Thermoelectric power and carrier concentration of La2?xSrxCuO4(0.03 <x <0.17) single crystals |
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Authors: | Zhao Yanli Xu Zhu’an Zhang Xuanjia Jiao Zhengkuan |
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Institution: | Department of Physics, Zhejiang University, Hangzhou 310027, China |
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Abstract: | Thermoelectric power (S) measurements have been systematically investigated in high-quality La2-x-Srx-CuO4 single crystals with different Sr concentrations (x =0.03, 0.05, 0.07, 0.1, 0.12). In this doping range studied, S remains positive, and with the increase of Sr concentration,room-temperature thermoelectric power S (290 K) decreases.An empirical formula which presents a relationship between hole concentration P and room-temperature thermoelectric power S (290 K) is reported in this note. Based on the theory of metallic diffusion model, the experimental results are discussed. |
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Keywords: | La2-xSrxCuO4 single crystals(LSCO) thermoelectric power hole concentration |
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