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 to 100 K and in magnetic fields up to 18 T. For T>4.2K , two different electronlike charge carriers originating from two electron channels which contribute to transport are observed. We probe the contributions of a degenerate and a nondegenerate 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.
|Journal||Physical Review B (Condensed Matter and Materials Physics)|
|Publication status||Published - 2015|
Jost, A., Guduru, V. K., Wiedmann, S., Maan, J. C., Zeitler, U., Wenderich, S., ... Hilgenkamp, J. W. M. (2015). Transport and thermoelectric properties of the LaAlO3/SrTiO3 interface. Physical Review B (Condensed Matter and Materials Physics), 91(045304), -. . https://doi.org/10.1103/PhysRevB.91.045304