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періодичних видань НАН України
періодичних видань НАН України
Synchrotron-based far-infrared spectroscopy of nickel tungstate
Репозиторій DSpace/Manakin
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Synchrotron-based far-infrared spectroscopy of nickel tungstate
Тема:
Low-Temperature Radiation Effects in Wide Gap Materials
Інший ID:
PACS: 78.30.–j, 71.15.–m
Посилання:
Synchrotron-based far-infrared spectroscopy of nickel tungstate / A. Kalinko, A. Kuzmin, P. Roy, R.A. Evarestov // Физика низких температур. — 2016. — Т. 42, № 7. — С. 705-709. — Бібліогр.: 38 назв. — англ.
Підтримка:
This work was supported by Latvian Science Council
Grant No. 187/2012. The infrared measurements have been
supported by synchrotron SOLEIL (Proposal 20110863).
Дата:
2016
Переглядів:
758
Завантажень:
540
Анотація:
Monoclinic antiferromagnetic NiW ₄ was studied by far-infrared (30–600 cm−¹) absorption spectroscopy in the temperature range of 5–300 K using the synchrotron radiation from SOLEIL source. Two isomorphous CoWO₄ and ZnWO₄ tungstates were investigated for comparison. The phonon contributions in the far-infrared range of tungstates were interpreted using the first-principles spin-polarized linear combination of atomic orbital calculations. No contributions from magnetic excitations were found in NiWO₄ and CoWO₄ below their Neel temperatures down to 5 K.
