Kinetic phase transitions for the semi-infinite Ising model with bulk S=1 and a free surface σ=1/2 under an oscillating magnetic field

被引：4
|
作者：
Sabri, S. [1 ]
El Hachimi, A. G. [1 ]
El Yadari, M. [2 ]
Benyoussef, A. [3 ]
El Kenz, A. [1 ]
机构：
[1] Univ Mohammed 5, Fac Sci, Associe CNRST URAC 12, Dept Phys,Lab Condensed Matter & Interdisciplinar, BP 1014, Rabat, Morocco
[2] Moulay Ismael Univ, Dept Sci, Fac Polydisciplinaire, BP 509 Boutalamine, Errachidia 52000, Morocco
[3] Hassan II Acad Sci & Technol, Rabat, Morocco
来源：
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2018年 / 511卷
关键词：
Kinetic Ising model; Glauber dynamic; Phase space trajectories; Fixed point; Limit cycle; Semi-infinite; Oscillating external field; RANDOM CRYSTAL-FIELD; BLUME-CAPEL MODEL; BILAYER SYSTEM; MEAN-FIELD; SPIN-1; BEHAVIOR; DYNAMICS; DIAGRAMS; NANOTUBE; LATTICE;
D O I：
10.1016/j.physa.2018.05.130
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The kinetics of the semi-infinite Ising model in the presence of a time dependent oscillating external field is studied within the framework of the mean-field approach. We use the Glauber-type stochastic dynamics to describe the time evolution of this system. We present a variety of phases in semi infinite cubic ferromagnet with spin 1 at the bulk and spin 1/2 at the surface. The obtained Phase diagrams contains surface ordered phase (BP, SF), completely ordered phase (BF, SF) and completely disordered phase (BP, SP) that strongly depend on interaction parameters. The first or second order nature of the transitions is characterized by studying the thermal behaviors of the dynamic magnetizations. Furthermore, the system exhibits dynamical tricritical phenomenon. The magnetizations and phase space trajectories are given and discussed. (C) 2018 Elsevier B.V. All rights reserved.
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页码：207 / 217
页数：11
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