Superconductivity in Indium Diffused GaAs
J.M. Baranowski, P. Wójcik
Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warszawa, Poland

M. Palczewska, R. Jabłoński
Institute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warszawa, Poland

E.R. Weber, W.F. Yau, H. Sohn and P. Werner
Department of Materials Science, University of California, Berkeley, CA 94720, USA and Materials Science Division, Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA
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Superconductivity of indium diffused GaAs was investigated. The superconductivity in these samples was identified by the magnetic susceptibility and the characteristic field modulated microwave absorption. The static magnetic susceptibility was measured from 40 K down to 2.5 K. The result shows two distinctive diamagnetic contributions within 7 K-2.5 K range. These diamagnetic contributions were correlated with the excess of In and Ga metal in GaAs.
DOI: 10.12693/APhysPolA.82.670
PACS numbers: 74.70.Mq, 76.20.+q