X-ray absorption and Raman spectroscopy studies of tungstates solid solutions ZncNi1−cWO4 (c = 0.0−1.0)

Aleksandrs Kaļinko; Georgijs Bakradze; Aleksejs Kuzmins; Bakradze Georgijs; Kuzmin A.

doi:10.1063/10.0002474

X-ray absorption and Raman spectroscopy studies of tungstates solid solutions ZncNi1−cWO4 (c = 0.0−1.0)

Aleksandrs Kaļinko
, Georgijs Bakradze
, Aleksejs Kuzmins
, Bakradze Georgijs
, Kuzmin A.

Institute of Solid State Physics, University of Latvia

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The influence of thermal disorder and static distortions on the local structure in microcrystalline solid solutions of tungstates ZncNi1-cWO4 with c = 0.0-1.0 was investigated using temperature-dependent (10-300 K) x-ray absorption spectroscopy (XAS) at the W L3-edge. In addition, the vibrational properties of the solid solutions were studied by Raman spectroscopy. Our results indicate that the formation of solid solutions is accompanied by strong structural relaxations leading to the changes in the [WO6] octahedra distortions, which, in turn, affect the vibrational properties of tungstates. In particular, the frequency and band width of the highest W - O stretching mode at about 900 cm-1 show distinct composition dependence, following the local structure modifications as revealed by XAS.

Original language	English
Pages (from-to)	1201-1205
Number of pages	5
Journal	Low Temperature Physics
Volume	46
Issue number	12
DOIs	https://doi.org/10.1063/10.0002474
Publication status	Published - 1 Dec 2020

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title = "X-ray absorption and Raman spectroscopy studies of tungstates solid solutions ZncNi1−cWO4 (c = 0.0−1.0)",

abstract = "The influence of thermal disorder and static distortions on the local structure in microcrystalline solid solutions of tungstates ZncNi1-cWO4 with c = 0.0-1.0 was investigated using temperature-dependent (10-300 K) x-ray absorption spectroscopy (XAS) at the W L3-edge. In addition, the vibrational properties of the solid solutions were studied by Raman spectroscopy. Our results indicate that the formation of solid solutions is accompanied by strong structural relaxations leading to the changes in the [WO6] octahedra distortions, which, in turn, affect the vibrational properties of tungstates. In particular, the frequency and band width of the highest W - O stretching mode at about 900 cm-1 show distinct composition dependence, following the local structure modifications as revealed by XAS.",

author = "Aleksandrs Kaļinko and Georgijs Bakradze and Aleksejs Kuzmins and Bakradze Georgijs and Kuzmin A.",

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T1 - X-ray absorption and Raman spectroscopy studies of tungstates solid solutions ZncNi1−cWO4 (c = 0.0−1.0)

AU - Kaļinko, Aleksandrs

AU - Bakradze, Georgijs

AU - Kuzmins, Aleksejs

AU - Georgijs, Bakradze

AU - A., Kuzmin

PY - 2020/12/1

Y1 - 2020/12/1

N2 - The influence of thermal disorder and static distortions on the local structure in microcrystalline solid solutions of tungstates ZncNi1-cWO4 with c = 0.0-1.0 was investigated using temperature-dependent (10-300 K) x-ray absorption spectroscopy (XAS) at the W L3-edge. In addition, the vibrational properties of the solid solutions were studied by Raman spectroscopy. Our results indicate that the formation of solid solutions is accompanied by strong structural relaxations leading to the changes in the [WO6] octahedra distortions, which, in turn, affect the vibrational properties of tungstates. In particular, the frequency and band width of the highest W - O stretching mode at about 900 cm-1 show distinct composition dependence, following the local structure modifications as revealed by XAS.

AB - The influence of thermal disorder and static distortions on the local structure in microcrystalline solid solutions of tungstates ZncNi1-cWO4 with c = 0.0-1.0 was investigated using temperature-dependent (10-300 K) x-ray absorption spectroscopy (XAS) at the W L3-edge. In addition, the vibrational properties of the solid solutions were studied by Raman spectroscopy. Our results indicate that the formation of solid solutions is accompanied by strong structural relaxations leading to the changes in the [WO6] octahedra distortions, which, in turn, affect the vibrational properties of tungstates. In particular, the frequency and band width of the highest W - O stretching mode at about 900 cm-1 show distinct composition dependence, following the local structure modifications as revealed by XAS.

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UR - https://www.scopus.com/pages/publications/85099232943

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DO - 10.1063/10.0002474

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JO - Low Temperature Physics

JF - Low Temperature Physics

IS - 12

ER -

X-ray absorption and Raman spectroscopy studies of tungstates solid solutions ZncNi1−cWO4 (c = 0.0−1.0)

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