Dynamic magnetic and hysteretic properties of the different type core/shell nanostructures: the effect of geometry of wire shape

ABSTRACT

In the present study, we examine by comparison the dynamic magnetic and hysteretic properties of nanostructures with different magnetic core/shell particles confined within a shape structure of the wire. The model of nanostructures with core = spin-1 and shell = spin-3/2, namely cylindrical, cubic and hexagonal nanowire, is proposed for studying the effect of the geometry of wire shape on the magnetic and hysteretic properties. The results were obtained by mean-field theory as well as Glauber-type stochastic dynamics, and focused the response to thermal and hysteretic behaviours of systems. All results display dynamic magnetic properties of the nanostructure strongly dependent on the geometry of wire shape. Moreover, temperature and crystal field are proposed as the important factors affecting the dynamic properties of wire systems.

KEYWORDS:

• Magnetic core/shell nanostructures
• Ising model
• Glauber-type stochastic dynamics
• dynamic magnetic properties
• hysteretic properties

Additional information

Funding

This work was supported by the Scientific and Technological Research Council of Turkey (Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TUBITAK) [grant number 116R004] and Erciyes University Research Funds [grant number FDA-2017-770].