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  Origin of Ising magnetism in Ca3Co2O6 unveiled by orbital imaging

Leedahl, B., Sundermann, M., Amorese, A., Severing, A., Gretarsson, H., Zhang, L., et al. (2019). Origin of Ising magnetism in Ca3Co2O6 unveiled by orbital imaging. Nature Communications, 10: 5447, pp. 1-7. doi:10.1038/s41467-019-13273-4.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-56D3-C Version Permalink: http://hdl.handle.net/21.11116/0000-0005-56D6-9
Genre: Journal Article

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 Creators:
Leedahl, Brett1, Author              
Sundermann, Martin1, Author              
Amorese, Andrea1, Author              
Severing, Andrea1, Author              
Gretarsson, Hlynur1, Author              
Zhang, Lunyong1, Author              
Komarek, Alexander C.2, Author              
Maignan, Antoine3, Author
Haverkort, Maurits W.3, Author
Tjeng, Liu Hao4, Author              
Affiliations:
1Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
2Alexander Komarek, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863446              
3External Organizations, ou_persistent22              
4Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863452              

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 Abstract: The one-dimensional cobaltate Ca[Formula: see text]Co[Formula: see text]O[Formula: see text] is an intriguing material having an unconventional magnetic structure, displaying quantum tunneling phenomena in its magnetization. Using a newly developed experimental method, [Formula: see text]-core-level non-resonant inelastic x-ray scattering ([Formula: see text]-NIXS), we were able to image the atomic Co [Formula: see text] orbital that is responsible for the Ising magnetism in this system. We can directly observe that corrections to the commonly accepted ideal prismatic trigonal crystal field scheme occur in Ca[Formula: see text]Co[Formula: see text]O[Formula: see text], and it is the complex [Formula: see text] orbital occupied by the sixth electron at the high-spin Co[Formula: see text] ([Formula: see text]) sites that generates the Ising-like behavior. The ability to directly relate the orbital occupation with the local crystal structure is essential to model the magnetic properties of this system.

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Language(s): eng - English
 Dates: 2019-11-292019-11-29
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1038/s41467-019-13273-4
 Degree: -

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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 10 Sequence Number: 5447 Start / End Page: 1 - 7 Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723