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Title: Structure of Nd{sub 5}Mo{sub 3}O{sub 16+δ} Single Crystals Doped with Tungsten

Abstract

The structure of tungsten-doped Nd{sub 5}Mo{sub 3}O{sub 16+δ} single crystals has been investigated by X-ray diffraction analysis, energy-dispersive X-ray spectroscopy (EDXS) microanalysis, and extended X-ray absorption fine-structure (EXAFS) spectroscopy. Tungsten atom, which partially replaces molybdenum atoms in the structure, is found to be located close (at a distance of 0.57 Å) to the Mo atom site. The interstitial oxygen atom О3 shifts from the crystallographic site with coordinates (0.5, 0.5, 0) to the site with coordinates (0.43, 0.48, 0.04) and complements the tungsten coordination to octahedral. The decrease in the unit-cell parameter and conductivity with an increase in the tungsten concentration in the sample is shown to be related to the fact that the interstitial oxygen atom О3 (responsible for conductivity) is in the coordination environment of tungsten atom.

Authors:
; ;  [1];  [2];  [1]; ; ;  [3]
  1. Russian Academy of Sciences, Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,” (Russian Federation)
  2. National Research Centre “Kurchatov Institute,” (Russian Federation)
  3. Moscow State University, Faculty of Physics (Russian Federation)
Publication Date:
OSTI Identifier:
22758249
Resource Type:
Journal Article
Journal Name:
Crystallography Reports
Additional Journal Information:
Journal Volume: 63; Journal Issue: 3; Other Information: Copyright (c) 2018 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7745
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; ABSORPTION SPECTROSCOPY; ATOMS; CONCENTRATION RATIO; CRYSTALLOGRAPHY; DOPED MATERIALS; FINE STRUCTURE; INTERSTITIALS; MICROANALYSIS; MOLYBDATES; MOLYBDENUM; MONOCRYSTALS; NEODYMIUM COMPOUNDS; OXYGEN; TUNGSTEN; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY

Citation Formats

Antipin, A. M., E-mail: antipin@physics.msu.ru, Sorokina, N. I., Alekseeva, O. A., Zubavichus, Y. V., Artemov, V. V., Kharitonova, E. P., Orlova, E. I., and Voronkova, V. I. Structure of Nd{sub 5}Mo{sub 3}O{sub 16+δ} Single Crystals Doped with Tungsten. United States: N. p., 2018. Web. doi:10.1134/S1063774518030021.
Antipin, A. M., E-mail: antipin@physics.msu.ru, Sorokina, N. I., Alekseeva, O. A., Zubavichus, Y. V., Artemov, V. V., Kharitonova, E. P., Orlova, E. I., & Voronkova, V. I. Structure of Nd{sub 5}Mo{sub 3}O{sub 16+δ} Single Crystals Doped with Tungsten. United States. doi:10.1134/S1063774518030021.
Antipin, A. M., E-mail: antipin@physics.msu.ru, Sorokina, N. I., Alekseeva, O. A., Zubavichus, Y. V., Artemov, V. V., Kharitonova, E. P., Orlova, E. I., and Voronkova, V. I. Tue . "Structure of Nd{sub 5}Mo{sub 3}O{sub 16+δ} Single Crystals Doped with Tungsten". United States. doi:10.1134/S1063774518030021.
@article{osti_22758249,
title = {Structure of Nd{sub 5}Mo{sub 3}O{sub 16+δ} Single Crystals Doped with Tungsten},
author = {Antipin, A. M., E-mail: antipin@physics.msu.ru and Sorokina, N. I. and Alekseeva, O. A. and Zubavichus, Y. V. and Artemov, V. V. and Kharitonova, E. P. and Orlova, E. I. and Voronkova, V. I.},
abstractNote = {The structure of tungsten-doped Nd{sub 5}Mo{sub 3}O{sub 16+δ} single crystals has been investigated by X-ray diffraction analysis, energy-dispersive X-ray spectroscopy (EDXS) microanalysis, and extended X-ray absorption fine-structure (EXAFS) spectroscopy. Tungsten atom, which partially replaces molybdenum atoms in the structure, is found to be located close (at a distance of 0.57 Å) to the Mo atom site. The interstitial oxygen atom О3 shifts from the crystallographic site with coordinates (0.5, 0.5, 0) to the site with coordinates (0.43, 0.48, 0.04) and complements the tungsten coordination to octahedral. The decrease in the unit-cell parameter and conductivity with an increase in the tungsten concentration in the sample is shown to be related to the fact that the interstitial oxygen atom О3 (responsible for conductivity) is in the coordination environment of tungsten atom.},
doi = {10.1134/S1063774518030021},
journal = {Crystallography Reports},
issn = {1063-7745},
number = 3,
volume = 63,
place = {United States},
year = {2018},
month = {5}
}