Anomalous suppression of the vortex hall current in underdoped YBa2Cu3Ox

Authors
Xu, ZA Huang, YX Zhao, YL Zhang, XJ Jiao, ZK
Citation
Za. Xu et al., Anomalous suppression of the vortex hall current in underdoped YBa2Cu3Ox, CHIN PHYS L, 18(9), 2001, pp. 1258-1260
Citations number
26
Categorie Soggetti
Physics
Journal title
CHINESE PHYSICS LETTERS
ISSN journal
0256307X → ACNP
Volume
18
Issue
9
Year of publication
2001
Pages
1258 - 1260
Database
ISI
SICI code
0256-307X(200109)18:9<1258:ASOTVH>2.0.ZU;2-T
Abstract
The transport properties of underdoped YBa2Cu3Ox. (YBCO) crystals with x = 6.95, 6.80 and 6.66 were measured and the effect of the pseudogap on the Ha ll conductivity was studied. In the normal state, the Hall angle remains un perturbed at the crossover temperature of resistivity for the underdoped sa mples. An anomalous suppression of the vortex Hall current was observed nea r T. and the contribution of the vortices to the Hall current is absent abo ve 40 K in 60 K YBCO (x = 6.66).