Synchrotron-based far-infrared spectroscopy of nickel tungstate

Автор(и)

  • A. Kalinko Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga LV-1063, Latvia
  • A. Kuzmin Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga LV-1063, Latvia
  • P. Roy Synchrotron SOLEIL, l’Orme des Merisiers, Saint-Aubin, BP 48, Gif-sur-Yvette 91192, France
  • R.A. Evarestov Department of Quantum Chemistry, St. Petersburg University 26 Universitetskiy Prospekt, Stary Peterhof 198504, Russia

DOI:

https://doi.org/10.1063/1.4959012%20

Ключові слова:

NiWO4, CoWO4, ZnWO4, infrared spectroscopy, first-principles calculations.

Анотація

Monoclinic antiferromagnetic NiWO4 was studied by far-infrared (30–600 cm−1) absorption spectroscopy inthe 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 Néel temperatures down to 5 K.

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Опубліковано

2016-05-18

Як цитувати

(1)
Kalinko, A.; Kuzmin, A.; Roy, P.; Evarestov, R. Synchrotron-Based Far-Infrared Spectroscopy of Nickel Tungstate. Fiz. Nizk. Temp. 2016, 42, 705-709.

Номер

Том 42 № 7 (2016)

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