Diffusion-reaction mechanisms of nitriding species inSiO2
نویسندگان
چکیده
منابع مشابه
Pattern formation mechanisms in reaction-diffusion systems.
In systems undergoing chemical reaction and diffusion, a remarkable variety of spatially structured patterns, stationary or moving, local or global, can arise, many of them reminiscent of forms and phenomena seen in living systems. Chemical systems offer the advantage that one can often control the parameters that determine the patterns formed and can thereby probe fundamental issues about patt...
متن کاملp–species integrable reaction–diffusion processes
We consider a process in which there are p–species of particles, i.e. A1, A2, · · · , Ap, on an infinite one–dimensional lattice. Each particle Ai can diffuse to its right neighboring site with rate Di, if this site is not already occupied. Also they have the exchange interaction Aj +Ai → Ai +Aj with rate rij . We study the range of parameters (interactions) for which the model is integrable. T...
متن کاملAtomic-scale diffusion mechanisms via intermediate species
We theoretically investigate the relationship between impurity diffusion profiles and the underlying atomicscale diffusion mechanisms that occur via intermediate species in elemental semiconductors. We focus particularly on diffusion regimes characterized by short versus long diffusion times and low versus high transport capacities. Based on analytic derivations and numerical simulations, we sh...
متن کاملReaction-diffusion with a time-dependent reaction rate: the single-species diffusion-annihilation process
We study the single-species diffusion-annihilation process with a time-dependent reaction rate, λ(t) = λ0 t−ω . Scaling arguments show that there is a critical value of the decay exponent ωc(d) separating a reaction-limited regime for ω > ωc from a diffusion-limited regime for ω < ωc. The particle density displays a mean-field, ω-dependent, decay when the process is reaction-limited whereas it ...
متن کاملMultiscaling of correlation functions in single species reaction-diffusion systems.
We derive the multi-scaling of probability distributions of multi-particle configurations for the binary reaction-diffusion system in A + A --> O in d < or =2 and for the ternary system in 3A --> O in d=1. For the binary reaction we find that the probability Pt(N, Delta V) of finding N particles in a fixed volume element Delta V at time t decays in the limit of large time as (ln t/t)N(ln t)-N(N...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2004
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.70.125206