Leedahl, Brett, Sundermann, Martin, Amorese, Andrea ORCID: 0000-0003-0271-0543, Severing, Andrea, Gretarsson, Hlynur, Zhang, Lunyong, Komarek, Alexander C., Maignan, Antoine, Haverkort, Maurits W. ORCID: 0000-0002-7216-3146 and Tjeng, Liu Hao ORCID: 0000-0002-0595-9312 (2019). Origin of Ising magnetism in Ca3Co2O6 unveiled by orbital imaging. Nat. Commun., 10. LONDON: NATURE PUBLISHING GROUP. ISSN 2041-1723

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Abstract

The one-dimensional cobaltate Ca3Co2O6 is an intriguing material having an unconventional magnetic structure, displaying quantum tunneling phenomena in its magnetization. Using a newly developed experimental method, s-core-level non-resonant inelastic x-ray scattering (s-NIXS), we were able to image the atomic Co 3d orbital that is responsible for the lsing magnetism in this system. We can directly observe that corrections to the commonly accepted ideal prismatic trigonal crystal field scheme occur in Ca3Co2O6, and it is the complex d(2) orbital occupied by the sixth electron at the high-spin Co-trig(3+)(d(6)) 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.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Leedahl, BrettUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sundermann, MartinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Amorese, AndreaUNSPECIFIEDorcid.org/0000-0003-0271-0543UNSPECIFIED
Severing, AndreaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gretarsson, HlynurUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zhang, LunyongUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Komarek, Alexander C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Maignan, AntoineUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Haverkort, Maurits W.UNSPECIFIEDorcid.org/0000-0002-7216-3146UNSPECIFIED
Tjeng, Liu HaoUNSPECIFIEDorcid.org/0000-0002-0595-9312UNSPECIFIED
URN: urn:nbn:de:hbz:38-126821
DOI: 10.1038/s41467-019-13273-4
Journal or Publication Title: Nat. Commun.
Volume: 10
Date: 2019
Publisher: NATURE PUBLISHING GROUP
Place of Publication: LONDON
ISSN: 2041-1723
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
CHAIN COMPOUND; CRYSTALMultiple languages
Multidisciplinary SciencesMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/12682

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