Compensation temperature in a dendrimer nano-system with a core–shell structure: Monte Carlo study. (January 2016)

• Record Type: Journal Article
• Authors: Belhaj, A.; Jabar, A.; Labrim, H.; Ziti, S.; Bahmad, L.; Laânab, L.; Benyoussef, A.
• Is Part Of: Solid state communications. Volume 226(2016)
• Page Start: 54
• Page End: 59
• Publication Date: 2016-01
• Subjects: A. Dendrimer -- B. Monte Carlo -- D. Magnetic properties; Solid state chemistry -- Periodicals; Solid state physics -- Periodicals; Chimie de l'état solide -- Périodiques; Physique de l'état solide -- Périodiques; 530.41
• DOI: 10.1016/j.ssc.2015.11.010
• Languages: English
• ISSNs: 0038-1098

Abstract

Abstract: In this work, we study the magnetic properties of a nanostructure based on an hexagonal core–shell geometry. The model is formed with core spins σ =3/2 and surface spins S =2. More precisely, we investigate the effect of the coupling exchange interactions in the absence/presence of both an external magnetic and crystal fields. In a first step, we elaborate the ground state phase diagrams, and then we discuss the stable phases. At different non null temperatures, we explore Monte Carlo to study computation and the magnetic properties. Among others, we find a compensation temperature between the spins σ and S . To close this study, we examine the hysteresis loop behaviors. Highlights: The magnetic properties of a nanostructure dendrimer system are studied. The Monte Carlo simulations are used. The compensation temperature is obtained for this nano-system. The effect of both a crystal field and external magnetic fields is examined. The hysteresis loops are established in order to more understand and study this system.