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

Materials Theory

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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 - http://www.scopus.com/inward/record.url?scp=77954389672&partnerID=8YFLogxK

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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