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Size effect in nonstoichiometric titanium monoxide and vanadium carbide nanocrystals measured by positron lifetime spectroscopy

Andrey Andreevich Rempel 1, 2, 3
Andrey Andreevich Rempel
, 
Al'bina Ahmetovna Valeeva 2, 3
Al'bina Ahmetovna Valeeva
, 
Alexey Semionovich Kurlov 2
Alexey Semionovich Kurlov
, 
Gregor Klinser 4
Gregor Klinser
, 
Wolfgang Sprengel 4
Wolfgang Sprengel
10.1016/j.mencom.2019.09.002
Published 2019-09-04
Communication , Volume 29, Issue 5, 486-488
4
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Rempel A. A. et al. Size effect in nonstoichiometric titanium monoxide and vanadium carbide nanocrystals measured by positron lifetime spectroscopy // Mendeleev Communications. 2019. Vol. 29. No. 5. pp. 486-488.
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Rempel A. A., Valeeva A. A., Kurlov A. S., Klinser G., Sprengel W. Size effect in nonstoichiometric titanium monoxide and vanadium carbide nanocrystals measured by positron lifetime spectroscopy // Mendeleev Communications. 2019. Vol. 29. No. 5. pp. 486-488.
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TY - JOUR
DO - 10.1016/j.mencom.2019.09.002
UR - https://mendcomm.colab.ws/publications/10.1016/j.mencom.2019.09.002
TI - Size effect in nonstoichiometric titanium monoxide and vanadium carbide nanocrystals measured by positron lifetime spectroscopy
T2 - Mendeleev Communications
AU - Rempel, Andrey Andreevich
AU - Valeeva, Al'bina Ahmetovna
AU - Kurlov, Alexey Semionovich
AU - Klinser, Gregor
AU - Sprengel, Wolfgang
PY - 2019
DA - 2019/09/04
PB - Mendeleev Communications
SP - 486-488
IS - 5
VL - 29
ER -
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@article{2019_Rempel,
author = {Andrey Andreevich Rempel and Al'bina Ahmetovna Valeeva and Alexey Semionovich Kurlov and Gregor Klinser and Wolfgang Sprengel},
title = {Size effect in nonstoichiometric titanium monoxide and vanadium carbide nanocrystals measured by positron lifetime spectroscopy},
journal = {Mendeleev Communications},
year = {2019},
volume = {29},
publisher = {Mendeleev Communications},
month = {Sep},
url = {https://mendcomm.colab.ws/publications/10.1016/j.mencom.2019.09.002},
number = {5},
pages = {486--488},
doi = {10.1016/j.mencom.2019.09.002}
}
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Rempel, Andrey Andreevich, et al. “Size effect in nonstoichiometric titanium monoxide and vanadium carbide nanocrystals measured by positron lifetime spectroscopy.” Mendeleev Communications, vol. 29, no. 5, Sep. 2019, pp. 486-488. https://mendcomm.colab.ws/publications/10.1016/j.mencom.2019.09.002.

Abstract

A size effect in nonstoichiometric titanium monoxide TiOy and vanadium carbide VCy nanocrystals containing high concentrations of structural vacancies was detected by electron-positron annihilation. The effect consists of a considerable increase in the positron lifetime with the specific surface area. An analysis of the intensity of a long lifetime surface component in the positron annihilation spectra and the average positron lifetime for different nonstoichiometric compounds indicated a universal character of the observed size effect.

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