engleski

Uniaxial strain study in purely organic ferromagnet alpha-TDAE-C-60 - Mechanism and structure

SR has been carried Out ill ferromagnetic alpha-TDAE-C-60 under uniaxial strain to Study the mechanism and Structure of ferromagnetism. Pressure is applied to a single crystal embedded in epoxy resin with a clamp type pressure cell. A preliminary study demonstrates that the uniaxial strain induces a change of the Curie temperature T-C, which depends on the crystal axis where the uniaxial strain applied. It is Suggested that these preliminary results seem to be consistent with the Kawamoto's model (T. Kawamoto, M. Tokumoto, H. Sakamoto, K. Mizoguchi, J. Phys. Soc. Jpn. 70 (2001) 1892.) based oil an intermolecular cooperative Jahn- Teller distortion. Further systematic studies will make clear the mechanism of the ferromagnetism. (c) 2005 Elsevier Ltd. All rights reserved.

organic ferromagnetism ; uniaxial strain ; ESR ; curie temperature ; TDAE-C60

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