Isotopic substitution and defect doping have been used to alter the optical properties of two-level systems (TLS) in the two amorphous phases of a-H 2 O ice. A large TLS optical density of states is found for a-H 2 O and a-HOD in the high-density amorphous phase while a thirty times smaller value occurs for both in the low-density amorphous one. Our quantitative spectroscopic and thermal study bring out a number of new features, among them that LiCl doping of low-density amorphous ice increases its TLS optical density of states, its glass transition temperature and its fragility.
No takes yet. Share an insight, caveat, or question.
Agladze et al. (2001) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: