Thermal Expansion of Single-Crystal H2O and D2O Ice Ih

Autor: S. H. Masunaga, David T. W. Buckingham, Yi-Kuo Yu, John J. Neumeier
Rok vydání: 2018
Předmět:
Zdroj: Physical Review Letters. 121
ISSN: 1079-7114
0031-9007
DOI: 10.1103/physrevlett.121.185505
Popis: Thermal expansion of ${\mathrm{H}}_{2}\mathrm{O}$ and ${\mathrm{D}}_{2}\mathrm{O}$ ice Ih with relative resolution of 1 ppb is reported. A large transition in the thermal expansion coefficient at 101 K in ${\mathrm{H}}_{2}\mathrm{O}$ moves to 125 K in ${\mathrm{D}}_{2}\mathrm{O}$, revealing one of the largest-known isotope effects. Rotational oscillatory modes that couple poorly to phonons, i.e., lattice solitons, may be responsible.
Databáze: OpenAIRE