DENSITY-OF-STATES FLUCTUATIONS IN THE C-AXIS MAGNETOCONDUCTIVITY OF YBA2CU3O7-DELTA

Citation
J. Axnas et al., DENSITY-OF-STATES FLUCTUATIONS IN THE C-AXIS MAGNETOCONDUCTIVITY OF YBA2CU3O7-DELTA, Czechoslovak journal of Physics, 46, 1996, pp. 2029-2030
Citations number
9
Categorie Soggetti
Physics
ISSN journal
00114626
Volume
46
Year of publication
1996
Supplement
4
Pages
2029 - 2030
Database
ISI
SICI code
0011-4626(1996)46:<2029:DFITCM>2.0.ZU;2-R
Abstract
The magnetoresistivity up to 12 T of YBa2Cu3O7-delta has been measured with B//I//c from T-c + 3 K to T-c + 40 K. A change of sign was obser ved, from positive near T-c to negative at temperatures above approxim ately T-c + 10 K. This previously not reported change of sign can be e xplained by recent fluctuation theories that include fluctuations in t he normal density of states (DOS).