X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO₄
Thermochromic phase transition was studied in CuMoO₄ using the Cu and Mo K-edge x-ray absorption spectroscopy in the temperature range of 10–300 K. The hysteretic behavior has been evidenced from the temperature dependence of the pre-edge shoulder intensity at the Mo K-edge, indicating that the tran...
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| Published in: | Физика низких температур |
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| Date: | 2018 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2018
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/176119 |
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| Cite this: | X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO₄ / I. Jonane, A. Cintins, A. Kalinko, R. Chernikov, A. Kuzmin // Физика низких температур. — 2018. — Т. 44, № 5. — С. 568-572. — Бібліогр.: 39 назв. — англ. |
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Jonane, I. Cintins, A. Kalinko, A. Chernikov, R. Kuzmin, A. 2021-02-03T17:49:33Z 2021-02-03T17:49:33Z 2018 X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO₄ / I. Jonane, A. Cintins, A. Kalinko, R. Chernikov, A. Kuzmin // Физика низких температур. — 2018. — Т. 44, № 5. — С. 568-572. — Бібліогр.: 39 назв. — англ. 0132-6414 PACS: 61.05.cj, 64.70.kp https://nasplib.isofts.kiev.ua/handle/123456789/176119 Thermochromic phase transition was studied in CuMoO₄ using the Cu and Mo K-edge x-ray absorption spectroscopy in the temperature range of 10–300 K. The hysteretic behavior has been evidenced from the temperature dependence of the pre-edge shoulder intensity at the Mo K-edge, indicating that the transition from brownish-red γ-CuMoO₄ to green α-CuMoO₄ occurs in the temperature range of 230–280 K upon heating, whereas the α-to-γ transition occurs between 200 and 120 K upon cooling. Such behavior of the pre-edge shoulder at the Mo K-edge correlates with the change of molybdenum coordination between distorted tetrahedral in α-CuMoO₄ and distorted octahedral in γ-CuMoO₄. This result has been supported by ab initio full-multiple-scattering x-ray absorption near edge structure (XANES) calculations. Financial support provided by Scientific Research Project for Students and Young Researchers Nr. SJZ/2017/5 realized at the Institute of Solid State Physics, University of Latvia is greatly acknowledged. The experiment at HASYLAB/DESY was performed within the project I-20160149 EC. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Динамика кристаллической решетки X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO₄ Article published earlier |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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| title |
X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO₄ |
| spellingShingle |
X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO₄ Jonane, I. Cintins, A. Kalinko, A. Chernikov, R. Kuzmin, A. Динамика кристаллической решетки |
| title_short |
X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO₄ |
| title_full |
X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO₄ |
| title_fullStr |
X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO₄ |
| title_full_unstemmed |
X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO₄ |
| title_sort |
x-ray absorption near edge spectroscopy of thermochromic phase transition in cumoo₄ |
| author |
Jonane, I. Cintins, A. Kalinko, A. Chernikov, R. Kuzmin, A. |
| author_facet |
Jonane, I. Cintins, A. Kalinko, A. Chernikov, R. Kuzmin, A. |
| topic |
Динамика кристаллической решетки |
| topic_facet |
Динамика кристаллической решетки |
| publishDate |
2018 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
Thermochromic phase transition was studied in CuMoO₄ using the Cu and Mo K-edge x-ray absorption spectroscopy in the temperature range of 10–300 K. The hysteretic behavior has been evidenced from the temperature dependence of the pre-edge shoulder intensity at the Mo K-edge, indicating that the transition from brownish-red γ-CuMoO₄ to green α-CuMoO₄ occurs in the temperature range of 230–280 K upon heating, whereas the α-to-γ transition occurs between 200 and 120 K upon cooling. Such behavior of the pre-edge shoulder at the Mo K-edge correlates with the change of molybdenum coordination between distorted tetrahedral in α-CuMoO₄ and distorted octahedral in γ-CuMoO₄. This result has been supported by ab initio full-multiple-scattering x-ray absorption near edge structure (XANES) calculations.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/176119 |
| citation_txt |
X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO₄ / I. Jonane, A. Cintins, A. Kalinko, R. Chernikov, A. Kuzmin // Физика низких температур. — 2018. — Т. 44, № 5. — С. 568-572. — Бібліогр.: 39 назв. — англ. |
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| first_indexed |
2025-12-07T15:26:09Z |
| last_indexed |
2025-12-07T15:26:09Z |
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