Ferrimagnetism in Two-Dimensional Mixed-Spin Ising Model

Abstract

We investigate the mixed-spin (spin-1/2 and spin-1) antiferromagnetic Ising model in two dimensions through a real-space renormalization group transformation. The model includes nearest and next-nearest neighbor interactions and is suitable to describe ferrimagnetic ordering. We present the finite-temperature phase diagram of the model. The presence of the second-neighbor bonds enlarge the ferrimagnetic phase. Our results do not indicate the existence of a tricritical point, contrary to previous effective-field calculations.

Ferrimagnetism and compensation temperature in spin-1/2 Ising trilayers

“…Mixed-spin Ising systems are often used as models to study ferrimagnetism. The occurrence of compensation in such systems has been verified in two-dimensional systems with a number of combinations of different spins (e. g. s = 1/2, 1, 3/2, 2, 5/2) [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Some single-spin systems, such as layered magnets composed of stacked non-equivalent ferromagnetic planes, have also been effectively used to model ferrimagnets.…”

Magnetic properties of the ferrimagnetic triangular nanotube with core–shell structure: A Monte Carlo study

“…On the other hand, the ferrimagnetic mixed spin Ising system has attracted a lot of interest and become the subject of various statistical mechanics and solidstate physics studies. Generally, these models are implemented to study the critical behavior [29], the magnetic properties [30], and the compensation temperatures [31,32] of various spins structures [33][34][35][36]. Among these models, the Ising model used in this work is the simplest, yet it has proven to be very effective in predicting the magnetic properties of ferromagnetic materials.…”

Compensation Temperature Behavior in a Nanotube Core-Shell Structure with RKKY Interactions: Monte Carlo Simulations

“…The shell can change the surface charge density, functional groups, reactivity, biocompatibility, and stability of these composite structures [15][16][17][18]. In recent papers, the authors paid attention to the investigation of the magnetic properties using Monte Carlo simulations and relevant results were found such as the compensation temperature and the transition temperature between the ferrimagnetic and paramagnetic phases [19][20][21][22][23][24][25][26][27][28][29][30][31].…”