Spin-Dependent Transport in C60–Co Nano-Composites

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Published 14 July 2006 Copyright (c) 2006 The Japan Society of Applied Physics
, , Citation Shinji Miwa et al 2006 Jpn. J. Appl. Phys. 45 L717 DOI 10.1143/JJAP.45.L717

1347-4065/45/7L/L717

Abstract

C60–Co nano-composites, in which Co nano-particles are embedded in C60 molecules, have been fabricated and a magnetoresistance (MR) ratio of 8% has been observed at T = 4.2 K. In addition, we have succeeded in observing a clear MR curve even at room temperature (RT). The MR effect is ascribed to magnetization of the Co nano-particles and spin-dependent transport in C60 molecules. This study directly indicates that RT operation of molecular spin devices can be realized.

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10.1143/JJAP.45.L717