M. Giannouri et al., WEAK-LOCALIZATION, ASLAMAZOV-LARKIN, AND MAKI-THOMPSON SUPERCONDUCTING FLUCTUATION EFFECTS IN DISORDERED ZR1-XRHX FILMS ABOVE T-C, Physical review. B, Condensed matter, 56(10), 1997, pp. 6148-6156
The transverse magnetoresistance of disordered Zr1-xRhx thin films has
been measured above the superconducting transition temperature T-c as
a function of temperature in a magnetic field up to 60 kG. The invest
igated films are disordered enough to indicate quantum corrections due
to localization and electron-electron interaction effects. The field
and temperature dependence of the observed magnetoresistance is interp
reted in terms of weak-localization, Aslamazov-Larkin, and Maki-Thomps
on superconducting fluctuations effects. From the comparison of the ex
perimental results with theoretical calculations, the electron-electro
n attraction strength, beta(T/T-c), is derived and is in good agreemen
t with Larkin's theory. The total phase-breaking rate tau(phi)(-1) has
been estimated and ascribed to electron-phonon, electron-electron, el
ectron-fluctuation, and spin-flip scattering mechanisms.