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Fermi Surface and Magnetoresistance in an Organic Metal β″ -(BEDT-TTF)2AuBr2

Published online by Cambridge University Press:  16 February 2011

S. Uji ,
H. Aoki ,
M. Tokumoto ,
A. Ugawa  and
K. YakushP
S. Uji
Affiliation:
National Research Institute for Metals, Nakameguro, Meguro-ku, Tokyo 13, Japan
H. Aoki
Affiliation:
National Research Institute for Metals, Nakameguro, Meguro-ku, Tokyo 13, Japan
M. Tokumoto
Affiliation:
Electrotechnical Laboratory, Tsukuba Ibaraki 305, Japan
A. Ugawa
Affiliation:
Institute for Molecular Science, Myodaiji, Okazaki 444, Japan
K. YakushP
Affiliation:
Institute for Molecular Science, Myodaiji, Okazaki 444, Japan
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Abstract

The Shubnikov-de Haas (SdH) and Magnetoresistance Measurements have been performed in an organic Metal β″ (BEDT-TTF)2AuBr2. Absence of saturation in the magnetoresistance up to 13T suggests that this salt is a compensated Metal. The SdH oscillations are consistently understood by assuming that three cylindrical Fermi surfaces are present. The frequencies of the SdH oscillations corresponding to the Fermi surfaces are determined to be 41.5 T, 139 T, and 181 T for H//b*-axis. An anomalous maximum in the resistance is found at about 9.5 K for H//b*-axis although no anomaly is observed for H//plane.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 328: Symposium Q – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials , 1993 , 337
Copyright
Copyright © Materials Research Society 1994

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References

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