Six-fold crystalline anisotropic magnetoresistance in the (111) LaAlO3/ SrTiO3 oxide interface

P. K. Rout; I. Agireen; E. Maniv; M. Goldstein; Y. Dagan

doi:10.1103/PhysRevB.95.241107

Six-fold crystalline anisotropic magnetoresistance in the (111) LaAlO3/ SrTiO3 oxide interface

P. K. Rout, I. Agireen, E. Maniv, M. Goldstein, Y. Dagan

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

36 Scopus citations

Abstract

We measured the magnetoresistance of the 2D electron liquid formed at the (111) LaAlO3/SrTiO3 interface. The hexagonal symmetry of the interface is manifested in a six-fold crystalline component appearing in the anisotropic magnetoresistance (AMR) and planar Hall data, which agree well with symmetry analysis we performed. The six-fold component increases with carrier concentration, reaching 15% of the total AMR signal. Our results suggest the coupling between higher itinerant electronic bands and the crystal as the origin of this effect and demonstrate that the (111) oxide interface is a unique hexagonal system with tunable magnetocrystalline effects.

Original language	English
Article number	241107
Journal	Physical Review B
Volume	95
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevB.95.241107
State	Published - 9 Jun 2017
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.95.241107

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title = "Six-fold crystalline anisotropic magnetoresistance in the (111) LaAlO3/ SrTiO3 oxide interface",

abstract = "We measured the magnetoresistance of the 2D electron liquid formed at the (111) LaAlO3/SrTiO3 interface. The hexagonal symmetry of the interface is manifested in a six-fold crystalline component appearing in the anisotropic magnetoresistance (AMR) and planar Hall data, which agree well with symmetry analysis we performed. The six-fold component increases with carrier concentration, reaching 15% of the total AMR signal. Our results suggest the coupling between higher itinerant electronic bands and the crystal as the origin of this effect and demonstrate that the (111) oxide interface is a unique hexagonal system with tunable magnetocrystalline effects.",

author = "Rout, {P. K.} and I. Agireen and E. Maniv and M. Goldstein and Y. Dagan",

note = "Funding Information: This work has been supported by the Israel Science Foundation (Grants No. 569/13 and No.227/15), the Israel Ministry of Science and Technology (Contracts No.3-11875 and No.3-12419), and the Pazy Foundation (Contract No.268/17). P.K.R. acknowledges support from the Center for Nanosciences at Tel Aviv University. M.G. acknowledge the German-Israeli Science Foundation (Grant No. I-1259-303.10/2014), and the US-Israel Binational Science Foundation (Grant No. 2014262). Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

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doi = "10.1103/PhysRevB.95.241107",

language = "English",

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AU - Rout, P. K.

AU - Agireen, I.

AU - Maniv, E.

AU - Goldstein, M.

AU - Dagan, Y.

N1 - Funding Information: This work has been supported by the Israel Science Foundation (Grants No. 569/13 and No.227/15), the Israel Ministry of Science and Technology (Contracts No.3-11875 and No.3-12419), and the Pazy Foundation (Contract No.268/17). P.K.R. acknowledges support from the Center for Nanosciences at Tel Aviv University. M.G. acknowledge the German-Israeli Science Foundation (Grant No. I-1259-303.10/2014), and the US-Israel Binational Science Foundation (Grant No. 2014262). Publisher Copyright: © 2017 American Physical Society.

PY - 2017/6/9

Y1 - 2017/6/9

N2 - We measured the magnetoresistance of the 2D electron liquid formed at the (111) LaAlO3/SrTiO3 interface. The hexagonal symmetry of the interface is manifested in a six-fold crystalline component appearing in the anisotropic magnetoresistance (AMR) and planar Hall data, which agree well with symmetry analysis we performed. The six-fold component increases with carrier concentration, reaching 15% of the total AMR signal. Our results suggest the coupling between higher itinerant electronic bands and the crystal as the origin of this effect and demonstrate that the (111) oxide interface is a unique hexagonal system with tunable magnetocrystalline effects.

AB - We measured the magnetoresistance of the 2D electron liquid formed at the (111) LaAlO3/SrTiO3 interface. The hexagonal symmetry of the interface is manifested in a six-fold crystalline component appearing in the anisotropic magnetoresistance (AMR) and planar Hall data, which agree well with symmetry analysis we performed. The six-fold component increases with carrier concentration, reaching 15% of the total AMR signal. Our results suggest the coupling between higher itinerant electronic bands and the crystal as the origin of this effect and demonstrate that the (111) oxide interface is a unique hexagonal system with tunable magnetocrystalline effects.

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ER -

Six-fold crystalline anisotropic magnetoresistance in the (111) LaAlO3/ SrTiO3 oxide interface

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