Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Structure and phase transition peculiarities in solid nitrous oxide and attempts at their explaination
Репозиторій DSpace/Manakin
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Structure and phase transition peculiarities in solid nitrous oxide and attempts at their explaination
Тема:
9th International Conference on Cryocrystals and Quantum Crystals
Інший ID:
PACS: 61.50.–f, 78.30.–j, 78.30.Hv
Посилання:
Structure and phase transition peculiarities in solid nitrous oxide and attempts at their explaination / A. Drobyshev, A. Aldiyarov, E. Korshikov, V. Kurnosov, D. Sokolov, N. Tokmoldin // Физика низких температур. — 2013. — Т. 39, № 5. — С. 591–595. — Бібліогр.: 17 назв. — англ.
Підтримка:
The work is supported by Science Committee of Re-public of Kazakhstan, Grant IPC-43/2012.
Дата:
2013
Переглядів:
688
Завантажень:
315
Анотація:
Cryogenic vacuum deposited films of nitrous oxide were studied at the following conditions: a mirror-like silver-coated copper substrate; deposition temperature 16 K; gas phase pressure during deposition 10⁻³ Pa. Anal-ysis of the IR-spectrometric and thermodesorption data leads to the following conclusion. The transition from the amorphous to crystalline state in the vicinity of 40 K proceeds in several steps which reflect relaxation processes related to different molecular vibrations. The differences in the temperature intervals of the transitions are de-termined by the activation energies of relevant vibrations. It was shown that cryocondensation at 16 K is accom-panied by appearance of flashes on the condensate surface. Based on the uniform nature of the observed processes, a model based on several possible isomorphic molecular states of nitrous oxide is suggested.
