Interface ferromagnetism and orbital reconstruction in BiFeO 3-La0.7Sr0.3MnO3 heterostructures

P. Yu; J. S. Lee; S. Okamoto; M. D. Rossell; M. Huijben; C. H. Yang; Q. He; J. X. Zhang; S. Y. Yang; M. J. Lee; Q. M. Ramasse; R. Erni; Y. H. Chu; D. A. Arena; C. C. Kao; L. W. Martin; R. Ramesh

doi:10.1103/PhysRevLett.105.027201

Interface ferromagnetism and orbital reconstruction in BiFeO ₃-La0.7Sr0.3MnO₃ heterostructures

P. Yu
, J. S. Lee
, S. Okamoto
, M. D. Rossell
, M. Huijben
, C. H. Yang
, Q. He
, J. X. Zhang
, S. Y. Yang
, M. J. Lee
, Q. M. Ramasse
, R. Erni
, Y. H. Chu
, D. A. Arena
, C. C. Kao
, L. W. Martin
, R. Ramesh

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

367 Scopus citations

Abstract

We report the formation of a novel ferromagnetic state in the antiferromagnet BiFeO₃ at the interface with ferromagnet La0.7Sr0.3MnO₃. Using x-ray magnetic circular dichroism at Mn and Fe L2,3 edges, we discovered that the development of this ferromagnetic spin structure is strongly associated with the onset of a significant exchange bias. Our results demonstrate that the magnetic state is directly related to an electronic orbital reconstruction at the interface, which is supported by the linearly polarized x-ray absorption measurement at the oxygen K edge.

Original language	English
Article number	027201
Journal	Physical Review Letters
Volume	105
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.105.027201
State	Published - Jul 6 2010

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10.1103/PhysRevLett.105.027201

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Yu, P., Lee, J. S., Okamoto, S., Rossell, M. D., Huijben, M., Yang, C. H., He, Q., Zhang, J. X., Yang, S. Y., Lee, M. J., Ramasse, Q. M., Erni, R., Chu, Y. H., Arena, D. A., Kao, C. C., Martin, L. W., & Ramesh, R. (2010). Interface ferromagnetism and orbital reconstruction in BiFeO ₃-La0.7Sr0.3MnO₃ heterostructures. Physical Review Letters, 105(2), Article 027201. https://doi.org/10.1103/PhysRevLett.105.027201

@article{7071934627744bf3b19137afe36d65e2,

title = "Interface ferromagnetism and orbital reconstruction in BiFeO 3-La0.7Sr0.3MnO3 heterostructures",

abstract = "We report the formation of a novel ferromagnetic state in the antiferromagnet BiFeO3 at the interface with ferromagnet La0.7Sr0.3MnO3. Using x-ray magnetic circular dichroism at Mn and Fe L2,3 edges, we discovered that the development of this ferromagnetic spin structure is strongly associated with the onset of a significant exchange bias. Our results demonstrate that the magnetic state is directly related to an electronic orbital reconstruction at the interface, which is supported by the linearly polarized x-ray absorption measurement at the oxygen K edge.",

author = "P. Yu and Lee, \{J. S.\} and S. Okamoto and Rossell, \{M. D.\} and M. Huijben and Yang, \{C. H.\} and Q. He and Zhang, \{J. X.\} and Yang, \{S. Y.\} and Lee, \{M. J.\} and Ramasse, \{Q. M.\} and R. Erni and Chu, \{Y. H.\} and Arena, \{D. A.\} and Kao, \{C. C.\} and Martin, \{L. W.\} and R. Ramesh",

year = "2010",

month = jul,

day = "6",

doi = "10.1103/PhysRevLett.105.027201",

language = "English",

volume = "105",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "2",

}

Yu, P, Lee, JS, Okamoto, S, Rossell, MD, Huijben, M, Yang, CH, He, Q, Zhang, JX, Yang, SY, Lee, MJ, Ramasse, QM, Erni, R, Chu, YH, Arena, DA, Kao, CC, Martin, LW & Ramesh, R 2010, 'Interface ferromagnetism and orbital reconstruction in BiFeO ₃-La0.7Sr0.3MnO₃ heterostructures', Physical Review Letters, vol. 105, no. 2, 027201. https://doi.org/10.1103/PhysRevLett.105.027201

TY - JOUR

T1 - Interface ferromagnetism and orbital reconstruction in BiFeO 3-La0.7Sr0.3MnO3 heterostructures

AU - Yu, P.

AU - Lee, J. S.

AU - Okamoto, S.

AU - Rossell, M. D.

AU - Huijben, M.

AU - Yang, C. H.

AU - He, Q.

AU - Zhang, J. X.

AU - Yang, S. Y.

AU - Lee, M. J.

AU - Ramasse, Q. M.

AU - Erni, R.

AU - Chu, Y. H.

AU - Arena, D. A.

AU - Kao, C. C.

AU - Martin, L. W.

AU - Ramesh, R.

PY - 2010/7/6

Y1 - 2010/7/6

N2 - We report the formation of a novel ferromagnetic state in the antiferromagnet BiFeO3 at the interface with ferromagnet La0.7Sr0.3MnO3. Using x-ray magnetic circular dichroism at Mn and Fe L2,3 edges, we discovered that the development of this ferromagnetic spin structure is strongly associated with the onset of a significant exchange bias. Our results demonstrate that the magnetic state is directly related to an electronic orbital reconstruction at the interface, which is supported by the linearly polarized x-ray absorption measurement at the oxygen K edge.

AB - We report the formation of a novel ferromagnetic state in the antiferromagnet BiFeO3 at the interface with ferromagnet La0.7Sr0.3MnO3. Using x-ray magnetic circular dichroism at Mn and Fe L2,3 edges, we discovered that the development of this ferromagnetic spin structure is strongly associated with the onset of a significant exchange bias. Our results demonstrate that the magnetic state is directly related to an electronic orbital reconstruction at the interface, which is supported by the linearly polarized x-ray absorption measurement at the oxygen K edge.

UR - https://www.scopus.com/pages/publications/77954389672

U2 - 10.1103/PhysRevLett.105.027201

DO - 10.1103/PhysRevLett.105.027201

M3 - Article

AN - SCOPUS:77954389672

SN - 0031-9007

VL - 105

JO - Physical Review Letters

JF - Physical Review Letters

IS - 2

M1 - 027201

ER -

Interface ferromagnetism and orbital reconstruction in BiFeO ₃-La0.7Sr0.3MnO₃ heterostructures

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