Chaotic behavior of triatomic clusters

Download

index.pdf

Date

1997-01-01

Author

Yurtsever, E
Elmaci, N

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

191
views

0
downloads

The dynamics of triatomic clusters is investigated employing two-body Lennard-Jones and three-body Axilrod-Teller potential functions. Lyapunov exponents are calculated for the total energy range of -2.70 epsilon <E< -0.72 epsilon. The effects of the initial geometry of the cluster, its angular momentum, and the magnitude of three-body interactions are analyzed. It has been found that the dominating factor for the extent of chaotic behavior is the energy assigned to vibrational modes. The introduction of the rotational motion regularizes the dynamics in spite of a higher degree of nonlinearity. The three-body terms in the potential function affect the extent of the chaos in different manners depending on the initial geometry of the cluster. Finally, the time evolution of heterogeneous clusters generated by varying the size, mass, and the interaction strength of a single atom is observed. Their Lyapunov exponent spectra show that the additional nonlinearity reduces the chaotic behavior of the system in most of the cases.

Subject Keywords

Small carbon clusters, Small metal-clusters, Probabılıty-dıstrıbutıons, Molecular-dynamics, İlyapunov spectra, Fragmentatıon, Equilibrium, Transitions, Stability

URI

https://hdl.handle.net/11511/64691

Journal

PHYSICAL REVIEW A

DOI

https://doi.org/10.1103/physreva.55.538

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Stability of gold clusters: molecular-dynamics simulations Erkoç, Şakir (2000-09-01) Structural stability and energetics of gold clusters, Au, (n = 3-555), have been investigated by molecular-dynamics simulations. An empirical model potential energy function has been used in the simulations. Stable structures of the microclusters for n = 3-13 have been determined by molecular-dynamics simulation. It has been found that gold microclusters prefer to form three-dimensional compact structures. Molecular-dynamics simulations have also been performed for spherical gold clusters generated from FCC...
Model-theory of vector-spaces over unspecified fields Pierce, David (2009-06-01) Vector spaces over unspecified fields can be axiomatized as one-sorted structures, namely, abelian groups with the relation of parallelism. Parallelism is binary linear dependence. When equipped with the n-ary relation of linear dependence for some positive integer n, a vector-space is existentially closed if and only if it is n-dimensional over an algebraically closed field. In the signature with an n-ary predicate for linear dependence for each positive integer n, the theory of infinite-dimensional vector...
Scalar meson effects in radiative decays of vector mesons Kerman (Solmaz), Saime; Gökalp, Ahmet; Department of Physics (2003) The role of scalar mesons in radiative vector meson decays is investigated. The effects of scalar-isoscalar f_{0}(980) and scalar-isovector a_{0}(980) mesons are studied in the mechanism of the radiative Phi->pi{+}pi{-}gamma and phi->pi{0}eta gamma decays, respectively. A phenomenological approach is used to study the radiative phi->pi{+}p{-}gamma decay by considering the contributions of sigma-meson, rho-meson and f_{0}-meson. The interference effects between different contributions are analyzed and the br...
LATTICE POLYMERS - BEHAVIOR FAR FROM THETA-CONDITIONS YURTSEVER, E; ISSEVER, S (Elsevier BV, 1992-01-01) Two-dimensional Monte-Carlo simulations of lattice polymers were carried out employing Lennard-Jones (LJ) type intramolecular interactions. The shape-dependent properties of these polymers were studied over a large range of interaction parameters and temperatures. The variation of the critical constant was also analysed. Two-dimensional surfaces of sections were used to determine the portions of the parameter space which corresponded to theta-conditions. The behaviour of LJ polymers far from theta-condition...
Path Integral Solutions of PT-/Non-PT-Symmetric and Non-Hermitian Morse Potentials KANDIRMAZ, NALAN; Sever, Ramazan (2009-02-01) Path integral solutions are obtained for the PT-/non-PT-symmetric and non-Hermitian Morse potentials. Energy eigenvalues and the corresponding wave functions are obtained.

Citation Formats

E. Yurtsever and N. Elmaci, “Chaotic behavior of triatomic clusters,” PHYSICAL REVIEW A, pp. 538–544, 1997, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64691.