Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volume 267, Issue 16, Pages 2563-2566Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nimb.2009.05.061
Keywords
Ion implantation; Highly charged ions; Quantum computing
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The formation of quantum computer test structures in silicon by ion implantation enables the characterization of spin readout mechanisms with ensembles of dopant atoms and the development of single atom devices. We briefly review recent results in the characterization of spin dependent transport and single ion doping and then discuss the diffusion and segregation behaviour of phosphorus, antimony and bismuth ions from low fluence, low energy implantations as characterized through depth profiling by secondary ion mass spectrometry (SIMS). Both phosphorus and bismuth are found to segregate to the SiO(2)/Si interface during activation anneals, while antimony diffusion is found to be minimal. An effect of the ion charge state on the range of antimony ions, (121)Sb(25+), in SiO(2)/Si is also discussed. (C) 2009 Elsevier B. V. All rights reserved.
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