| Autor: |
Mikheev, Evgeny, Himmetoglu, Burak, Kajdos, Adam P., Moetakef, Pouya, Cain, Tyler A., Van de Walle, Chris G., Stemmer, Susanne |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 2/9/2015, Vol. 106 Issue 6, p1-4, 4p, 3 Graphs |
| Abstrakt: |
We analyze and compare the temperature dependence of the electron mobility of two- and three-dimensional electron liquids in SrTiO3. The contributions of electron-electron scattering must be taken into account to accurately describe the mobility in both cases. For uniformly doped, three-dimensional electron liquids, the room temperature mobility crosses over from longitudinal optical (LO) phonon-scattering-limited to electron-electron-scattering-limited as a function of carrier density. In high-density, two-dimensional electron liquids, LO phonon scattering is completely screened and the mobility is dominated by electron-electron scattering up to room temperature. The possible origins of the observed behavior and the consequences for approaches to improve the mobility are discussed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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