S(Q,OMEGA) MAPS OF KHCO3 SINGLE-CRYSTALS AND VIBRATIONAL WAVE-FUNCTIONS FOR THE HYDROGEN-BOND

Citation
S. Ikeda et al., S(Q,OMEGA) MAPS OF KHCO3 SINGLE-CRYSTALS AND VIBRATIONAL WAVE-FUNCTIONS FOR THE HYDROGEN-BOND, Physica. B, Condensed matter, 213, 1995, pp. 661-663
Citations number
5
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
09214526
Volume
213
Year of publication
1995
Pages
661 - 663
Database
ISI
SICI code
0921-4526(1995)213:<661:SMOKSA>2.0.ZU;2-6
Abstract
S(Q,omega) maps of intensity for different vibrational modes in KHCO3 single crystals were measured using the MARI spectrometer (Rutherford Appleton Laboratory, UK). The momentum transfer direction, Q, with res pect to the hydrogen-bond direction was changed continuously. Measurem ents have been performed, with momentum transfer either parallel or pe rpendicular to the dimer plane. S(Q(nu OH), (Q delta OH))(omega) and S (Q(nu OH), Q(gamma OH))(omega) contour maps are presented for various vibrational modes.