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TEMPERATURE DEPENDENT MAGNETO-TRANSPORT STUDIES IN FERROMAGNETIC GE(1-X)MN(X)TE WITH HIGH MN COMPOSITION
Journal article   Peer reviewed

TEMPERATURE DEPENDENT MAGNETO-TRANSPORT STUDIES IN FERROMAGNETIC GE(1-X)MN(X)TE WITH HIGH MN COMPOSITION

S. T. Lim, C. H. Sim, W. Q. Chen, J. F. Bi, K. L. Teo, T. Liew and T. C. Chong
International journal of modern physics. B, Condensed matter physics, statistical physics, applied physics, Vol.23(17), pp.3591-3595
10/07/2009

Abstract

Physical Sciences Physics Physics, Applied Physics, Condensed Matter Physics, Mathematical Science & Technology
We investigate the magneto-transport behaviour of Ge1-xMnxTe (x = 0.98) grown by solid-source molecular-beam epitaxy. The magnetization curves measured in different field orientations show that part of the magnetic moments lies out-of-plane, and becomes enhanced as temperature increases. A transition from negative to positive magnetoresistance (MR) was observed at T >= 95 K in the MR measurements with field applied perpendicular to sample plane. This transition temperature corresponds to our measured Curie temperature T-C similar to 95 K.

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