Monte Carlo study of magnetic phase transitions in a model forFeCl2

1993 ◽  
Vol 47 (5) ◽  
pp. 2602-2606 ◽  
Author(s):  
Laura Hernández ◽  
H. T. Diep ◽  
D. Bertrand
Keyword(s):  
Monte Carlo ◽  
Phase Transitions ◽  
Magnetic Phase ◽  
Monte Carlo Study ◽  
Magnetic Phase Transitions

Monte Carlo Study of Magnetostructural Phase Transitions in Ni50Mn25+xSb25-x Heusler Alloys

2009 ◽  
Vol 154 ◽  
pp. 139-144 ◽  
Author(s):  
V.V. Sokolovskiy ◽  
Vasiliy D. Buchelnikov ◽  
Sergey Taskaev
Keyword(s):  
Monte Carlo ◽  
Phase Transitions ◽  
Monte Carlo Simulations ◽  
Magnetic Phase ◽  
Heusler Alloys ◽  
Monte Carlo Study ◽  
Magnetic Phase Transitions ◽  
Antiferromagnetic Exchange ◽  
Magnetization Curves ◽  
Model Hamiltonian

On the basis of Monte Carlo simulations, we investigate the temperature dependence of magnetization of Ni-Mn-Sb Heusler alloys, in which the part of the Mn atoms interact antiferromagnetically. It is shown that this antiferromagnetic exchange is responsible for existence of several magnetic phase transitions in the Heusler alloys. For a certain set of parameters of the model Hamiltonian we obtain coupled martensitic and magnetic phase transitions. Results of simulations agree in an excellent way with the experimental magnetization curves.

MONTE CARLO STUDY OF MULTILAYER FILMS USING ANISOTROPIC EXTENDED HEISENBERG MODEL WITH DIPOLAR INTERACTION

2009 ◽  
Vol 23 (04) ◽  
pp. 643-653 ◽  
Author(s):  
E. BÎRSAN ◽  
A. DOBRITA ◽  
R. CHIS
Keyword(s):  
Monte Carlo ◽  
Phase Transitions ◽  
Basal Layer ◽  
Magnetic Ordering ◽  
Monte Carlo Study ◽  
Magnetic Phase Transitions ◽  
Physical Parameters ◽  
Critical Temperatures ◽  
Two Phase ◽  
Antiferromagnetic Ordering

Using the Monte Carlo technique, we study the multilayer Heisenberg thin film with long range dipolar interactions, in order to investigate the antiferromagnetic basal layer influence on the superior layers. We find out that the basal layer's influence over the magnetic ordering of the superior layers is dependent on the distance between that layer and the basal layer, and the exchange anisotropy discontinuity has a direct effect on the critical temperatures associated with the magnetic phase transitions that can occur for different settings of the investigated system physical parameters. In the intermediate dipolar parameter region, due to antiferromagnetic ordering of the basal layer spins, we found out the mixed phase appearance in the superior layers and we relieved two phase transitions which can take place in the system, the critical temperature we obtained by studying the specific heat and the magnetic susceptibility, respectively, being in good agreement.

Magnetoresistivity and Monte Carlo studies of magnetic phase transitions inC6Eu

1986 ◽  
Vol 34 (1) ◽  
pp. 423-430 ◽  
Author(s):  
S. T. Chen ◽  
M. S. Dresselhaus ◽  
G. Dresselhaus ◽  
H. Suematsu ◽  
H. Minemoto ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Phase Transitions ◽  
Magnetic Phase ◽  
Magnetic Phase Transitions ◽  
Monte Carlo Studies
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