Transport and thermoelectric properties of the LaAlO$_3$/SrTiO$_3$ interface
| Autor: | Jost, A., Guduru, V. K., Wiedmann, S., Maan, J. C., Zeitler, U., Wenderich, S., Brinkman, A., Hilgenkamp, H. |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Phys. Rev. B 91, 045304 (2015) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.91.045304 |
| Popis: | The transport and thermoelectric properties of the interface between SrTiO$_3$ and a 26-monolayer thick LaAlO$_3$-layer grown at high oxygen-pressure have been investigated at temperatures from 4.2 K to 100 K and in magnetic fields up to 18 T. For $T>$ 4.2 K, two different electron-like charge carriers originating from two electron channels which contribute to transport are observed. We probe the contributions of a degenerate and a non-degenerate band to the thermoelectric power and develop a consistent model to describe the temperature dependence of the thermoelectric tensor. Anomalies in the data point to an additional magnetic field dependent scattering. Comment: 7 pages, 4 figures |
| Databáze: | arXiv |
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