C.C. Tsuei, H.R. Lilienthal
Physical Review B
Paper
Negative Magnetoresistance in Amorphous 3D Superconducting Films at High (up to 30 T) Magnetic Fields
Abstract
The superconducting transition in amorphous Mo3Si and Nb3Ge films (as tracked by the resistivity-vsmagnetic field measurements) is followed by a resistivity decrease at further increase of the field H up to 30 T. The high-field resistivity increases on cooling and flattens out at low temperatures. This behavior is attributed to the destructive influence of both magnetic field and temperature on the interference effects. A possible relation between the negative magnetoresistance and the superconductivity is discussed.
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