Low-temperature specific heat of YBa2Cu3O7-delta, 0 <=delta <= 0.2: Evidence for d-wave pairing

Authors
Wright, DA Emerson, JP Woodfield, BF Gordon, JE Fisher, RA Phillips, NE
Citation
Da. Wright et al., Low-temperature specific heat of YBa2Cu3O7-delta, 0 <=delta <= 0.2: Evidence for d-wave pairing, PHYS REV L, 82(7), 1999, pp. 1550-1553
Citations number
23
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
82
Issue
7
Year of publication
1999
Pages
1550 - 1553
Database
ISI
SICI code
0031-9007(19990215)82:7<1550:LSHOY0>2.0.ZU;2-C
Abstract
The dependence of the specific heat of YBa2CU3O7-delta on temperature (T) a nd magnetic field (H) shows a number of features predicted for d-wave pairi ng: a T-2 term for H = 0 and an (HT)-T-1/2 term for H not equal 0 and low T , with a crossover to a stronger T dependence at higher T. For all H and T, these results are consistent with a recently proposed scaling relation. Va lues of the parameters derived from experimental data agree with theoretica l predictions.[S0031-9007(99)08481-1].