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Transport properties of localized states in Bi2Sr2CuO6 single crystals

✍ Scribed by Katsuhiko Inagaki; Kazuhiko Yamaya; Satoshi Tanda

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 221 KB
Volume: 263
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(96)00084-6

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✦ Synopsis

Transport properties, such as electric conductivity, magnetoresistance, and Hall coefficient are measured in Bi 2Sr2CuO6 single crystals. The conductivity drops at low temperature proportional to log T. This behavior is interpreted as the weakly localized regime of Anderson localization, since we observe log T, log E and log H dependences of the conductivity. The coefficients of log T and log E come close to the expected values by treating the sample as consisting of stacked two-dimensional conduction planes. However, the coefficient of log H is much less than the universal value which is expected from theories of the weakly localized regime. From the results of Hall measurement, we show that electron-electron interaction does not play a major role.

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