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Effect of Chemical Potential on Thermoelectric Power of Bi2Te3 and Bi2Se3

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Fig. 3Thermoelectric power of the Bi2Te3 and Bi2Se3. The sign of thethermoelectric power of Bi2Te3/Bi2Se3 is kept positive/negative over thewhole temperature range, and Bi2Te3/Bi2Se3 is unambiguously regardedas the p-type/n-type thermoelectric material.
Fig. 4ARPES spectra of Bi2Te3 and Bi2Se3 measured at temperature drawn in the figures. Energy-momentum dispersion is clearlyobservable
Fig. 5Energy-momentum dispersion extracted from the ARPES spectra for (a) the p-type Bi2Te3 and (b) the n-type Bi2Se3
Fig. 6The models of (a) electronic density of states and (b) spectral conductivity that represent the characteristics of those for the presentBi2Se3

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