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  Quantitative determination of bond order and lattice distortions in nickel oxide heterostructures by resonant x-ray scattering

Lu, Y., Frano, A., Bluschke, M., Hepting, M., Macke, S., Strempfer, J., et al. (2016). Quantitative determination of bond order and lattice distortions in nickel oxide heterostructures by resonant x-ray scattering. Physical Review B, 93(16): 165121, pp. 1-6. doi:10.1103/PhysRevB.93.165121.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-7126-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-08F4-3
Genre: Journal Article

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 Creators:
Lu, Y.1, Author
Frano, A.1, Author
Bluschke, M.1, Author
Hepting, M.1, Author
Macke, S.1, Author
Strempfer, J.1, Author
Wochner, P.1, Author
Cristiani, G.1, Author
Logvenov, G.1, Author
Habermeier, H.-U.1, Author
Haverkort, M. W.2, Author              
Keimer, B.1, Author
Benckiser, E.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Maurits Haverkort, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863455              

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 Abstract: We present a combined study of Ni K-edge resonant x-ray scattering and density functional calculations to probe and distinguish electronically driven ordering and lattice distortions in nickelate heterostructures. We demonstrate that due to the low crystal symmetry, contributions from structural distortions can contribute significantly to the energy-dependent Bragg peak intensities of a bond-ordered NdNiO3 reference film. For a LaNiO3-LaAlO3 superlattice that exhibits magnetic order, we establish a rigorous upper bound on the bond-order parameter. We thus conclusively confirm predictions of a dominant spin density wave order parameter in metallic nickelates with a quasi-two-dimensional electronic structure.

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Language(s): eng - English
 Dates: 2016-04-152016-04-15
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 93 (16) Sequence Number: 165121 Start / End Page: 1 - 6 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008