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| Verfasst von: | Nag, Abhishek [VerfasserIn]  |
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| | Robarts, H. C. [VerfasserIn] |
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| | Wenzel, Fabian [VerfasserIn] |
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| | Li, J. [VerfasserIn] |
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| | Elnaggar, Hebatalla [VerfasserIn] |
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| | Wang, Ru-Pan [VerfasserIn] |
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| | Walters, A. C. [VerfasserIn] |
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| | García-Fernández, M. [VerfasserIn] |
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| | Groot, F. M. F. de [VerfasserIn] |
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| | Haverkort, Maurits W. [VerfasserIn] |
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| | Zhou, Ke-Jin [VerfasserIn] |
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| Titel: | Many-body physics of single and double spin-flip excitations in NiO |
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| Verf.angabe: | Abhishek Nag, H.C. Robarts, F. Wenzel, J. Li, Hebatalla Elnaggar, Ru-Pan Wang, A.C. Walters, M. García-Fernández, F.M.F. de Groot, M.W. Haverkort, and Ke-Jin Zhou |
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| E-Jahr: | 2020 |
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| Jahr: | 13 February 2020 |
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| Umfang: | 6 S. |
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| Illustrationen: | Illustrationen |
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| Fussnoten: | Gesehen am 30.03.2020 |
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| Titel Quelle: | Enthalten in: Physical review letters |
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| Ort Quelle: | College Park, Md. : APS, 1958 |
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| Jahr Quelle: | 2020 |
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| Band/Heft Quelle: | 124(2020,6) Artikel-Nummer 067202, Seite 1-6 |
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| ISSN Quelle: | 1079-7114 |
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| Abstract: | Understanding many-body physics of elementary excitations has advanced our control over material properties. Here, we study spin-flip excitations in NiO using Ni L3-edge resonant inelastic x-ray scattering (RIXS) and present a strikingly different resonant energy behavior between single and double spin-flip excitations. Comparing our results with single-site full-multiplet ligand field theory calculations we find that the spectral weight of the double-magnon excitations originates primarily from the double spin-flip transition of the quadrupolar RIXS process within a single magnetic site. Quadrupolar spin-flip processes are among the least studied excitations, despite being important for multiferroic or spin-nematic materials due to their difficult detection. We identify intermediate state multiplets and intra-atomic core-valence exchange interactions as the key many-body factors determining the fate of such excitations. RIXS resonant energy dependence can act as a convincing proof of existence of nondipolar higher-ranked magnetic orders in systems for which, only theoretical predictions are available. |
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| DOI: | doi:10.1103/PhysRevLett.124.067202 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: https://doi.org/10.1103/PhysRevLett.124.067202 |
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| | Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.124.067202 |
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| | DOI: https://doi.org/10.1103/PhysRevLett.124.067202 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 169349695X |
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| Verknüpfungen: | → Zeitschrift |
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Many-body physics of single and double spin-flip excitations in NiO / Nag, Abhishek [VerfasserIn]; 13 February 2020 (Online-Ressource)
