.png){kind=icon}
.png){kind=icon}
Return
Monte Carlo investigation of magnetic-dielectric analogies in hexagonal mixed-spin core-shell nanostructures
.png){kind=icon}
PRE
AI
L
M
F
E
C
S
DOI：10.1007/s11051-026-06624-y.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
In this work, the dielectric behavior and thermal stability of the C5S4 structure is studied within the Blume-Capel framework, by modeling the nanostructure as a mixed-spin core-shell nanostructure. The magnetic formalism of the model is adapted to describe dielectric properties, taking into consideration the effect of an external electric field on the polarization of the nanostructure. The ground-state phase diagram consists of several stable and electrically symmetric spin configurations. A ferrielectric ordered phase with evident first-order phase transition occurs at a very low temperature, driving the polarization of the shell. Besides, a reentrant dielectric transition occurs in specific ranges of intermediate temperature. The analysis of key interaction parameters has revealed that intra-core coupling and the external electric field increase the thermal stability of the ferrielectric phase, while the crystal-field anisotropy and inter-sublattice coupling weaken it. These results are of some usefulness in understanding the stability mechanism of ferrielectric core-shell structures and supporting their use in tunable nano-memory and functional dielectric materials.
Keywords:
Core-shell structure
Magnetic properties
Dielectric properties
Magnetizion
Polarization
Monte Carlo simulations
Blume-Capel model
Mixed-spin nanostructure
Journal
IF:
2.6
Papers:
379
Citations:
1.3W
Organization
Cited Papers