Order parameter distribution of the random bond Ising ferromagnet with antiperiodic boundary conditions

1991 ◽  
Vol 69 (8) ◽  
pp. 5228-5230 ◽  
Author(s):  
R. E. Hetzel ◽  
R. N. Bhatt
Keyword(s):  
Boundary Conditions ◽  
Order Parameter ◽  
Parameter Distribution ◽  
Ising Ferromagnet

scholarly journals Boundary conditions for the Néel order parameter in a chiral antiferromagnetic slab

2021 ◽  
Vol 103 (13) ◽  
Author(s):  
Oleksandr V. Pylypovskyi ◽  
Artem V. Tomilo ◽  
Denis D. Sheka ◽  
Jürgen Fassbender ◽  
Denys Makarov
Keyword(s):  
Boundary Conditions ◽  
Order Parameter ◽  
Néel Order

Order parameter for the Ising ferromagnet

1968 ◽  
Vol 28 (6) ◽  
pp. 440-441 ◽  
Author(s):  
N.E. Frankel
Keyword(s):  
Order Parameter ◽  
Ising Ferromagnet

scholarly journals Order parameter profiles in a system with Neumann – Neumann boundary conditions

2018 ◽  
Vol 145 ◽  
pp. 01009 ◽  
Author(s):  
Vassil M. Vassilev ◽  
Daniel M. Dantchev ◽  
Peter A. Djondjorov
Keyword(s):  
Boundary Conditions ◽  
Order Parameter ◽  
Neumann Boundary ◽  
Elliptic Functions ◽  
Thermodynamic System ◽  
Neumann Boundary Conditions ◽  
Ginzburg Landau ◽  
One Dimensional ◽  
The One ◽  
Field Plane

In this article we consider a critical thermodynamic system with the shape of a thin film confined between two parallel planes. It is assumed that the state of the system at a given temperature and external ordering field is described by order-parameter profiles, which minimize the one-dimensional counterpart of the standard ϕ4 Ginzburg–Landau Hamiltonian and meet the so-called Neumann – Neumann boundary conditions. We give analytic representation of the extremals of this variational problem in terms ofWeierstrass elliptic functions. Then, depending on the temperature and ordering field we determine the minimizers and obtain the phase diagram in the temperature-field plane.

scholarly journals AXIAL AND OFF-AXIAL DYNAMIC TRANSITIONS IN UNIAXIALLY ANISOTROPIC HEISENBERG FERROMAGNET: A COMPARISON

2003 ◽  
Vol 14 (01) ◽  
pp. 49-59 ◽  
Author(s):  
MUKTISH ACHARYYA
Keyword(s):  
Magnetic Field ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Order Parameter ◽  
Heisenberg Ferromagnet ◽  
Axial Field ◽  
Ising Ferromagnet ◽  
High Anisotropy ◽  
Different Temperatures ◽  
Dynamic Transitions

Uniaxially anisotropic Heisenberg ferromagnet, in the presence of a magnetic field varying sinusoidally in time, is studied by Monte Carlo simulation. The axial (field applied only along the direction of anisotropy) and off-axial (field applied only along the direction which is perpendicular to the direction of anisotropy) dynamic transitions are studied. By studying the distribution of the dynamic order parameter component, it is observed that the axial transition is discontinuous for low anisotropy and becomes continuous in high anisotropy. The off-axial transition is found to be continuous for all values of anisotropy. In the infinite anisotropy limit, both types of transitions are compared with that observed in an Ising ferromagnet for the same value of the field and frequency. The infinitely anisotropic axial transition and dynamic transition in the Ising ferromagnet occur at different temperatures, whereas the infinitely anisotropic off-axial transition and the equilibrium ferro-para transition in the Ising model occur at the same temperature.

scholarly journals Universal scaling of the order-parameter distribution in strongly disordered superconductors

2013 ◽  
Vol 87 (18) ◽  
Author(s):  
G. Lemarié ◽  
A. Kamlapure ◽  
D. Bucheli ◽  
L. Benfatto ◽  
J. Lorenzana ◽  
...  
Keyword(s):  
Order Parameter ◽  
Parameter Distribution ◽  
Universal Scaling ◽  
Disordered Superconductors
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