TY - JOUR
T1 - Density-functional theory study of Au, Ag and Cu defects in germanium
AU - Carvalho, A.
AU - Coutinho, J.
AU - Jones, R.
AU - Silva, E.
AU - Öberg, S.
AU - Briddon, P.R.
AU - Da Silva, Estelina Lora
PY - 2008/10
Y1 - 2008/10
N2 - Gold, silver and copper defects in germanium are modeled using density functional theory. The structures and electrical properties of the substitutional metals are calculated in excellent agreement with experiment. Interstitial Au, Ag and Cu are found to be shallow donors, in disagreement with a previous assignment of Cu to a hole trap in the lower half of the gap. Substitutional-interstitial metal (M - M) pairs and metal-vacancy pairs (M - V) are also investigated.
AB - Gold, silver and copper defects in germanium are modeled using density functional theory. The structures and electrical properties of the substitutional metals are calculated in excellent agreement with experiment. Interstitial Au, Ag and Cu are found to be shallow donors, in disagreement with a previous assignment of Cu to a hole trap in the lower half of the gap. Substitutional-interstitial metal (M - M) pairs and metal-vacancy pairs (M - V) are also investigated.
UR - http://www.scopus.com/inward/record.url?scp=70349784098&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1016/j.mssp.2008.10.007
U2 - 10.1016/j.mssp.2008.10.007
DO - 10.1016/j.mssp.2008.10.007
M3 - Article
AN - SCOPUS:70349784098
SN - 1369-8001
VL - 11
SP - 340
EP - 343
JO - Materials Science in Semiconductor Processing
JF - Materials Science in Semiconductor Processing
IS - 5-6
ER -