THE STRUCTURE AND VIBRATIONAL-MODES OF H-C(AS) PAIRS IN PASSIVATED ALAS GROWN BY CHEMICAL BEAM EPITAXY

Authors
PRITCHARD RE DAVIDSON BR NEWMAN RC BULLOUGH TJ JOYCE TB JONES R OBERG S
Citation
Re. Pritchard et al., THE STRUCTURE AND VIBRATIONAL-MODES OF H-C(AS) PAIRS IN PASSIVATED ALAS GROWN BY CHEMICAL BEAM EPITAXY, Semiconductor science and technology, 9(2), 1994, pp. 140-149
Citations number
31
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Condensed Matter","Material Science
Journal title
Semiconductor science and technology → ACNP
ISSN journal
02681242
Volume
9
Issue
2
Year of publication
1994
Pages
140 - 149
Database
ISI
SICI code
0268-1242(1994)9:2<140:TSAVOH>2.0.ZU;2-Y
Abstract
AlAs layers grown by chemical beam epitaxy (CBE) and doped with either C-12 or C-13 have been passivated with hydrogen or deuterium. Infrare d absorption lines due to hydrogen stretch modes, symmetric A1 modes a nd 'carbon-like' E modes of H-C(As) and D-C(As) pairs have been assign ed for both carbon isotopes. Comparisons have been made with previous measurements made on H-C(As) centres in GaAs:C and with simple harmoni c models, and the results are shown to be in agreement with ab initio local density functional calculations.