Crystal-lattice coupling to the vortex-melting transition in YBa(2)Cu(3)O(7-delta) |
| |
Authors: | Lortz R Meingast C Welp U Kwok W K Crabtree G W |
| |
Affiliation: | Forschungszentrum Karlsruhe, Institut für Festk?rperphysik, 76021 Karlsruhe, Germany and Fakult?t für Physik, Universit?t Karlsruhe, 76131 Karlsruhe, Germany. |
| |
Abstract: | Distinct discontinuities in the thermal expansion of the crystal lattice are observed at the melting transition of the vortex lattice in a naturally untwinned reversible YBa(2)Cu3O(7-delta) single crystal using high-resolution dilatometry. This coupling between the vortex transition and the crystal lattice demonstrates that the crystal lattice is more than a mere host for the vortices, and it is attributed to a strong pressure dependence of the superconducting transition temperature and thus to the condensation energy at the vortex-melting temperature. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|