Magnetic Properties of the Spins-5/2 and 3/2 Ising Octahedral Chain: A Monte Carlo Simulation

SPIN ◽  
2018 ◽  
Vol 08 (04) ◽  
pp. 1850017
Author(s):  
A. Jabar ◽  
R. Masrour
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Magnetic Properties ◽  
Monte Carlo Simulations ◽  
Phase Diagrams ◽  
Ground State ◽  
Magnetic Hysteresis ◽  
Magnetic Susceptibilities ◽  
Crystal Fields ◽  
Mixed Spins

Spins-5/2 and 3/2 Ising octahedral chain with regularly alternating monomeric and square plaquette sites is investigated using Monte Carlo simulations. The ground state phase diagrams of octahedral chain have been found for different blocks [Formula: see text] and for a several reduced crystal fields. The magnetization and magnetic susceptibilities of the mixed spins Ising octahedral chain have been obtained. The variation of reduced the transition temperatures with 1/[Formula: see text] has been determined. The magnetic hysteresis cycles of the mixed spins Ising octahedral chain for several blocks, [Formula: see text], for several reduced crystal fields and reduced exchanges interactions for a weak a zero crystal field have been investigated.

Magnetic Properties Study of the Nano-Alloy Fe1+xCo1−x by Monte-Carlo Simulations

SPIN ◽  
2019 ◽  
Vol 09 (01) ◽  
pp. 1950002 ◽  
Author(s):  
I. El Housni ◽  
H. Labrim ◽  
N. El Mekkaoui ◽  
S. Idrissi ◽  
R. Khalladi ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Magnetic Properties ◽  
Monte Carlo Simulations ◽  
Phase Diagrams ◽  
Ground State ◽  
Exchange Coupling ◽  
Hysteresis Loops ◽  
Metropolis Algorithm ◽  
Spintronic Devices ◽  
Temperature Exchange

Motivated by spintronic devices and their applications, we engineer a model to investigate the magnetic properties of the magnetic nano-alloy Fe[Formula: see text]Co[Formula: see text]. Where [Formula: see text] is the fraction of iron atoms Fe substituted by the cobalt Co atoms, [Formula: see text] corresponds to 50% Fe atoms and 50% Co atoms, this compound is then called equiatomic FeCo. The purpose of this work is to apply the Monte-Carlo Simulations (MCS), under Metropolis algorithm to predict the magnetic properties of such system. In a first step, we propose a model describing this system including different exchange coupling interactions. Then, we establish and analyze the ground state phase diagrams, in different planes. For non-null temperature values, applied MCS under the Metropolis algorithm. The behavior of both the magnetizations and the susceptibilities are illustrated as a function of temperature. Also the effect of the different exchange coupling interactions is studied and discussed. The hysteresis loops are presented and analyzed for specific values of temperature, exchange coupling interactions and concentrations.

Magnetic properties of a tri-decorated graphene structure: Monte Carlo study

2016 ◽  
Vol 30 (32) ◽  
pp. 1650233
Author(s):  
A. Jabar ◽  
N. Tahiri ◽  
L. Bahmad ◽  
A. Benyoussef
Keyword(s):  
Monte Carlo ◽  
Magnetic Properties ◽  
Phase Diagrams ◽  
Ground State ◽  
Magnetic Hysteresis ◽  
Hysteresis Loops ◽  
Monte Carlo Study ◽  
Magnetic Hysteresis Loops ◽  
Reduced Temperature ◽  
Good Agreement

In this paper, we study the magnetic properties of a tri-decorated [Formula: see text] graphene structure using Monte Carlo simulations (MCS). Indeed, we first elaborate the ground state phase diagrams and then, we found that from [Formula: see text] phases, the only stable configurations are: [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text]. For low reduced temperature values, the partial magnetizations are found to be in good agreement with the corresponding ground state phase diagrams. The corresponding partial susceptibilities show a notable peak around the reduced temperature value 2.0 in the absence of the external magnetic field [Formula: see text] and crystal field [Formula: see text]. To complete this study, we present and discuss the magnetic hysteresis loops.

STUDY ON REGULAR DILUTIONS OF $S=\frac{1}{2}$ IMPURITY IN S=1 CHAINS BY QUANTUM MONTE CARLO SIMULATIONS

2003 ◽  
Vol 17 (31n32) ◽  
pp. 5951-5959 ◽  
Author(s):  
HUAWEN WANG ◽  
ZHAOXIN XU ◽  
HEPING YING ◽  
JUN ZHANG
Keyword(s):  
Monte Carlo ◽  
Magnetic Properties ◽  
Monte Carlo Simulations ◽  
Ground State ◽  
Quantum Monte Carlo ◽  
Cluster Algorithm ◽  
Unit Cell ◽  
Quantum Monte Carlo Simulations

We investigate the variant regularly diluted situations of [Formula: see text] in S=1 isotropic antiferromagnetic chains by the quantum Monte Carlo loop cluster algorithm. Our results manifest significant different magnetic properties in the ground state with respect to the odd (even) host S=1 spins in one unit cell with an impurity S=1/2, and the doped system gradually transits to the pure Haldane chain in two different tendencies with the decreasing of the impurity concentrations.

Magnetic properties and phase diagrams of the inter-metallic compound GdRhIn5 by Monte Carlo simulations

2018 ◽  
Vol 56 (6) ◽  
pp. 2937-2947 ◽  
Author(s):  
R. Khalladi ◽  
S. Mtougui ◽  
S. Idrissi ◽  
L. Bahmad ◽  
S. Ziti ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Magnetic Properties ◽  
Monte Carlo Simulations ◽  
Phase Diagrams ◽  
Inter Metallic Compound ◽  
Metallic Compound

Phase diagrams and magnetic properties of double perovskite Ba2CrMoO6

2015 ◽  
Vol 29 (27) ◽  
pp. 1550174 ◽  
Author(s):  
M. Ait-Tamerd ◽  
B. Abraime ◽  
K. El Maalam ◽  
A. Benyoussef ◽  
A. El Kenz ◽  
...  
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Magnetic Properties ◽  
Phase Diagrams ◽  
Mean Field ◽  
Magnetic Behavior ◽  
Double Perovskite ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
The Mean

In this paper, the Monte Carlo simulation (MCS) and the mean field approximation (MFA) methods have been used to study the magnetic properties of double perovskite Ba2CrMoO6 in the framework of the Ising model, which is important for a better understanding of the magnetic behavior of this material. This compound is constituted of two magnetic cubic sublattices: one occupied by Mo[Formula: see text] and other occupied Cr[Formula: see text], the critical exponents and phase diagrams for this compound are determined. The critical behavior, compensation temperature and susceptibility are also determined.

Magnetic properties of zigzag metallic chains: A Monte Carlo study

2017 ◽  
Vol 31 (06) ◽  
pp. 1750035
Author(s):  
A. Jabar ◽  
R. Masrour ◽  
M. Hamedoun ◽  
A. Benyoussef ◽  
E. K. Hlil
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Magnetic Properties ◽  
Phase Transitions ◽  
Crystal Field ◽  
Theoretical Calculations ◽  
Exchange Interactions ◽  
Monte Carlo Study ◽  
Hysteresis Cycle ◽  
Crystal Fields

The magnetic properties of zigzag metallic chains have been calculated based on the Monte Carlo simulation. The reduced transition temperatures and the magnetization have been obtained for different exchange interactions and for different crystal fields. The hysteresis cycle is obtained for different exchange interactions, temperatures and crystal field. The superparamagnetic behavior is obtained for a specific value of temperatures and crystal field. The second-order phase transitions are also observed. The obtained results are comparable with some given by experiment results and theoretical calculations.

WANG–LANDAU SIMULATION ON THERMODYNAMIC AND MAGNETIC PROPERTIES OF HONEYCOMB LATTICE

2011 ◽  
Vol 25 (26) ◽  
pp. 3435-3442
Author(s):  
XIAOYAN YAO
Keyword(s):  
Magnetic Field ◽  
Monte Carlo Simulation ◽  
Magnetic Properties ◽  
Free Energy ◽  
Magnetic Susceptibility ◽  
Magnetic Property ◽  
Ground State ◽  
Antiferromagnetic Order ◽  
Honeycomb Lattice ◽  
Antiferromagnetic Ising Model

Wang–Landau algorithm of Monte Carlo simulation is performed to understand the thermodynamic and magnetic properties of antiferromagnetic Ising model on honeycomb lattice. The internal energy, specific heat, free energy and entropy are calculated to present the thermodynamic behavior. For magnetic property, the magnetization and magnetic susceptibility are discussed at different temperature upon different magnetic field. The antiferromagnetic order is confirmed to be the ground state of the system, and it can be destroyed by a large magnetic field.

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