scholarly journals Mean field approximation is exact in the many-component limit of potts lattice gauge model

1981 ◽  
Vol 82 (3) ◽  
pp. 391-397 ◽  
Author(s):  
R. Kotecký
Keyword(s):  
Mean Field ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
Gauge Model ◽  
Lattice Gauge ◽  
The Many

The mean-field approximation in the SU(2) pure lattice gauge theory

1981 ◽  
Vol 105 (1) ◽  
pp. 46-50 ◽  
Author(s):  
J.M. Drouffe
Keyword(s):  
Gauge Theory ◽  
Lattice Gauge Theory ◽  
Mean Field ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
Lattice Gauge ◽  
The Mean

On the mean field approximation in lattice gauge theory

1982 ◽  
Vol 205 (2) ◽  
pp. 233-238 ◽  
Author(s):  
D. Brout ◽  
R. Brout ◽  
M. Poulain
Keyword(s):  
Gauge Theory ◽  
Lattice Gauge Theory ◽  
Mean Field ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
Lattice Gauge ◽  
The Mean

Mean-field approximation for Abelian and non-Abelian lattice gauge theories at finite temperature

1986 ◽  
Vol 33 (2) ◽  
pp. 526-533 ◽  
Author(s):  
Elbio Dagotto ◽  
Adrián Lugo ◽  
Adriana Moreo
Keyword(s):  
Finite Temperature ◽  
Gauge Theories ◽  
Mean Field ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
Lattice Gauge ◽  
Lattice Gauge Theories ◽  
Abelian Lattice

scholarly journals Corrections to the mean field approximation for lattice gauge theory

1983 ◽  
Vol 215 (1) ◽  
pp. 109-124 ◽  
Author(s):  
V. Allessandrini ◽  
V. Hakim ◽  
A. Krzywicki
Keyword(s):  
Gauge Theory ◽  
Lattice Gauge Theory ◽  
Mean Field ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
Lattice Gauge ◽  
The Mean

scholarly journals Mean-field approximation forZ N lattice gauge theory coupled to matter

1986 ◽  
Vol 91 (3) ◽  
pp. 318-318
Author(s):  
J. M. Alvarez ◽  
H. M. Socolovsky
Keyword(s):  
Gauge Theory ◽  
Lattice Gauge Theory ◽  
Mean Field ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
Lattice Gauge

scholarly journals Mean-field approximation to the many-bodySmatrix

1981 ◽  
Vol 23 (4) ◽  
pp. 1590-1611 ◽  
Author(s):  
Y. Alhassid ◽  
S. E. Koonin
Keyword(s):  
Mean Field ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
The Many

Gaussian corrections around the mean-field approximation for the mixed SU(2) lattice gauge theory

1985 ◽  
Vol 31 (6) ◽  
pp. 1465-1469 ◽  
Author(s):  
H. Ceccatto ◽  
Elbio Dagotto ◽  
Adriana Moreo
Keyword(s):  
Gauge Theory ◽  
Lattice Gauge Theory ◽  
Mean Field ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
Lattice Gauge ◽  
The Mean

Mean-field approximation forZ N lattice gauge theory coupled to matter

1985 ◽  
Vol 90 (1) ◽  
pp. 31-38 ◽  
Author(s):  
J. M. Alvarez H. ◽  
M. Socolovsky
Keyword(s):  
Gauge Theory ◽  
Lattice Gauge Theory ◽  
Mean Field ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
Lattice Gauge

The Determination of the Magnetoelectric Coupling Coefficient in Ferroelectric–Ferromagnetic Composite Based on PZT–Ferrite

2013 ◽  
Vol 58 (4) ◽  
pp. 1401-1403 ◽  
Author(s):  
J.A. Bartkowska ◽  
R. Zachariasz ◽  
D. Bochenek ◽  
J. Ilczuk
Keyword(s):  
Dielectric Permittivity ◽  
Coupling Coefficient ◽  
Mean Field ◽  
Field Approximation ◽  
Theoretical Description ◽  
Magnetoelectric Coupling ◽  
Mean Field Approximation ◽  
Dielectric Measurements ◽  
Temperature Dependences ◽  
Multiferroic Composite

Abstract In the present work, the magnetoelectric coupling coefficient, from the temperature dependences of the dielectric permittivity for the multiferroic composite was determined. The research material was ferroelectric-ferromagnetic composite on the based PZT and ferrite. We investigated the temperature dependences of the dielectric permittivity (") for the different frequency of measurement’s field. From the dielectric measurements we determined the temperature of phase transition from ferroelectric to paraelectric phase. For the theoretical description of the temperature dependence of the dielectric constant, the Hamiltonian of Alcantara, Gehring and Janssen was used. To investigate the dielectric properties of the multiferroic composite this Hamiltonian was expressed under the mean-field approximation. Based on dielectric measurements and theoretical considerations, the values of the magnetoelectric coupling coefficient were specified.

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