Mixed-spin Ising model and compensation temperature

2004 ◽  
Vol 69 (5) ◽  
Author(s):  
Maurício Godoy ◽  
Vanessa Souza Leite ◽  
Wagner Figueiredo
Keyword(s):  
Ising Model ◽  
Compensation Temperature ◽  
Mixed Spin

Random Crystal Field in a Mixed Spin S =  1/2 and S =  3/2 Ising Model by Renormalization Group Theory

2018 ◽  
Vol 31 (12) ◽  
pp. 3949-3957 ◽  
Author(s):  
S. Zouhair ◽  
M. Monkade ◽  
M. Bourass ◽  
A. El Antari ◽  
M. El Bouziani ◽  
...  
Keyword(s):  
Renormalization Group ◽  
Group Theory ◽  
Ising Model ◽  
Crystal Field ◽  
Renormalization Group Theory ◽  
Mixed Spin

Triple mixed-spin Ising model

2020 ◽  
Vol 34 (13) ◽  
pp. 2050129
Author(s):  
Erhan Albayrak
Keyword(s):  
Phase Transitions ◽  
Ising Model ◽  
Magnetic Fields ◽  
Exchange Interaction ◽  
Spin System ◽  
Bethe Lattice ◽  
Nearest Neighbors ◽  
Recursion Relations ◽  
Mixed Spin ◽  
Exchange Interaction Parameter

The A, B and C atoms with spin-1/2, spin-3/2 and spin-5/2 are joined together sequentially on the Bethe lattice in the form of ABCABC[Formula: see text] to simulate a molecule as a triple mixed-spin system. The spins are assumed to be interacting with only their nearest-neighbors via bilinear exchange interaction parameter in addition to crystal and external magnetic fields. The order-parameters are obtained in terms of exact recursion relations, then from the study of their thermal variations, the phase diagrams are calculated on the possible planes of our system. It is found that the model gives only second-order phase transitions in addition to the compensation temperatures.

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