Fluorine clustering and diffusion in silicon: Ab initio calculations and kinetic Monte Carlo model

Author(s):  
Kilian Vollenweider ◽  
Beat Sahli ◽  
Nikolas Zographos ◽  
Christoph Zechner
2005 ◽  
Vol 237-240 ◽  
pp. 1129-1134
Author(s):  
Mariya G. Ganchenkova ◽  
V.A. Borodin ◽  
Risto M. Nieminen

In this paper we discuss possible mechanisms of PV annealing in Si. Our approach includes a combination of density functional theory and lattice kinetic Monte-Carlo (LKMC) simulations. The density functional theory is used to find the binding energies and jump barriers for P-V pair at different separations (from one to three interatomic bonds between complex constituents) and in different charge states. The mobility of the complex is simulated by LKMC with event probabilities calculated based on the energies from ab-initio calculations. .


2005 ◽  
Vol 169 (1-3) ◽  
pp. 50-53 ◽  
Author(s):  
M.C. Righi ◽  
C.A. Pignedoli ◽  
R. Di Felice ◽  
C.M. Bertoni ◽  
A. Catellani

2009 ◽  
Vol 1215 ◽  
Author(s):  
Tomoaki Suzudo ◽  
Masatake Yamaguchi ◽  
Hideo Kaburaki ◽  
Ken-ichi Ebihara

AbstractWe applied ab initio calculation and an object kinetic Monte Carlo modeling to the study of He-vacancy cluster nucleation under irradiation in bcc and fcc Fe, which are surrogate materials for ferritic/martensitic and austenitic steels, respectively. The ab initio calculations provided parameters for the object kinetic Monte Carlo model, such as the migration energies of point defects and the dissociation energies of He and vacancy to He-vacancy clusters. We specially focused on the simulation of high He/dpa irradiation such as He-implantation into the materials and tracked the nucleation of clusters and the fate of point defects such as SIAs, vacancies, and He atoms. We found no major difference of He-vacancy cluster nucleation between bcc and fcc Fe when we ignore the intracascade clustering even if the migration energies of point defects are significantly different between the two crystals.


2011 ◽  
Vol 10 (04n05) ◽  
pp. 973-977 ◽  
Author(s):  
P. JEGADEESAN ◽  
D. MURALI ◽  
B. K. PANIGRAHI ◽  
M. C. VALSAKUMAR ◽  
C. S. SUNDAR

We have employed Lattice Kinetic Monte Carlo (LKMC) technique to understand the kinetics of formation, as well as the spatial and size distributions of oxide nanoclusters in bcc Fe . The basic energy parameters for the LKMC were obtained from ab initio calculations. At 1050 K, we observed formation of ~ 2 nm nanoclusters highly enriched with Y and O . Ti is found to refine the size of nanoclusters, which is in accord with available experimental results.


1997 ◽  
Vol 55 (7) ◽  
pp. 4649-4658 ◽  
Author(s):  
Michelle R. Radeke ◽  
Emily A. Carter

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