Magnetocaloric effect and magnetic behavior of polyphenylene dendrimers alternate layers of a mixed spin (7/2, 2): A Monte Carlo investigation

M. Jerrari, R. Masrour and T. Sahdane

Physica A: Statistical Mechanics and its Applications, 2025, vol. 671, issue C

Abstract: In this investigation, through the Monte Carlo simulation, we have studied the magnetocaloric effect and the magnetic behavior of the polyphenylene dendrimers' alternate layers with mixed spins 7/2 and 2. The established ground state of this system has been given and discussed. Additionally, we determine that the reduced temperature (tc) varies with changes in the number of layers (L) and reduced exchange interaction(RSS). Also, the influence of the parameter’s physique L, RSS, reduced exchange interaction(Rσσ), and the reduced crystal field (d) on the total magnetizations and the hysteresis loop are analyzed. In fact, with higher reduced external magnetic fields (H/JSσ), the maximum Cp decreases, and the magnetic entropy change (-ΔSm) and the adiabatic temperature change (ΔTa) increase. Finally, the relative cooling power (RCP) rises with increasing values of H/JSσ and RCP diminishes with increasing RSS or |d|.

Keywords: Monte Carlo computations; Polyphenylene dendrimers alternate layers; Phase diagrams; Reduced critical temperature; Magnetic properties and magnetocaloric (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0378437125003152
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:671:y:2025:i:c:s0378437125003152

DOI: 10.1016/j.physa.2025.130663

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().