Journal Article

PUBDB-2019-01970

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Direct imaging of orbitals in quantum materials

Yavaş, H.DESY* ; Sundermann, M.Extern* ; Chen, K. ; Amorese, A. ; Severing, A.Extern* ; Gretarsson, H.DESY* ; Haverkort, M. W. ; Tjeng, L. H. (Corresponding author)

2019
Nature Publishing Group Basingstoke

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Please use a persistent id in citations: doi:10.1038/s41567-019-0471-2  doi:10.3204/PUBDB-2019-01970

Abstract: The electronic states of quantum materials based on transition-metal, rare-earth and actinide elements are dominated by electrons in the d and f orbitals intertwined with the strong band formation of the solid. Until now, to estimate which specific orbitals contribute to the ground state and thereby determine their physical properties we have had to rely on theoretical calculations combined with spectroscopy. Here, we show that s-core-level non-resonant inelastic X-ray scattering can directly image the active orbital in real space, without the necessity for any modelling. The power and accuracy of this new technique is shown using the textbook example, $x^2 − y^2 / 3z^2 − r^2$ orbital of the Ni$^{2+}$ ion in NiO single crystal.

Note: © Springer Nature Limited

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. Experimentebetreuung PETRA III (FS-PE)
3. Max-Planck-Gesellschaft (MPG)

Research Program(s):

1. 6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621) (POF3-621)
2. 6G3 - PETRA III (POF3-622) (POF3-622)

Experiment(s):

1. PETRA Beamline P01 (PETRA III)

Appears in the scientific report 2019

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 20 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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