Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Desai, Rashmi"'
Publikováno v:
Appl. Phys. Lett. 82, 4705 (2003)
We explore the morphological stability during the growth of strained multilayer structures in a dynamical model which describes the coupling of elastic fields, wetting effect, and deposition process. We quantitatively show the significant influence o
Externí odkaz:
http://arxiv.org/abs/cond-mat/0306715
Autor:
Huang, Zhi-Feng, Desai, Rashmi C.
Publikováno v:
Phys. Rev. B 67, 075416 (2003)
We investigate the stress-driven morphological instability of epitaxially growing multilayer films, which are coherent and dislocation-free. We construct a direct elastic analysis, from which we determine the elastic state of the system recursively i
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207691
Autor:
Huang, Zhi-Feng, Desai, Rashmi C.
Publikováno v:
Phys. Rev. B 65, 205419 (2002)
The mechanisms of stability or instability in the strained alloy film growth are of intense current interest to both theorists and experimentalists. We consider dislocation-free, coherent, growing alloy films which could exhibit a morphological insta
Externí odkaz:
http://arxiv.org/abs/cond-mat/0205494
Autor:
Huang, Zhi-Feng, Desai, Rashmi C.
Publikováno v:
Phys. Rev. B 65, 195421 (2002)
A continuum dynamical model is developed to determine the morphological and compositional instabilities on the free surface of heteroepitaxial alloy films in the absence of growth. We use linear stability analysis to study the early nonequilibrium pr
Externí odkaz:
http://arxiv.org/abs/cond-mat/0205493
Autor:
Chowdhury, Debashish, Desai, Rashmi C.
A Bus Route Model (BRM) can be defined on a one-dimensional lattice, where buses are represented by "particles" that are driven forward from one site to the next with each site representing a bus stop. We replace the random sequential updating rules
Externí odkaz:
http://arxiv.org/abs/cond-mat/0003212
Autor:
Schoenborn, Oliver, Desai, Rashmi C.
We show how the interface curvature autocorrelation function (ICAF) and associated structure factor (ICSF), of relevance in non-equilibrium pattern-formation problems where sharp interfaces are present, provide new and interesting information on doma
Externí odkaz:
http://arxiv.org/abs/cond-mat/9804236
Autor:
Schoenborn, Oliver, Desai, Rashmi C.
Publikováno v:
Journal of Statistical Physics, 95, 949-979 (1999)
An interface description and numerical simulations of model A kinetics are used for the first time to investigate the intra-surface kinetics of phase ordering on corrugated surfaces. Geometrical dynamical equations are derived for the domain interfac
Externí odkaz:
http://arxiv.org/abs/cond-mat/9804237
We obtain bounds on the decay exponent lambda of the autocorrelation function in phase ordering dynamics. For non-conserved order parameter, we recover the Fisher and Huse inequality, lambda > = d/2. If the order parameter is conserved we also find l
Externí odkaz:
http://arxiv.org/abs/cond-mat/9409108