RAMAN LINEWIDTHS IN FERROELECTRIC NANO2

Authors
SIGNORINI GF BECUCCI M CASTELLUCCI E
Citation
Gf. Signorini et al., RAMAN LINEWIDTHS IN FERROELECTRIC NANO2, Chemical physics, 187(3), 1994, pp. 263-273
Citations number
31
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics → ACNP
ISSN journal
03010104
Volume
187
Issue
3
Year of publication
1994
Pages
263 - 273
Database
ISI
SICI code
0301-0104(1994)187:3<263:RLIFN>2.0.ZU;2-O
Abstract
The widths of lattice and internal Raman lines in ferroelectric NaNO2 were measured in the temperature interval 4-200 K. Calculations of the double-vertex self-energy series based on an atom/atom and charge/cha rge potential agree well with observations. A better fit of data is ob tained if anharmonic constants are treated as adjustable parameters.