Authors
Citation
X. Hu et al., DELTA-FUNCTION PEAK IN THE SPECIFIC-HEAT OF HIGH-T-C SUPERCONDUCTORS - MONTE-CARLO SIMULATION, Physical review letters, 79(18), 1997, pp. 3498-3501
Citations number
25
Categorie Soggetti
Physics
Journal title
ISSN journal
00319007
Volume
79
Issue
18
Year of publication
1997
Pages
3498 - 3501
Database
ISI
SICI code
0031-9007(1997)79:18<3498:DPITSO>2.0.ZU;2-D
Abstract
A delta-function peak in the specific heat is observed at the melting
point T-m of the flux lattice in high-T-c superconductors. It is 18.5k
(B) and 17.5k(B) in the liquid and the solid phases per flux per layer
, respectively, and increases to 23k(B) in Delta T = 0.009T(m) around
T-m. At T-m the system changes from the triangular flux lattice to a d
ecoupled 2D liquid of vortices. The latent heat is 0.07k(B)T(m), per A
ux per layer.