Transmission soft x-ray absorption spectroscopy by x-ray excited optical luminescence
Project/Area Number |
16K05033
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Quantum beam science
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Research Institution | High Energy Accelerator Research Organization |
Principal Investigator |
Horiba Koji 大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 准教授 (10415292)
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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Keywords | 放射光 / 軟X線吸収分光 / X線吸収分光 |
Outline of Final Research Achievements |
X-ray absorption spectroscopy (XAS) is widely used for revealing the chemical, electronic, and structural states of materials. The measurement of x-ray transmission through the samples is the most direct method for obtaining x-ray absorbance of the samples. However, in the soft-x-ray region, it is a hard task to measure the XAS spectra in transmission mode owing to the low transmittance of the soft x-ray in solids: Special setup of the samples is necessary for the measurement, such as thinning the samples up to around a few hundred nanometers or putting the samples on a membrane sample holder. Recently, as a novel method of solving the difficulty, the XAS measurement in bulk-sensitive transmission mode on thin-film samples has been proposed, where the amount of transmission x-ray through the thin-film samples is measured by the intensity of x-ray excited optical luminescence (XEOL) from the substrates. We have developed a novel transmission XAS measurement system based on this method.
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Academic Significance and Societal Importance of the Research Achievements |
本研究により、転換可視蛍光収量による透過軟X線吸収分光法を様々な薄膜試料に適用可能な汎用的手法として確立することができた。これによって、特に表面が不安定な試料の軽元素の電子状態を計測する、学術的社会的にも非常に意義のある手法として発展が期待される。また本手法は汎用的な軟X線吸収分光法という位置付けに留まらず、軟X線領域におけるオペランド計測の新手法としても大きな展開が期待できる。 本測定装置は全国共同利用装置として広くユーザーに開放する予定であり、学術的のみならず産業的に重要な物質系やデバイス等、幅広い試料を対象として実験に供することで学術的社会的に貢献する。
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Report
(4 results)
Research Products
(53 results)
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[Journal Article] Origins of thermal spin depolarization in half-metallic ferromagnet CrO22018
Author(s)
Hirokazu Fujiwara, Kensei Terashima, Masanori Sunagawa, Yuko Yano, Takanobu Nagayama, Tetsushi Fukura, Fumiya Yoshii, Yuka Matsuura, Makoto Ogata, Takanori Wakita, Koichiro Yaji, Ayumi Harasawa, Kenta Kuroda, Shik Shin, K. Horiba, H. Kumigashira, Yuji Muraoka and Takayoshi Yokoya
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Journal Title
Phys. Rev. Lett.
Volume: 121
Issue: 25
Pages: 257201-257201
DOI
Related Report
Peer Reviewed
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[Journal Article] Temperature dependence of Yb valence in the sub-surface of YbB12(001)2017
Author(s)
K. Hagiwara, Y. Takeno, Y. Ohtsubo, R. Yukawa, M. Kobayashi, K. Horiba, H. Kumigashira, J. Rault, P. Le Fevre, F. Bertran, A. Taleb-Ibrahimi, F. Iga, S. Kimura
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Journal Title
Journal of Physics: Conference Series
Volume: 807
Pages: 012003-012003
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Interlayer states arising from anionic electrons in the honeycomb lattice-based compounds AeAlSi (Ae = Ca, Sr, Ba)2017
Author(s)
Yangfan Lu, Tomofumi Tada, Yoshitake Toda, Shigenori Ueda, Jiazhen Wu, Jiang Li, Koji Horiba, Hiroshi Kumigashira, Yaoqing Zhang, and Hideo Hosono
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Journal Title
Phys. Rev. B
Volume: 95
Issue: 12
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Ce Core-Level Spectroscopy, and Magnetic and Electrical Transport Properties of Lightly Ce-Doped YCoO32016
Author(s)
Yoshihiko Kobayashi, Tsuyoshi Koike, Mario Okawa, Ryohei Takayanagi, Shohei Takei, Makoto Minohara, Masaki Kobayashi, Koji Horiba, Hiroshi Kumigashira, Akira Yasui, Eiji Ikenaga, Tomohiko Saitoh, and Kichizo Asai
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Journal Title
J. Phys. Soc. Jpn.
Volume: 85
Issue: 11
Pages: 114704-114704
DOI
NAID
Related Report
Peer Reviewed
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[Presentation] Wide-energy-range synchrotron beamline for spectroscopic analysis of surface and interface, BL-2 MUSASHI2018
Author(s)
K. Horiba, M. Kitamura, M. Minohara, R. Yukawa, D. Shiga, A. Toyoshima, H. Tanaka, Y. Nagatani, T. Kosuge, K. Amemiya, and H. Kumigashira
Organizer
14th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14)
Related Report
Int'l Joint Research
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[Presentation] Construction of wide-energy-range VUV-SX beamline BL-2 MUSASHI at KEK-PF2016
Author(s)
K. Horiba, M. Minohara, T. Mitsuhashi, K. Amemiya, A. Yagishita, Y. Kitajima, A. Toyoshima, H. Tanaka, T. Kikuchi, T. Mori, Y. Saito, K. Nigorikawa, Y. Nagatani, T. Kosuge, and H. Kumigashira
Organizer
39th International Conference on Vacuum Ultraviolet and X-ray Physics (VUVX2016)
Place of Presentation
Zurich(Switzerland)
Year and Date
2016-07-03
Related Report
Int'l Joint Research
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