Weak-localization, Aslamazov-Larkin, and Maki-Thompson superconducting fluctuation effects in disordered Zr1−xRhx films above Tc

M. Giannouri; E. Rocofyllou; C. Papastaikoudis; W. Schilling

doi:10.1103/PhysRevB.56.6148

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Weak-localization, Aslamazov-Larkin, and Maki-Thompson superconducting fluctuation effects in disordered Zr1−xRhx films above Tc

M. Giannouri, E. Rocofyllou, C. Papastaikoudis, W. Schilling

DOI 10.1103/PhysRevB.56.6148 · Physical Review B

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Abstract

The transverse magnetoresistance of disordered Zr1−xRhx thin films has been measured above the superconducting transition temperature Tc as a function of temperature in a magnetic field up to 60 kG. The investigated 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 interpreted in terms of weak-localization, Aslamazov-Larkin, and Maki-Thompson superconducting fluctuations effects. From the comparison of the experimental results with theoretical calculations, the electron-electron attraction strength, β(T/Tc), is derived and is in good agreement with Larkin’s theory. The total phase- breaking rate τφ−1 has been estimated and ascribed to electron-phonon, electron-electron, electron-fluctuation, and spin-flip scattering mechanisms.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Zr75Rh25 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	2.85	Pressure not reported	unknown
Zr75Rh25 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	2.76	Pressure not reported	unknown
Zr75Rh25 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	2.41	Pressure not reported	unknown
Zr87Rh13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	3.39	Pressure not reported	unknown
Zr87Rh13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	3.4	Pressure not reported	unknown
Zr61Rh39 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.3	Pressure not reported	unknown
Zr61Rh39 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.5	Pressure not reported	unknown