5 papers
Effects of frustration and Dzyaloshinskii-Moriya interaction on the spin-1/2 anisotropic Heisenberg antiferromagnet with the application to La2CuO4
Milica Rutonjski, Milan Pantic, Milica Pavkov-Hrvojevic
We study the magnetic properties of the two-dimensional anisotropic antiferromagnetic spin-1/2 Heisenberg model with Dzyaloshinskii-Moriya interaction and in-plane frustration incl…
Influence of anharmonic convex interparticle potential and Shapiro steps in the opposite direction of driving force
Sonja Gombar, Petar Mali, Slobodan Radosevic +3
The response function and largest Lyapunov exponent analysis were applied to the driven overdamped Frenkel-Kontorova model with two types of anharmonic convex interparticle potenti…
Exciton dynamics in different aromatic hydrocarbon systems
Milica Rutonjski, Petar Mali, Slobodan Radosevic +3
The exciton dispersion is examined in the case of four selected prototypical molecular solids: pentacene,tetracene,picene,chrysene. The model parameters are determined by fitting t…
Complexity of Shapiro steps
Petar Mali, Andjela Sakota, Jasmina Tekic +3
We demonstrate on the example of the dc+ac driven overdamped Frenkel-Kontorova model that an easily calculable measure of complexity can be used for the examination of Shapiro step…
Dynamics of Frenkel excitons in pentacene
Sonja Gombar, Petar Mali, Milan Pantić +2
The dispersion relation for noninteracting excitons and the influence of perturbative correction is examined in the case of pentacene structure. The values of exchange integrals ar…