform pairing induced by quantum confinement
- Giant Strengthening of Superconducting Pairing in Metallic Nanoclusters
- Cluster-based Superconducting Tunneling Networks
- Strong pair correlation in small metallic nanoclusters: the energy spectrum
- Networks of Josephson junctions and their synchronization
- Possibility of Electron Pairing in Small Metallic Nanoparticles
- Dynamic coexistence of various configurations: clusters vs.nuclei
- Correlation between the energy shell structure and geometry in metallic nanoclusters: quasi-resonance states, isotope effect