Thermodynamic functions of three-dimensional ising model near the phase transition point with allowance for corrections to scaling. II. The case T

1991 ◽  
Vol 87 (3) ◽  
pp. 641-656 ◽  
Author(s):  
M. P. Kozlovskii ◽  
I. V. Pylyuk ◽  
I. R. Yukhnovskii
Keyword(s):  
Phase Transition ◽  
Ising Model ◽  
Thermodynamic Functions ◽  
Transition Point ◽  
Three Dimensional ◽  
Phase Transition Point ◽  
Corrections To Scaling

scholarly journals Декорированная изинговская квадратная решетка в магнитном поле

2020 ◽  
Vol 62 (5) ◽  
pp. 683
Author(s):  
Ф.А. Кассан-Оглы ◽  
А.И. Прошкин ◽  
А.К. Муртазаев ◽  
В.А. Мутайламов
Keyword(s):  
Magnetic Field ◽  
Phase Transition ◽  
Ising Model ◽  
External Magnetic Field ◽  
Initial Phase ◽  
Transition Point ◽  
Phase Transition Point ◽  
Square Lattice ◽  
Low Field ◽  
Exchange Parameters

Ising model on decorated square lattice is studied with arbitrary signs and values of exchange parameters in an external magnetic field. Comparison with the results of Ising madel on nondecorated square lattice is performed. It is shown that if magnetization increases antiferromagnetically then initial phase-transition-point gradually decreases up to the first frustration field and does not appear again even if further frustration fields apear. In the case of ferromagnetic type of magnetization increasing the phase transition disappears right away after switching on of magnetic field. In other words, an arbitrary low field completely suppresses the phase transition.

scholarly journals Распространение поверхностной магнитоупругой волны в ферромагнетике в области ориентационного фазового перехода

2020 ◽  
Vol 62 (6) ◽  
pp. 851
Author(s):  
И.В. Мальцев ◽  
И.В. Бычков ◽  
Д.А. Кузьмин ◽  
В.Г. Шавров
Keyword(s):  
Phase Transition ◽  
Group Velocity ◽  
Yttrium Iron Garnet ◽  
Transition Point ◽  
Phase Transition Point ◽  
Yttrium Iron ◽  
Orientational Phase Transition ◽  
Velocity Changes ◽  
Iron Garnet ◽  
Magnetoelastic Surface

In this paper, we have studied the dependencies of group velocity and damping of magnetoelastic surface waves on the frequency at various external magnetic fields and propagation angles. The group velocity spikes occur at frequencies at which the damping peaks of the surface wave are detected. The behavior of a surface magnetoelastic wave in the vicinity of the orientational phase transition was also investigated. At the phase transition point, the group velocity changes by 1%. Dependences of the damping along the surface at various propagation angles point out on the nonreciprocal nature of the wave. All dependencies in this work were obtained using computer modeling. The parameters of the ferromagnet are taken typical for yttrium-iron garnet.

Dielectric lossbs near the phase transition point in DTGSel crystal

1989 ◽  
Vol 10 (6) ◽  
pp. 167-172
Author(s):  
S. A. Gridnev ◽  
B. N. Prasolov ◽  
O. V. Dybova
Keyword(s):  
Phase Transition ◽  
Transition Point ◽  
Phase Transition Point
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