Large magnetoresistance of insulating silicon films with superconducting nanoprecipitates

We report on large negative and positive magnetoresistance in inhomogeneous, insulating Si:Ga films below a critical temperature of about 7 K. The magnetoresistance effect exceeds 300 % at temperatures below 3 K and fields of 8 T. The comparison of the transport properties of superconducting samples...

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Bibliographic Details
Main Authors: V. Heera, J. Fiedler, W. Skorupa
Format: Article
Language:English
Published: AIP Publishing LLC 2016-10-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4964931