Reduction of the linewidths of deep luminescence centers in 28Si reveals fingerprints of the isotope constituents.
Dramatic reductions of the linewidths of well-known deep centers in 28Si reveal "isotopic fingerprints" of the constituents. The approximately 1014 meV Cu center, thought to be either a Cu pair or an isolated Cu, is shown to contain four Cu atoms, and the approximately 780 meV Ag center is shown to contain four Ag. The approximately 944 meV ;{*}Cu center, thought to be a different configuration of a Cu pair, in fact contains three Cu and one Ag, and a new two-Cu two-Ag center is found. The approximately 735 meV center, previously assigned to Fe, actually contains Au and three Cu. This suggests a family of four-atom (Cu, Ag, Au) centers.
Steger
M
M
Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6.
Yang
A
A
Stavrias
N
N
Thewalt
M L W
ML
Riemann
H
H
Abrosimov
N V
NV
Churbanov
M F
MF
Gusev
A V
AV
Bulanov
A D
AD
Kovalev
I D
ID
Kaliteevskii
A K
AK
Godisov
O N
ON
Becker
P
P
Pohl
H-J
HJ