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Динаміка гратки кристалу Ag[8]SnSe[6]

Динаміка гратки кристалу Ag[8]SnSe[6]

Abstract

Проведено рентгеноструктурні дослідження аргіродиту Ag[8]SnSe[6], які показали, що матеріал кристалізується у орторомбічній структурі з просторовою групою Pmn21. Проведено теоретичний розрахунок спектрів комбінаційного розсіяння (СКР) та фононних спектрів аргіродиту. Проведено ідентифікацію піків, що проявляються у ІЧ-спектрах та СКР. Показано позицію атомів в елементарній комірці Ag[8]SnSe[6]. Проведено рентгеноструктурные исследования аргиродита Ag[8]SnSe[6], которые показали, что материал кристаллизуется в орторомбической структуре с пространственной группой Pmn21. Проведен теоретический расчет спектров комбинационного рассеяния (СКР) и фононных спектров аргиродита. Проведено идентификацию пиков, проявляющихся в ИК-спектрах и СКР. Показано позицию атомов в элементарной ячейке Ag[8]SnSe[6]. The synthesis and structure properties of Ag[8]SnSe[6] argyrodite are described. Argyrodite belongs to the orthorhombic space group Pmn21 with 15 atoms per primitive cell. Classification of the main phonon modes of crystal carried out. First-principles phonon-dispersion curves for argyrodite Ag[8]SnSe[6] are calculated. Peak position in Raman spectra and IR-spectra was clarified.

Country
Ukraine
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Keywords

аргиродит, халькогеніди, phonon spectra, selection rules, фононні спектри, правила отбора, фононні моди, халькогениды, аргіродит, chalcogenides, argyrodite, правила відбору, фононные моды, фононные спектры, phonon modes

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green