Výsledky vyhledávání - "Tóbik, Jaroslav"

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Free-energy landscapes in magnetic systems from metadynamics

Autor: Tobik, Jaroslav, Martonak, Roman, Cambel, Vladimir

Publikováno v: Phys. Rev. B 96, 140413 (2017)

Knowledge of free energy barriers separating different states is critically important for assessment of long-term stability of information stored in magnetic devices. This information, however, is not directly accessible by standard simulations of mi

Externí odkaz: http://arxiv.org/abs/1706.10216

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Dynamics of Vortex Nucleation in Nanomagnets with Broken Symmetry

Autor: Tobik, Jaroslav, Cambel, Vladimir, Karapetrov, Goran

We investigate fundamental processes that govern dynamics of vortex nucleation in sub-100 nm mesoscopic magnets. We focus on a structure with broken symmetry - Pacman-like nanomagnet shape - in which we study micromagnetic behavior both by means of a

Externí odkaz: http://arxiv.org/abs/1203.4191

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Raman Tensor Calculation for Magnesium Phthalocyanine

Autor: Tobik, Jaroslav, Tosatti, Erio

We present ab-initio density functional (DFT) calculations of the vibrational spectra of neutral Magnesium phthalocyanine (MgPc) molecule and of its Raman scattering intensities.
Comment: 9 pages including 3 figures

Externí odkaz: http://arxiv.org/abs/cond-mat/0511189

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Strong Correlations in Electron Doped Phthalocyanine Conductors Near Half Filling

Autor: Tosatti, Erio, Fabrizio, Michele, Tobik, Jaroslav, Santoro, Giuseppe E.

We propose that electron doped nontransition metal-phthalocyanines (MPc) like ZnPc and MgPc, similar to those very recently reported, should constitute novel strongly correlated metals. Due to orbital degeneracy, Jahn-Teller coupling and Hund's rule

Externí odkaz: http://arxiv.org/abs/cond-mat/0406639

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Electric fields with ultrasoft pseudo-potentials: applications to benzene and anthracene

Autor: Tobik, Jaroslav, Corso, Andrea Dal

We present density functional perturbation theory for electric field perturbations and ultra-soft pseudopotentials. Applications to benzene and anthracene molecules and surfaces are reported as examples. We point out several issues concerning the eva

Externí odkaz: http://arxiv.org/abs/cond-mat/0403291

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