TY - JOUR
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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U2 - 10.1088/0953-8984/9/6/012
DO - 10.1088/0953-8984/9/6/012
M3 - Article
AN - SCOPUS:5544328105
SN - 0953-8984
VL - 9
SP - 1261
EP - 1265
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 6
ER -