Acoustic anomaly in a pre-melting layer on a crystal surface studied by Brillouin scattering

Authors
Takesada, M Kasahara, M Yagi, T
Citation
M. Takesada et al., Acoustic anomaly in a pre-melting layer on a crystal surface studied by Brillouin scattering, J PHYS JPN, 69(3), 2000, pp. 643-646
Citations number
21
Categorie Soggetti
Physics
Journal title
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
ISSN journal
00319015 → ACNP
Volume
69
Issue
3
Year of publication
2000
Pages
643 - 646
Database
ISI
SICI code
0031-9015(200003)69:3<643:AAIAPL>2.0.ZU;2-8
Abstract
A new mode related to melting is found by Brillouin scattering of the hydro gen-bonded ferroelectric LiH3(SeO3)(2) crystal. The spectra of the mode sho w drastic precursor effects of the melting process, The anomalous increase of the spectral intensity and width has been observed in addition to the so ftening of the mode with temperature approaching the melting point. The new mode is assigned Co be a longitudinal acoustic-type mode in the pre-meltin g layer.