The dipole moments of H-2, HD and D-2 molecules and their concentrations in silicon

Citation
Rc. Newman et al., The dipole moments of H-2, HD and D-2 molecules and their concentrations in silicon, PHYSICA B, 274, 1999, pp. 164-166
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
274
Year of publication
1999
Pages
164 - 166
Database
ISI
SICI code
0921-4526(199912)274:<164:TDMOHH>2.0.ZU;2-N
Abstract
The relative strengths of infrared active modes of H-2, HD and D-2, present as H-2-O-i centres (v(1) and v(2)), or isolated molecules (v(3)) in Si pre -heat treated at 1300 degrees C in a 50 : 50 mixture of Hz and D-2 gases ar e reviewed. The effective charges eta(nu(1HH)) and eta(nu(2HH)) are equal t o eta(nu(1DD)) and eta(nu(2DD)), respectively, but eta(nu(3HH)) = 0.08e is larger than eta(nu(3DD)) = 0.05e. The relative strengths of the three HD mo des are smaller than expected by a factor of similar to 3. Possible reasons for this discrepancy, including isotopic exchange, are discussed. (C) 1999 Elsevier Science B.V. All rights reserved.