Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
1 PublicationTemperature-induced pair correlations in cluster and nuclei
Frauendorf, S.; Kuzmenko, N. K.; Mikhailov, V. M.; Sheikh, J. A.
Abstract
The pair correlations in mesoscopic systems such as nanometer-size superconducting clusters and nuclei are studied at a finite temperature for the canonical ensemble of fermions in model spaces with a fixed particle number: (i) a degenerate spherical shell (strong-coupling limit), (ii) an equidistantly spaced deformed shell (weak-coupling limit). It is shown that after the destruction of the pair correlations at T = 0 by a strong magnetic field or rapid rotation, heating can bring them back. This phenomenon is a consequence of the fixed number of fermions in the canonical ensemble.
-
Physical Review B 68, 024518 (2003)
DOI: 10.1103/PhysRevB.68.024518
Cited 24 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-5818
Years: 2023 2022 2021 2020 2019 2018 2017 2016 2015