The anomalous thermoelectric power of the La doped Bi-2201 phase

Xu Gaojie; Mao Zhiqiang; Wang Ruiping; Tian Mingliang; Zhang Yuheng

doi:10.1088/0953-8984/9/6/012

The anomalous thermoelectric power of the La doped Bi-2201 phase

Xu Gaojie, Mao Zhiqiang, Wang Ruiping, Tian Mingliang, Zhang Yuheng

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Abstract

Samples of the Bi_1.9Sr_1.6La_0.4CuO_y system with different oxygen contents have Obtained by annealing the as-grown samples at different and oxygen partial pressures. The results of resistivity and thermoelectric power (TEP) measurements of these samples are reported here. Some anomalous phenomena in transport for the underdoped samples of Bi_1.9Sr_1.6La_0.4CuO_y were observed, i.e., below a characteristic temperature, the TEP exhibits a significant enhancement and the temperature dependence of the resistivity deviates downward from linearity. These results imply that a ,pu. gap exists in the La doped Bi-2201 system By comparison with the results reported previously, we suggest that the microstructural characteristics are another important factor in determining the spin excitation spectrum.

Original language	English (US)
Pages (from-to)	1261-1265
Number of pages	5
Journal	Journal of Physics Condensed Matter
Volume	9
Issue number	6
DOIs	https://doi.org/10.1088/0953-8984/9/6/012
State	Published - Feb 10 1997

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics

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title = "The anomalous thermoelectric power of the La doped Bi-2201 phase",

abstract = "Samples of the Bi1.9Sr1.6La0.4CuOy system with different oxygen contents have Obtained by annealing the as-grown samples at different and oxygen partial pressures. The results of resistivity and thermoelectric power (TEP) measurements of these samples are reported here. Some anomalous phenomena in transport for the underdoped samples of Bi1.9Sr1.6La0.4CuOy were observed, i.e., below a characteristic temperature, the TEP exhibits a significant enhancement and the temperature dependence of the resistivity deviates downward from linearity. These results imply that a ,pu. gap exists in the La doped Bi-2201 system By comparison with the results reported previously, we suggest that the microstructural characteristics are another important factor in determining the spin excitation spectrum.",

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T1 - The anomalous thermoelectric power of the La doped Bi-2201 phase

AU - Gaojie, Xu

AU - Zhiqiang, Mao

AU - Ruiping, Wang

AU - Mingliang, Tian

AU - Yuheng, Zhang

PY - 1997/2/10

Y1 - 1997/2/10

N2 - Samples of the Bi1.9Sr1.6La0.4CuOy system with different oxygen contents have Obtained by annealing the as-grown samples at different and oxygen partial pressures. The results of resistivity and thermoelectric power (TEP) measurements of these samples are reported here. Some anomalous phenomena in transport for the underdoped samples of Bi1.9Sr1.6La0.4CuOy were observed, i.e., below a characteristic temperature, the TEP exhibits a significant enhancement and the temperature dependence of the resistivity deviates downward from linearity. These results imply that a ,pu. gap exists in the La doped Bi-2201 system By comparison with the results reported previously, we suggest that the microstructural characteristics are another important factor in determining the spin excitation spectrum.

AB - Samples of the Bi1.9Sr1.6La0.4CuOy system with different oxygen contents have Obtained by annealing the as-grown samples at different and oxygen partial pressures. The results of resistivity and thermoelectric power (TEP) measurements of these samples are reported here. Some anomalous phenomena in transport for the underdoped samples of Bi1.9Sr1.6La0.4CuOy were observed, i.e., below a characteristic temperature, the TEP exhibits a significant enhancement and the temperature dependence of the resistivity deviates downward from linearity. These results imply that a ,pu. gap exists in the La doped Bi-2201 system By comparison with the results reported previously, we suggest that the microstructural characteristics are another important factor in determining the spin excitation spectrum.

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The anomalous thermoelectric power of the La doped Bi-2201 phase

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