Effect of the Sign of Anisotropy Constants on the Properties of the System of Interacting Ferromagnetic Nanoparticles

• Authors: M. Sadek , M. Marchwiany , M. Woinska , A. Majhofer , J. Gosk , A. Twardowski , J. Szczytko
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

75.40.Mg; 75.50.Tt; 75.75.-c

Discipline

• 75.75.-c: Magnetic properties of nanostructures
• 75.40.Mg: Numerical simulation studies
• 75.50.Tt: Fine-particle systems; nanocrystalline materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 1a
• Pages: A-53-A-55

Dates

published

2016-01

Contributors

author

M. Sadek

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, L. Pasteura 5, 02-093 Warszawa, Poland

author

M. Marchwiany

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, L. Pasteura 5, 02-093 Warszawa, Poland
• Interdisciplinary Centre for Mathematical and Computational Modelling, University of Warsaw, A. Pawińskiego 5a, 02-106 Warszawa, Poland

author

M. Woinska

• Faculty of Chemistry, University of Warsaw, L. Pasteura 1, 02-093 Warszawa, Poland

author

A. Majhofer

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, L. Pasteura 5, 02-093 Warszawa, Poland

author

J. Gosk

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warszawa, Poland

author

A. Twardowski

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, L. Pasteura 5, 02-093 Warszawa, Poland

author

J. Szczytko

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, L. Pasteura 5, 02-093 Warszawa, Poland

References

• [1] J. Sadowski, E. Janik, E. Łusakowska, J. Z. Domagała, S. Kret, P. Dłużewski, M. Adell, J. Kanski, L. Ilver, R. Brucas, M. Hanson, Appl. Phys. Lett. 87, 263114 (2005), doi: 10.1063/1.2158524
• [2a] A. Bonanni, M. Kiecana, C. Simbrunner, T. Li, M. Sawicki, M. Wegscheider, M. Quast, H. Przybylińska, A. Navarro-Quezada, R. Jakieła, A. Wołoś, W. Jantsch, T. Dietl, Phys. Rev. B 75, 125210 (2007), doi: 10.1103/PhysRevB.75.125210
• [2b] A. Bonnani, A. Navarro-Quezada, Tian Li, M. Wegscheider, Z. Matej, V. Holý, R.T. Lechner, G. Bauer, M. Rovezzi, F.D'Acapito, M. Kiecana, M. Sawicki, T. Dietl, Phys. Rev. Lett. 101, 135502 (2008), doi: 10.1103/PhysRevLett.101.135502
• [3] T. Dietl, H. Ohno, F. Matsukura, Phys. Rev. B 63, 195205 (2001), doi: 10.1103/PhysRevB.63.195205
• [4] R. Egli, J.Geophys. Res. 108, 2081 (2003), doi: 10.1029/2002JB002023
• [5] W. Sucksmith, J.E. Thompson, Proc. Roy. Soc. Lond. A 225, 362 (1954), doi: 10.1098/rspa.1954.0209
• [6] R.J. Joenk, Phys. Rev. 130, 932 (1963), doi: 10.1103/PhysRev.130.932
• [7] K. Binder, D. Heerman, Monte Carlo Simulations in Statistical Physics, Springer-Verlag, Berlin 1992, doi: 10.1007/978-3-662-30273-6
• [8] M. Woińska, A. Majhofer, J. Gosk, J. Szczytko, Acta Phys. Pol. A 122, 1019 (2012) http://przyrbwn.icm.edu.pl/APP/PDF/122/a122z6p13.pdf
• [9] M. Woińska, J. Szczytko, A. Majhofer, J. Gosk, K. Dziatkowski, A. Twardowski, Phys. Rev. B 88, 144421 (2013), doi: 10.1103/PhysRevB.88.144421

Identifiers

DOI

10.12693/APhysPolA.129.A-53