Electronic and magnetic reconstructions in La0.7Sr 0.3MnO3/SrTiO3 heterostructures: A case of enhanced interlayer coupling controlled by the interface

F. Y. Bruno; J. Garcia-Barriocanal; M. Varela; N. M. Nemes; P. Thakur; J. C. Cezar; N. B. Brookes; A. Rivera-Calzada; M. Garcia-Hernandez; C. Leon; S. Okamoto; S. J. Pennycook; J. Santamaria

doi:10.1103/PhysRevLett.106.147205

Electronic and magnetic reconstructions in La_0.7Sr _0.3MnO₃/SrTiO₃ heterostructures: A case of enhanced interlayer coupling controlled by the interface

F. Y. Bruno
, J. Garcia-Barriocanal
, M. Varela
, N. M. Nemes
, P. Thakur
, J. C. Cezar
, N. B. Brookes
, A. Rivera-Calzada
, M. Garcia-Hernandez
, C. Leon
, S. Okamoto
, S. J. Pennycook
, J. Santamaria

Materials Theory

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

88 Scopus citations

Abstract

We report on the magnetic coupling of La_0.7Sr _0.3MnO₃ layers through SrTiO₃ spacers in La_0.7Sr_0.3MnO₃/SrTiO₃ epitaxial heterostructures. Combined aberration-corrected microscopy and electron-energy-loss spectroscopy evidence charge transfer to the empty conduction band of the titanate. Ti d electrons interact via superexchange with Mn, giving rise to a Ti magnetic moment as demonstrated by x-ray magnetic circular dichroism. This induced magnetic moment in the SrTiO₃ controls the bulk magnetic and transport properties of the superlattices when the titanate layer thickness is below 1μnm.

Original language	English
Article number	147205
Journal	Physical Review Letters
Volume	106
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.106.147205
State	Published - Apr 8 2011

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Bruno, F. Y., Garcia-Barriocanal, J., Varela, M., Nemes, N. M., Thakur, P., Cezar, J. C., Brookes, N. B., Rivera-Calzada, A., Garcia-Hernandez, M., Leon, C., Okamoto, S., Pennycook, S. J., & Santamaria, J. (2011). Electronic and magnetic reconstructions in La_0.7Sr _0.3MnO₃/SrTiO₃ heterostructures: A case of enhanced interlayer coupling controlled by the interface. Physical Review Letters, 106(14), Article 147205. https://doi.org/10.1103/PhysRevLett.106.147205

@article{7769a38d2f9446c09ea5c784a9e40c3c,

title = "Electronic and magnetic reconstructions in La0.7Sr 0.3MnO3/SrTiO3 heterostructures: A case of enhanced interlayer coupling controlled by the interface",

abstract = "We report on the magnetic coupling of La0.7Sr 0.3MnO3 layers through SrTiO3 spacers in La0.7Sr0.3MnO3/SrTiO3 epitaxial heterostructures. Combined aberration-corrected microscopy and electron-energy-loss spectroscopy evidence charge transfer to the empty conduction band of the titanate. Ti d electrons interact via superexchange with Mn, giving rise to a Ti magnetic moment as demonstrated by x-ray magnetic circular dichroism. This induced magnetic moment in the SrTiO3 controls the bulk magnetic and transport properties of the superlattices when the titanate layer thickness is below 1μnm.",

author = "Bruno, \{F. Y.\} and J. Garcia-Barriocanal and M. Varela and Nemes, \{N. M.\} and P. Thakur and Cezar, \{J. C.\} and Brookes, \{N. B.\} and A. Rivera-Calzada and M. Garcia-Hernandez and C. Leon and S. Okamoto and Pennycook, \{S. J.\} and J. Santamaria",

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doi = "10.1103/PhysRevLett.106.147205",

language = "English",

volume = "106",

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Bruno, FY, Garcia-Barriocanal, J, Varela, M, Nemes, NM, Thakur, P, Cezar, JC, Brookes, NB, Rivera-Calzada, A, Garcia-Hernandez, M, Leon, C, Okamoto, S, Pennycook, SJ & Santamaria, J 2011, 'Electronic and magnetic reconstructions in La_0.7Sr _0.3MnO₃/SrTiO₃ heterostructures: A case of enhanced interlayer coupling controlled by the interface', Physical Review Letters, vol. 106, no. 14, 147205. https://doi.org/10.1103/PhysRevLett.106.147205

TY - JOUR

T1 - Electronic and magnetic reconstructions in La0.7Sr 0.3MnO3/SrTiO3 heterostructures

T2 - A case of enhanced interlayer coupling controlled by the interface

AU - Bruno, F. Y.

AU - Garcia-Barriocanal, J.

AU - Varela, M.

AU - Nemes, N. M.

AU - Thakur, P.

AU - Cezar, J. C.

AU - Brookes, N. B.

AU - Rivera-Calzada, A.

AU - Garcia-Hernandez, M.

AU - Leon, C.

AU - Okamoto, S.

AU - Pennycook, S. J.

AU - Santamaria, J.

PY - 2011/4/8

Y1 - 2011/4/8

N2 - We report on the magnetic coupling of La0.7Sr 0.3MnO3 layers through SrTiO3 spacers in La0.7Sr0.3MnO3/SrTiO3 epitaxial heterostructures. Combined aberration-corrected microscopy and electron-energy-loss spectroscopy evidence charge transfer to the empty conduction band of the titanate. Ti d electrons interact via superexchange with Mn, giving rise to a Ti magnetic moment as demonstrated by x-ray magnetic circular dichroism. This induced magnetic moment in the SrTiO3 controls the bulk magnetic and transport properties of the superlattices when the titanate layer thickness is below 1μnm.

AB - We report on the magnetic coupling of La0.7Sr 0.3MnO3 layers through SrTiO3 spacers in La0.7Sr0.3MnO3/SrTiO3 epitaxial heterostructures. Combined aberration-corrected microscopy and electron-energy-loss spectroscopy evidence charge transfer to the empty conduction band of the titanate. Ti d electrons interact via superexchange with Mn, giving rise to a Ti magnetic moment as demonstrated by x-ray magnetic circular dichroism. This induced magnetic moment in the SrTiO3 controls the bulk magnetic and transport properties of the superlattices when the titanate layer thickness is below 1μnm.

UR - https://www.scopus.com/pages/publications/79959667324

U2 - 10.1103/PhysRevLett.106.147205

DO - 10.1103/PhysRevLett.106.147205

M3 - Article

AN - SCOPUS:79959667324

SN - 0031-9007

VL - 106

JO - Physical Review Letters

JF - Physical Review Letters

IS - 14

M1 - 147205

ER -

Electronic and magnetic reconstructions in La_0.7Sr _0.3MnO₃/SrTiO₃ heterostructures: A case of enhanced interlayer coupling controlled by the interface

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