STABILITY OF D- CENTERS IN GAAS

Authors
GAYATHRI V BALASUBRAMANIAN S
Citation
V. Gayathri et S. Balasubramanian, STABILITY OF D- CENTERS IN GAAS, Physical review. B, Condensed matter, 48(16), 1993, pp. 12282-12284
Citations number
16
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
48
Issue
16
Year of publication
1993
Pages
12282 - 12284
Database
ISI
SICI code
0163-1829(1993)48:16<12282:SODCIG>2.0.ZU;2-U
Abstract
Some of the reasons for the lack of stability of the D- centers in bul k GaAs are considered using the idea of screening. Screening due to ot her impurity electrons tends to reduce the binding energy of D-centers much faster than that of neutral donor centers. Estimates of optical- matrix elements and the order of temperatures needed for the dissociat ion of the D- ion show why it is difficult to observe D-centers in bul k GaAs.