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Ion channeling analysis of a Si/sub 1/minus//ital x//Ge/sub /ital x//(As)/Si strained layer

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.101364· OSTI ID:6388155
A strained layer of Si/sub 1/minus//ital x// Ge/sub /ital x// (As)/Si has been grown by molecular beam epitaxy (MBE) with the As dopant introduced by 1 keV ion implantation during growth. Analysis of the layer was made using secondary-ion mass spectrometry (SIMS), Rutherford backscattering (RBS), and proton-induced x-ray emission (PIXE)/channeling, using 2 MeV H/sup +/ ions. The layer thickness(/similar to/1.4 ..mu..m) and composition (/ital x//similar to/0.015; /ital n//sub As/ /similar to/6/times/10/sup 18/cm/sup /minus/3/) measurements by SIMS, RBS, and PIXE were in agreement. RBS,PIXE/channeling showed that the crystalline quality of the strained layer wasequivalent to that of the Si substrate. The substitutional fraction (/similar to/0.75) ofthe As dopant was determined by PIXE/channeling.
Research Organization:
Department of Physics, Brock University, St. Catharines, Ontario L2S 3A1, Canada(CA); University of Western Ontario, London, Ontario N6A 3K7, Canada; National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada; Department of Energy, Mines and Resources, Ottawa, Ontario K1A 0G1, Canada
OSTI ID:
6388155
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 54:25; ISSN APPLA
Country of Publication:
United States
Language:
English