Interface ferromagnetism and orbital reconstruction in BiFeO3-La0.7Sr0.3MnO3 heterostructures

P. Yu; J.S. Lee; S. Okamoto; M.D. Rossell; Mark Huijben; C.H. Yang; Q. He; Qiwei He; J.X. Zhang; S.Y. Yang; M.J. Lee; Q.M. Ramasse; R. Emi; 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 BiFeO3-La0.7Sr0.3MnO3 heterostructures

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

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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
Pages (from-to)	027201-
Number of pages	5
Journal	Physical review letters
Volume	105
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.105.027201
Publication status	Published - 2010

Keywords

METIS-269428
IR-75249

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10.1103/PhysRevLett.105.027201

interface_ferromagnetism

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Yu, P., Lee, J. S., Okamoto, S., Rossell, M. D., Huijben, M., Yang, C. H., He, Q., He, Q., Zhang, J. X., Yang, S. Y., Lee, M. J., Ramasse, Q. M., Emi, R., Chu, Y. H., Arena, D. A., Kao, C. C., Martin, L. W., & Ramesh, R. (2010). Interface ferromagnetism and orbital reconstruction in BiFeO3-La0.7Sr0.3MnO3 heterostructures. Physical review letters, 105(2), 027201-. https://doi.org/10.1103/PhysRevLett.105.027201

@article{e3d1df6650f945cbaafee796e1ed1aa6,

title = "Interface ferromagnetism and orbital reconstruction in BiFeO3-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",

keywords = "METIS-269428, IR-75249",

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

year = "2010",

doi = "10.1103/PhysRevLett.105.027201",

language = "English",

volume = "105",

pages = "027201--",

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, He, Q, Zhang, JX, Yang, SY, Lee, MJ, Ramasse, QM, Emi, R, Chu, YH, Arena, DA, Kao, CC, Martin, LW & Ramesh, R 2010, 'Interface ferromagnetism and orbital reconstruction in BiFeO3-La0.7Sr0.3MnO3 heterostructures', Physical review letters, vol. 105, no. 2, pp. 027201-. https://doi.org/10.1103/PhysRevLett.105.027201

TY - JOUR

T1 - Interface ferromagnetism and orbital reconstruction in BiFeO3-La0.7Sr0.3MnO3 heterostructures

AU - Yu, P.

AU - Lee, J.S.

AU - Okamoto, S.

AU - Rossell, M.D.

AU - Huijben, Mark

AU - Yang, C.H.

AU - He, Q.

AU - He, Qiwei

AU - Zhang, J.X.

AU - Yang, S.Y.

AU - Lee, M.J.

AU - Ramasse, Q.M.

AU - Emi, R.

AU - Chu, Y.H.

AU - Arena, D.A.

AU - Kao, C.C.

AU - Martin, L.W.

AU - Ramesh, R.

PY - 2010

Y1 - 2010

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

KW - METIS-269428

KW - IR-75249

U2 - 10.1103/PhysRevLett.105.027201

DO - 10.1103/PhysRevLett.105.027201

M3 - Article

SN - 0031-9007

VL - 105

SP - 027201-

JO - Physical review letters

JF - Physical review letters

IS - 2

ER -

Interface ferromagnetism and orbital reconstruction in BiFeO3-La0.7Sr0.3MnO3 heterostructures

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