Volume 58, Number 1, April 2002
|Page(s)||105 - 111|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 August 2002|
Transport properties of the underdoped films in high magnetic fields
National Laboratory for Superconductivity
Institute of Physics & Center
for Condensed Matter Physics Chinese Academy of Sciences -
Beijing 100080, PRC
2 Laboratorium voor Vaste-Stoffysica en Magnetisme, Katholieke Universiteit Leuven Celestijnenlaan 200 D, B-3001 Leuven, Belgium
Corresponding authors: email@example.com firstname.lastname@example.org Victor.Moshchalkov@fys.kuleuven.ac.be
Accepted: 10 January 2002
The effect of magnetic field and disorder on the transport properties of the underdoped films has been investigated in a broad temperature range in magnetic fields up to 50. In ultrathin films with strong disorder, where the mean free path l corresponds to , a convincing power law resistivity vs. temperature (–0.39) is observed in a very broad temperature range –40. However, in superconducting thicker films with much weaker disorder ( in normal state), the high magnetic field, by suppressing superconductivity, recovers the normal-state transport behavior with the -dependence at low temperature in field. The two different transport behaviors indicate that the normal-state transport properties of the underdoped cuprates are very sensitive not only to the hole concentration but also to the degree of the disorder.
PACS: 74.25.Fy – Transport properties (electric and thermal conductivity, thermoelectric effects, etc.) / 74.76.Bz – High- films / 74.72.Bk – Y-based cuprates
© EDP Sciences, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.