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Formation of Two-Dimensional Electronic System and Weak Localization in Conducting Langmuir-Blodgett Film of BEDO-TTF with Stearic Acid

Published online by Cambridge University Press:  21 March 2011

Yasuo Ishizaki
Affiliation:
Laboratory of Applied Physics, Tokyo University of Mercantile Marine, 2-1-6 Etchu-jima, Koto-ku, Tokyo 138-8533, Japan
Makoto Suzuki
Affiliation:
Laboratory of Applied Physics, Tokyo University of Mercantile Marine, 2-1-6 Etchu-jima, Koto-ku, Tokyo 138-8533, Japan
Hitoshi Ohnuki
Affiliation:
Laboratory of Applied Physics, Tokyo University of Mercantile Marine, 2-1-6 Etchu-jima, Koto-ku, Tokyo 138-8533, Japan
Tatsuro Imakubo
Affiliation:
Condensed Molecular Materials Laboratory, Riken, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
Mitsuru Izumi
Affiliation:
Laboratory of Applied Physics, Tokyo University of Mercantile Marine, 2-1-6 Etchu-jima, Koto-ku, Tokyo 138-8533, Japan
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Abstract

The organic highly conducting Langmuir-Blodgett (LB) film formed by a molecular association of BEDO-TTF and stearic acid shows the logarithmic decrease of DC conductivity and negative magnetoresistance at low temperature. These data are interpreted by the weak localization of two-dimensional (2D) electronic system inside the homogeneous conducting layer of BEDO-TTF molecules. The electronic length with phase memory has a mesoscopic scale. Strong evidence of the 2D coherent charge transport in the conducting LB film is provided for the first time.

Type
Research Article
Copyright
Copyright © Materials Research Society 2001

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References

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