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Magnetic Properties Of Tdae-C60: Remanence and Relaxation

Published online by Cambridge University Press:  10 February 2011

M. Tokumoto ,
Y. S. Song ,
K. Tanaka ,
T. Sato  and
T. Yamabe
M. Tokumoto
Affiliation:
Electrotechnical Laboratory, Tsukuba, Ibaraki 305, Japan
Y. S. Song
Affiliation:
Electrotechnical Laboratory, Tsukuba, Ibaraki 305, Japan
K. Tanaka
Affiliation:
Kyoto University, Division of Molecular Engineering, Kyoto, Japan
T. Sato
Affiliation:
Kyoto University, Division of Molecular Engineering, Kyoto, Japan
T. Yamabe
Affiliation:
Kyoto University, Division of Molecular Engineering, Kyoto, Japan
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Abstract

Precise measurements of low-field magnetization of TDAE-C60 (TDAE; tetrakis(dimethylamino)ethylene) by SQUID magnetometer revealed a clear “remanence” or “irreversibility”, i.e. difference in the temperature dependence between zero-field cooled (ZFC) and field cooled (FC) conditions below the freezing temperature Tf around 10 K. Also, an extremely slow relaxation phenomena of magnetization was observed. These “glassy” characteristics are reminiscent of a “spin-glass” with Tf at about 10 K as the nature of the magnetic ground state of TDAE-C60.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 413: Symposium W – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials III , 1995 , 333
Copyright
Copyright © Materials Research Society 1996

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References

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