Autor: Woinska, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Monte Carlo Simulations of Ferromagnetic Nanocomposites
Autorzy:: Woińska, M.
Majhofer, A.
Gosk, J.
Szczytko, J.
Powiązania:: https://bibliotekanauki.pl/articles/1403635.pdf
Data publikacji:: 2012-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.40.Mg
75.50.Tt
75.75.-c
Opis:: We present results of Monte Carlo simulations of a model system of Co nanoparticles in an external magnetic field. In our simulations we take into account the interaction with the external magnetic field, the energy of crystallographic anisotropy and the dipole-dipole interactions between single domain nanoparticles. We apply the standard Metropolis algorithm to a cluster of 27 randomly distributed superparamagnetic Co nanoparticles. We investigate the dependence of blocking temperature $T_{B}$ on particle and cluster size.
Źródło:: Acta Physica Polonica A; 2012, 122, 6; 1019-1021
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Effect of the sign of anisotropy constants on the properties of the system of interacting ferromagnetic nanoparticles
Autorzy:: Sadek, M.
Marchwiany, M.
Woinska, M.
Majhofer, A.
Gosk, J.
Twardowski, A.
Szczytko, J.
Powiązania:: https://bibliotekanauki.pl/articles/1159850.pdf
Data publikacji:: 2016-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.40.Mg
75.50.Tt
75.75.-c
Opis:: We use the Monte Carlo simulation method to investigate the influence of the signs of magnetocrystalline anisotropy constants and the magnetic dipole-dipole interactions on the zero field cooled-field cooled magnetization experiments and hysteresis curves of a system of magnetic nanoparticles. Positive first cubic anisotropy constant K₁ results in larger blocking temperatures and larger coercive fields of a system, while the second anisotropy constant K₂ is practically of negligible importance for the phenomena investigated. Magnetic dipole-dipole interactions are important only in the most dense systems of particles and their effects practically disappear for systems where the distance between the closest particles exceeds three particle diameters.
Źródło:: Acta Physica Polonica A; 2016, 129, 1a; A-53-A-55
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja