Magnetic phase transition at a surface: Mean-field theory

1974 ◽  
Vol 10 (7) ◽  
pp. 2928-2933 ◽  
Author(s):  
Pradeep Kumar
Keyword(s):  
Field Theory ◽  
Phase Transition ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Mean Field Theory ◽  
Mean Field

scholarly journals Reentrance Phenomenon of a Mixed Spin Ising Model

2015 ◽  
Vol 56 ◽  
pp. 31-36
Author(s):  
Hadey K. Mohamad
Keyword(s):  
Field Theory ◽  
Phase Transition ◽  
Magnetic Phase ◽  
Mean Field Theory ◽  
Mean Field ◽  
Lattice Disorder ◽  
Cubic Lattice ◽  
Mixed Spin ◽  
Simple Cubic ◽  
Simple Cubic Lattice

A reentrant magnetic phase transition in molecular based magnet AFeIIFeIII(C2O4)3[A=N(n-CnH2n+1)4, n=3-5] is investigated by the use of Mean-Field Theory (MFT) for a mixed spin-2 and spin-5/2 Ising system on a simple cubic lattice. It is found that a double-entrant ferrimagnetic behaviour in the mixed-spin system depends on the negative values of the anisotropies in the order-disorder system for the two sublattices of the mixture. It is shown using numerical calculations that this phenomenon is strongly affected by the magnetic anisotropy and lattice disorder.

scholarly journals Miscibility studies of two twist-bend nematic liquid crystal dimers with different average molecular curvatures. A comparison between experimental data and predictions of a Landau mean-field theory for the NTB–N phase transition

2016 ◽  
Vol 18 (6) ◽  
pp. 4394-4404 ◽  
Author(s):  
D. O. López ◽  
B. Robles-Hernández ◽  
J. Salud ◽  
M. R. de la Fuente ◽  
N. Sebastián ◽  
...  
Keyword(s):  
Field Theory ◽  
Experimental Data ◽  
Phase Transition ◽  
Liquid Crystal ◽  
Nematic Phase ◽  
Mean Field Theory ◽  
Mean Field ◽  
Landau Model ◽  
First Order ◽  
Miscibility Studies

We have developed a Landau model that predicts a first order twist-bend nematic–nematic phase transition.

scholarly journals Correction: Miscibility studies of two twist-bend nematic liquid crystal dimers with different average molecular curvatures. A comparison between experimental data and predictions of a Landau mean-field theory for the NTB–N phase transition

2016 ◽  
Vol 18 (9) ◽  
pp. 6955-6955 ◽  
Author(s):  
D. O. López ◽  
B. Robles-Hernández ◽  
J. Salud ◽  
M. R. de la Fuente ◽  
N. Sebastián ◽  
...  
Keyword(s):  
Field Theory ◽  
Experimental Data ◽  
Phase Transition ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Mean Field Theory ◽  
Mean Field ◽  
Chem Phys ◽  
Phys Chem Chem Phys ◽  
Miscibility Studies

Correction for ‘Miscibility studies of two twist-bend nematic liquid crystal dimers with different average molecular curvatures. A comparison between experimental data and predictions of a Landau mean-field theory for the NTB–N phase transition’ by D. O. López et al., Phys. Chem. Chem. Phys., 2016, 18, 4394–4404.

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