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- Iurii V. Gudyma, Victor V. Ivashko
- Nanoscale research letters
- 2016

The qualitative analysis of the spin-crossover molecular solid with distortion effect is presented. A spin-crossover solid with effect of distortion is studied in the framework of the Ising-like model with two-order parameters under statistical approach, where the effect of elastic strain on inter-ion interaction is considered. These considerations lead to… (More)

- Iurii V Gudyma, Artur Iu Maksymov, Victor V Ivashko
- Nanoscale research letters
- 2014

The thermal transition accompanied by the variation of the molecular volume in nanoparticles of spin-crossover materials has been studied on the basis of microscopic Ising-like model solved using Monte Carlo methods. For considered model, we examined the spin-crossover phenomenon with applied hydrostatic pressure and thus was shown the possibility to shift… (More)

- Iurii Gudyma, Artur Maksymov, Mihai Dimian
- Physical review. E, Statistical, nonlinear, and…
- 2013

We study the stochastic macroscopic kinetics of photoinduced phase transitions in spin-crossover compounds assisted by white and colored Ornstein-Uhlenbeck noise. By using a phenomenological master equation obtained in the mean-field approach, the phase diagram is constructed based on the associated Lyapunov function. The stochastic behavior is then… (More)

- Iurii Gudyma, Artur Maksymov, Seiji Miyashita
- Physical review. E, Statistical, nonlinear, and…
- 2011

We study finite-size effects on properties of stationary state and also transient process of a bistable system with long range interaction. We adopt an Ising-like model with infinite range interaction (Husimi-Temperlay model). In particular, we formulate this problem in light of the Langevin equation and investigate study the effects of various types of… (More)

- Iurii Gudyma, Victor Ivashko, Andrej Bobák
- Nanoscale research letters
- 2017

We perform Monte Carlo simulations to analyze the surface and size effects in spin-crossover nanocrystals using an Ising-like model including surface and core intermolecular interactions. The consequences of downsizing effect on the transition temperature and the width of hysteresis as finger of the system cooperativity are discussed. The critical… (More)

- Iurii Gudyma, Artur Maksymov
- Applied optics
- 2012

We present the examination of light induced behavior of spin-crossover compounds. We focus on the switching phenomena between low-spin and high-spin states of the system. The connection between the Ising-like model and the macroscopic evolution equation has been analyzed. By means of numerical simulations, we found the dynamical potential changes, the… (More)

- Iurii V. Gudyma
- 2009

Suppression of selection among broken-symmetry states has been found in doublewell system resulting from two simultaneous correlated white noises, one additive and the other multiplicative. Symmetry-asymmetry-symmetry transition is reentrant as a function of the additive noise intensity for small multiplicative noise.

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