Angular dependence of the magnetoresistance of the SrTiO 3/LaAlO3 interface

S. Seri; E. Shimshoni; S. Paetel; J. Mannhart; L. Klein

doi:10.1109/tmag.2010.2042687

Angular dependence of the magnetoresistance of the SrTiO ₃/LaAlO₃ interface

S. Seri, E. Shimshoni, S. Paetel, J. Mannhart, L. Klein

Department of Physics

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We study the magnetoresistance (MR) of the quasi-2-D electron liquid at the interface that forms between SrTiO₃and LaAlO₃as a function of the magnitude and orientation of the magnetic field. We find that at T ≥ 60 K, the MR is described by a+b cos²θ+c sin ²θ cos² φ, where θ is the angle between the field and the film normal and φ is the angle between the in-plane component of the field and the current. For θ=0° (field perpendicular to the plane), we show that the MR obeys Kohler's rule while for θ=90° (field in the plane) the MR is significantly smaller, and it is almost temperature independent, suggesting it is dominated by interface scattering.

Original language	English
Article number	5467683
Pages (from-to)	1630-1632
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	46
Issue number	6
DOIs	https://doi.org/10.1109/tmag.2010.2042687
State	Published - Jun 2010

Bibliographical note

Funding Information:
This work was supported by the German Israeli Foundation (Grant 979/2007). E. Shimshoni was supported by the Ministry of Science and Technology (Grant 3-5792). L. Klein was supported by the Israel Science Foundation founded by the Israel Academy of Sciences and Humanities (Grant 577/07).

Funding

This work was supported by the German Israeli Foundation (Grant 979/2007). E. Shimshoni was supported by the Ministry of Science and Technology (Grant 3-5792). L. Klein was supported by the Israel Science Foundation founded by the Israel Academy of Sciences and Humanities (Grant 577/07).

Funders	Funder number
German Israeli Foundation	979/2007
Israel Academy of Sciences and Humanities	577/07
Israel Science Foundation
Ministry of science and technology, Israel	3-5792

Keywords

2-D electron liquid
Interface phenomena
Kohler's rule
Magnetoresistance

Access to Document

10.1109/tmag.2010.2042687

Cite this

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title = "Angular dependence of the magnetoresistance of the SrTiO 3/LaAlO3 interface",

abstract = "We study the magnetoresistance (MR) of the quasi-2-D electron liquid at the interface that forms between SrTiO3and LaAlO3as a function of the magnitude and orientation of the magnetic field. We find that at T ≥ 60 K, the MR is described by a+b cos2θ+c sin 2θ cos2 φ, where θ is the angle between the field and the film normal and φ is the angle between the in-plane component of the field and the current. For θ=0° (field perpendicular to the plane), we show that the MR obeys Kohler's rule while for θ=90° (field in the plane) the MR is significantly smaller, and it is almost temperature independent, suggesting it is dominated by interface scattering.",

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author = "S. Seri and E. Shimshoni and S. Paetel and J. Mannhart and L. Klein",

note = "Funding Information: This work was supported by the German Israeli Foundation (Grant 979/2007). E. Shimshoni was supported by the Ministry of Science and Technology (Grant 3-5792). L. Klein was supported by the Israel Science Foundation founded by the Israel Academy of Sciences and Humanities (Grant 577/07).",

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AU - Seri, S.

AU - Shimshoni, E.

AU - Paetel, S.

AU - Mannhart, J.

AU - Klein, L.

N1 - Funding Information: This work was supported by the German Israeli Foundation (Grant 979/2007). E. Shimshoni was supported by the Ministry of Science and Technology (Grant 3-5792). L. Klein was supported by the Israel Science Foundation founded by the Israel Academy of Sciences and Humanities (Grant 577/07).

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N2 - We study the magnetoresistance (MR) of the quasi-2-D electron liquid at the interface that forms between SrTiO3and LaAlO3as a function of the magnitude and orientation of the magnetic field. We find that at T ≥ 60 K, the MR is described by a+b cos2θ+c sin 2θ cos2 φ, where θ is the angle between the field and the film normal and φ is the angle between the in-plane component of the field and the current. For θ=0° (field perpendicular to the plane), we show that the MR obeys Kohler's rule while for θ=90° (field in the plane) the MR is significantly smaller, and it is almost temperature independent, suggesting it is dominated by interface scattering.

AB - We study the magnetoresistance (MR) of the quasi-2-D electron liquid at the interface that forms between SrTiO3and LaAlO3as a function of the magnitude and orientation of the magnetic field. We find that at T ≥ 60 K, the MR is described by a+b cos2θ+c sin 2θ cos2 φ, where θ is the angle between the field and the film normal and φ is the angle between the in-plane component of the field and the current. For θ=0° (field perpendicular to the plane), we show that the MR obeys Kohler's rule while for θ=90° (field in the plane) the MR is significantly smaller, and it is almost temperature independent, suggesting it is dominated by interface scattering.

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