Transport and thermoelectric properties of the LaAlO3/SrTiO3 interface

A. Jost, V.K. Guduru, S. Wiedmann, J.C. Maan, U. Zeitler, Sander Wenderich, Alexander Brinkman, Johannes W.M. Hilgenkamp

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Abstract

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.
Original languageEnglish
Article number045304
Pages (from-to)-
JournalPhysical Review B (Condensed Matter and Materials Physics)
Volume91
Issue number045304
DOIs
Publication statusPublished - 2015

Fingerprint

transport properties
Magnetic fields
high pressure oxygen
Thermoelectric power
Charge carriers
magnetic fields
Tensors
charge carriers
Monolayers
tensors
Scattering
anomalies
Oxygen
Temperature
temperature dependence
Electrons
probes
scattering
electrons
temperature

Keywords

  • METIS-312320
  • IR-97776

Cite this

Jost, A. ; Guduru, V.K. ; Wiedmann, S. ; Maan, J.C. ; Zeitler, U. ; Wenderich, Sander ; Brinkman, Alexander ; Hilgenkamp, Johannes W.M. / Transport and thermoelectric properties of the LaAlO3/SrTiO3 interface. In: Physical Review B (Condensed Matter and Materials Physics). 2015 ; Vol. 91, No. 045304. pp. -.
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Transport and thermoelectric properties of the LaAlO3/SrTiO3 interface. / Jost, A.; Guduru, V.K.; Wiedmann, S.; Maan, J.C.; Zeitler, U.; Wenderich, Sander; Brinkman, Alexander; Hilgenkamp, Johannes W.M.

In: Physical Review B (Condensed Matter and Materials Physics), Vol. 91, No. 045304, 045304, 2015, p. -.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Transport and thermoelectric properties of the LaAlO3/SrTiO3 interface

AU - Jost, A.

AU - Guduru, V.K.

AU - Wiedmann, S.

AU - Maan, J.C.

AU - Zeitler, U.

AU - Wenderich, Sander

AU - Brinkman, Alexander

AU - Hilgenkamp, Johannes W.M.

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Y1 - 2015

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AB - 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.

KW - METIS-312320

KW - IR-97776

U2 - 10.1103/PhysRevB.91.045304

DO - 10.1103/PhysRevB.91.045304

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JO - Physical review B: Covering condensed matter and materials physics

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