WFRF:(Chen Chiu Wen)
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Spectroscopic characterization of electronic structures of ultra-thin single crystal La0.7Sr0.3MnO3
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- Chiu, Chun-Chien (author)
- National Cheng Kung University
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- Chang, Yao-Wen (author)
- National Cheng Kung University
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- Shao, Yu-Cheng (author)
- Lawrence Berkeley National Laboratory
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- (creator_code:org_t)
- 2021-03-04
- 2021
- English.
- In: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 11
- Journal article (peer-reviewed)
Abstract
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- We have successfully fabricated high quality single crystalline La0.7Sr0.3MnO3 (LSMO) film in the freestanding form that can be transferred onto silicon wafer and copper mesh support. Using soft x-ray absorption (XAS) and resonant inelastic x-ray scattering (RIXS) spectroscopy in transmission and reflection geometries, we demonstrate that the x-ray emission from Mn 3s-2p core-to-core transition (3sPFY) seen in the RIXS maps can represent the bulk-like absorption signal with minimal self-absorption effect around the Mn L3-edge. Similar measurements were also performed on a reference LSMO film grown on the SrTiO3 substrate and the agreement between measurements substantiates the claim that the bulk electronic structures can be preserved even after the freestanding treatment process. The 3sPFY spectrum obtained from analyzing the RIXS maps offers a powerful way to probe the bulk electronic structures in thin films and heterostructures when recording the XAS spectra in the transmission mode is not available.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
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- Chiu, Chun-Chien
- Chang, Yao-Wen
- Shao, Yu-Cheng
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- Lee, Jenn-Min
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- Yang, Wanli
- Guo, Jinghua
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- Chuang, Yi-De
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