Low Temperature Physics: 35, 339 (2009); https://doi.org/10.1063/1.3117965 (4 pages)
Физика Низких Температур: Том 35, Выпуск 4 (Апрель 2009), c. 438-441    ( к оглавлению , назад )

Structure of nitrous oxide-carbon dioxide alloys

A.A. Solodovnik and V.V. Danchuk

B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine
E-mail: solodovnik@ilt.kharkov.ua

Received December 12, 2008


Structure of N2O–CO2 solid mixtures was investigated by transmission electron diffraction over the entire range of their mutual concentrations. In the temperature range 5–65 K the experimental data indicate no phase separation in these alloys. The average structure of the solutions belongs to the Pa3 symmetry. The behavior of the concentration dependence of the lattice parameter has a nonmonotonic character, displaying a sharp step, the positions of which on the concentration scale depends on the deposition temperature. A possible explanation of this phenomenon is suggested.

PACS: 78.55.Kz Solid organic materials;
PACS: 61.05.J– Electron diffraction and scattering.

Key words: molecular cryocrystals, N2O–CO2 alloys, electron diffraction.