Journal Article

PUBDB-2024-05779

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Heteroepitaxial tuning of resonant forbidden reflections in a spinel

Oka, R.Extern* ; Kim, M.Extern* ; Wochner, P.Extern* ; Francoual, S.DESY* ; Palstra, T.Extern* ; TAKAGI, H.Extern* ; Huang, D. (Corresponding author)Extern*

2024
RSC London ˜[u.a.]œ

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Please use a persistent id in citations: doi:10.1039/D4TC02239D  doi:10.3204/PUBDB-2024-05779

Abstract: In resonant elastic X-ray scattering (REXS), low site symmetries in a crystal may be revealed through resonant Bragg reflections that are normally forbidden in conventional X-ray diffraction due to screw axes and/or glide planes. These resonant forbidden reflections have been observed in spinel compounds, but to better understand and utilize their connection to microscopic material parameters and possible charge and/or orbital ordering, a systematic study of their dependence on growth conditions and applied strain is desired. We performed REXS at the V K edge and examined the resonant forbidden (002) reflection in thin films of the spinel LiV$_2$O$_4$ grown on three substrates: MgAl$_2$O$_4$, SrTiO$_3$, and MgO. The energy dependence of the (002) reflection shows a systematic evolution as epitaxial strain modifies the local anisotropy of the V site. More strikingly, the integrated intensity of the (002) reflection varies by more than an order of magnitude in films on different substrates. We speculate that the large variation in integrated intensity reflects the varying degree of antiphase domains that arise during the epitaxy.

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Contributing Institute(s):

1. PETRA-S (FS-PETRA-S)
2. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. FS-Proposal: I-20220766 (I-20220766) (I-20220766)

Experiment(s):

1. PETRA Beamline P09 (PETRA III)

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 5 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Oka, R.Extern* ; Kim, M.Extern* ; Wochner, P.Extern* ; Francoual, S.DESY* ; Palstra, T. T. M.Extern* ; Takagi, H.Extern* ; Huang, D. (Corresponding author)Extern*
Correction: Heteroepitaxial tuning of resonant forbidden reflections in a spinel
Journal of materials chemistry / C 12(37), 15257-15257 (2024) [10.1039/D4TC90152E]2024     Files BibTeX | EndNote: XML, Text | RIS

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