Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1516088 | Journal of Physics and Chemistry of Solids | 2012 | 5 Pages |
This paper presents ambient and high pressure measurements of transport properties of the Bi2Te3–Sb2Te3 series of materials. The electrical resistivity, thermal conductivity, and Seebeck coefficient have been measured on both end compounds and the direct solid solution of the two at pressure up to 10 GPa. An additional discussion involving the high pressure structure will be presented. From this, it was determined that these materials undergo at least two structural phase transitions between 0 and 20 GPa and a discussion is presented regarding this and the changes in the transport properties.
► We measure the high pressure transport properties of Bi2Te3 based materials. ► Increasing pressure is likely to induce a Landau transition in Bi2Te3. ► Increasing pressure does not show substantial improvement in figure of merit. ► Landau transition restores Bi2Te3 to original figure of merit.