Symmetrical interfacial reconstruction and magnetism in La 0.7Ca0.3MnO3/YBa2Cu 3O7/La0.7Ca0.3MnO3 heterostructures

C. Visani; J. Tornos; N. M. Nemes; M. Rocci; C. Leon; J. Santamaria; S. G.E. Te Velthuis; Yaohua Liu; A. Hoffmann; J. W. Freeland; M. Garcia-Hernandez; M. R. Fitzsimmons; B. J. Kirby; M. Varela; S. J. Pennycook

doi:10.1103/PhysRevB.84.060405

Symmetrical interfacial reconstruction and magnetism in La _0.7Ca_0.3MnO₃/YBa₂Cu ₃O₇/La_0.7Ca_0.3MnO₃ heterostructures

C. Visani, J. Tornos, N. M. Nemes, M. Rocci, C. Leon, J. Santamaria, S. G.E. Te Velthuis, Yaohua Liu, A. Hoffmann, J. W. Freeland, M. Garcia-Hernandez, M. R. Fitzsimmons, B. J. Kirby, M. Varela, S. J. Pennycook

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Abstract

We have analyzed the interface structure and composition of La _0.7Ca_0.3MnO₃/YBa₂Cu ₃O₇/La_0.7Ca_0.3MnO₃ trilayers by combined polarized neutron reflectometry, aberration-corrected microscopy, and atomic column resolution electron-energy-loss spectroscopy and x-ray absorption with polarization analysis. We find the same stacking sequence at both top and bottom cuprate interfaces. X-ray magnetic circular dichroism experiments show that both cuprate interfaces are magnetic with a magnetic moment induced in Cu atoms as expected from symmetric Mn-O-Cu superexchange paths. These results supply a solid footing for the applicability of recent theories explaining the interplay between magnetism and superconductivity in this system in terms of the induced Cu spin polarization at both interfaces.

Original language	English
Article number	060405
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	84
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.84.060405
State	Published - Aug 23 2011
Externally published	Yes

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Visani, C., Tornos, J., Nemes, N. M., Rocci, M., Leon, C., Santamaria, J., Te Velthuis, S. G. E., Liu, Y., Hoffmann, A., Freeland, J. W., Garcia-Hernandez, M., Fitzsimmons, M. R., Kirby, B. J., Varela, M., & Pennycook, S. J. (2011). Symmetrical interfacial reconstruction and magnetism in La _0.7Ca_0.3MnO₃/YBa₂Cu ₃O₇/La_0.7Ca_0.3MnO₃ heterostructures. Physical Review B - Condensed Matter and Materials Physics, 84(6), Article 060405. https://doi.org/10.1103/PhysRevB.84.060405

@article{2f16c5fc1e704318b9396b2db3aa57d8,

title = "Symmetrical interfacial reconstruction and magnetism in La 0.7Ca0.3MnO3/YBa2Cu 3O7/La0.7Ca0.3MnO3 heterostructures",

abstract = "We have analyzed the interface structure and composition of La 0.7Ca0.3MnO3/YBa2Cu 3O7/La0.7Ca0.3MnO3 trilayers by combined polarized neutron reflectometry, aberration-corrected microscopy, and atomic column resolution electron-energy-loss spectroscopy and x-ray absorption with polarization analysis. We find the same stacking sequence at both top and bottom cuprate interfaces. X-ray magnetic circular dichroism experiments show that both cuprate interfaces are magnetic with a magnetic moment induced in Cu atoms as expected from symmetric Mn-O-Cu superexchange paths. These results supply a solid footing for the applicability of recent theories explaining the interplay between magnetism and superconductivity in this system in terms of the induced Cu spin polarization at both interfaces.",

author = "C. Visani and J. Tornos and Nemes, \{N. M.\} and M. Rocci and C. Leon and J. Santamaria and \{Te Velthuis\}, \{S. G.E.\} and Yaohua Liu and A. Hoffmann and Freeland, \{J. W.\} and M. Garcia-Hernandez and Fitzsimmons, \{M. R.\} and Kirby, \{B. J.\} and M. Varela and Pennycook, \{S. J.\}",

year = "2011",

month = aug,

day = "23",

doi = "10.1103/PhysRevB.84.060405",

language = "English",

volume = "84",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "6",

}

Visani, C, Tornos, J, Nemes, NM, Rocci, M, Leon, C, Santamaria, J, Te Velthuis, SGE, Liu, Y, Hoffmann, A, Freeland, JW, Garcia-Hernandez, M, Fitzsimmons, MR, Kirby, BJ, Varela, M & Pennycook, SJ 2011, 'Symmetrical interfacial reconstruction and magnetism in La _0.7Ca_0.3MnO₃/YBa₂Cu ₃O₇/La_0.7Ca_0.3MnO₃ heterostructures', Physical Review B - Condensed Matter and Materials Physics, vol. 84, no. 6, 060405. https://doi.org/10.1103/PhysRevB.84.060405

TY - JOUR

T1 - Symmetrical interfacial reconstruction and magnetism in La 0.7Ca0.3MnO3/YBa2Cu 3O7/La0.7Ca0.3MnO3 heterostructures

AU - Visani, C.

AU - Tornos, J.

AU - Nemes, N. M.

AU - Rocci, M.

AU - Leon, C.

AU - Santamaria, J.

AU - Te Velthuis, S. G.E.

AU - Liu, Yaohua

AU - Hoffmann, A.

AU - Freeland, J. W.

AU - Garcia-Hernandez, M.

AU - Fitzsimmons, M. R.

AU - Kirby, B. J.

AU - Varela, M.

AU - Pennycook, S. J.

PY - 2011/8/23

Y1 - 2011/8/23

N2 - We have analyzed the interface structure and composition of La 0.7Ca0.3MnO3/YBa2Cu 3O7/La0.7Ca0.3MnO3 trilayers by combined polarized neutron reflectometry, aberration-corrected microscopy, and atomic column resolution electron-energy-loss spectroscopy and x-ray absorption with polarization analysis. We find the same stacking sequence at both top and bottom cuprate interfaces. X-ray magnetic circular dichroism experiments show that both cuprate interfaces are magnetic with a magnetic moment induced in Cu atoms as expected from symmetric Mn-O-Cu superexchange paths. These results supply a solid footing for the applicability of recent theories explaining the interplay between magnetism and superconductivity in this system in terms of the induced Cu spin polarization at both interfaces.

AB - We have analyzed the interface structure and composition of La 0.7Ca0.3MnO3/YBa2Cu 3O7/La0.7Ca0.3MnO3 trilayers by combined polarized neutron reflectometry, aberration-corrected microscopy, and atomic column resolution electron-energy-loss spectroscopy and x-ray absorption with polarization analysis. We find the same stacking sequence at both top and bottom cuprate interfaces. X-ray magnetic circular dichroism experiments show that both cuprate interfaces are magnetic with a magnetic moment induced in Cu atoms as expected from symmetric Mn-O-Cu superexchange paths. These results supply a solid footing for the applicability of recent theories explaining the interplay between magnetism and superconductivity in this system in terms of the induced Cu spin polarization at both interfaces.

UR - https://www.scopus.com/pages/publications/80052355139

U2 - 10.1103/PhysRevB.84.060405

DO - 10.1103/PhysRevB.84.060405

M3 - Article

AN - SCOPUS:80052355139

SN - 1098-0121

VL - 84

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 6

M1 - 060405

ER -

Symmetrical interfacial reconstruction and magnetism in La _0.7Ca_0.3MnO₃/YBa₂Cu ₃O₇/La_0.7Ca_0.3MnO₃ heterostructures

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