Low-temperature transport properties of Nb1-xTax thin films

Citation
M. Giannouri et al., Low-temperature transport properties of Nb1-xTax thin films, PHYS REV B, 59(6), 1999, pp. 4463-4469
Citations number
31
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
59
Issue
6
Year of publication
1999
Pages
4463 - 4469
Database
ISI
SICI code
0163-1829(19990201)59:6<4463:LTPONT>2.0.ZU;2-F
Abstract
Detailed measurements of the transverse magnetoresistance of disordered Nb1 -xTax thin flms were performed above the transition temperature T-c as a fu nction of temperature and magnetic field. The temperature dependence of the observed magnetoresistance is interpreted in terms of weak localization an d superconducting fluctuations. Besides the weak localization, the Aslamazo v-Larkin and the Maki-Thompson-Larkin fluctuations processes were included into the fitting procedure. Values of Larkin electron-electron interaction strength parameter beta(L)(T) and the total phase-breaking rate tau(phi)(-1 ) were obtained from the magnetoresistance fits.