Neutron Scattering Studies of Vapor Deposited Amorphous Ice

Autor:	Stewart F. Parker, Jichen Li, Alexander I. Kolesnikov, S. Dong, W. Hahn, R. S. Eccleston, I. F. Bailey
Rok vydání:	1997
Předmět:	Materials science Electron diffraction Neutron diffraction Amorphous ice Analytical chemistry General Physics and Astronomy Chemical vapor deposition Neutron scattering Atomic physics Physics::Atmospheric and Oceanic Physics Inelastic neutron scattering Spectral line Amorphous solid
Zdroj:	Physical Review Letters. 79:1869-1872
ISSN:	1079-7114 0031-9007
Popis:	Inelastic neutron scattering spectra were measured for amorphous ice ${\mathrm{H}}_{2}\mathrm{O}$ and ${\mathrm{D}}_{2}\mathrm{O}$ produced by low-temperature and low-rate vapor deposition. The data show that the deposition produced the low-density amorphous form of ice, i.e., the high-density amorphous ice observed by x-ray [A. H. Narten, C. G. Venkatesh, and S. A. Rice, J. Chem. Phys. 64, 1106 (1976)] and electron diffraction [P. Jenniskens and D. F. Blake, Science 265, 753 (1994)] under similar conditions was not detected. This result was confirmed by separate neutron diffraction experiments. Vibrational spectra of the deposited amorphous ice were dissimilar to that of ice ${\mathrm{I}}_{h}/{\mathrm{I}}_{c}$, as was believed previously.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ade41762e73443c81a8a7677aa475473 https://doi.org/10.1103/physrevlett.79.1869 Zobrazit plný text záznamu