STRUCTURAL AND PHASE TRANSFORMATIONS ON THE SURFACE OF SUPERPROTONIC CRYSTALS OF ACID SALTS OF POTASSIUM-AMMONIUM SULFATE

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Ашық рұқсат Ашық рұқсат
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Рұқсат жабық Тек жазылушылар үшін

Аннотация

The results of comprehensive studies of structural and phase transformations in
(K0.43(NH4)0.57)3H(SO4)2 superprotonic crystals under the influence of atmospheric moisture are presented. The real structure, composition, and thickness of the modified surface layers have been analyzed using scanning electron microscopy and X-ray microscopy. The local characteristics of nanostructures, formed on the freshly cleaved (001) crystal surface subjected to the electrostatic effect, have been investigated by conductive atomic force microscopy. A correlation has been established between the time changes in the structure, composition, and magnitude of the electrostatic potential of the crystal surface. The results are considered in the context of evaluation of the chemical stability of the samples and searching for the ways to optimize the compositions and functional properties of superprotonic compounds.

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Авторлар туралы

R. Gainutdinov

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,” Russian Academy of Sciences, Moscow, 119333 Russia

Email: alla@crys.ras.ru
Россия, Москва

A. Tolstikhina

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,” Russian Academy of Sciences, Moscow, 119333 Russia

Email: alla@crys.ras.ru
Россия, Москва

E. Selezneva

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,” Russian Academy of Sciences, Moscow, 119333 Russia

Email: alla@crys.ras.ru
Россия, Москва

I. Makarova

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,” Russian Academy of Sciences, Moscow, 119333 Russia

Email: alla@crys.ras.ru
Россия, Москва

A. Vasiliev

National Research Centre “Kurchatov Institute,” Moscow, 123182 Russia; Shubnikov Institute of Crystallography, Federal Scientific and Research Center “Crystallography and Photonics,”Russian Academy of Sciences, Moscow, 119333 Russia; Moscow Institute of Physics and Technology, Moscow oblast, Dolgoprudny, 141701 Russia

Хат алмасуға жауапты Автор.
Email: a.vasiliev56@gmail.com
Россия, Москва; Россия, Москва; Россия, Москва

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