Ground-State Phase Diagram of a Mixed Spin-3/2 and Spin-7/2 Ising Model: A Study of Complex [Cr(CN)4(μ-CN)2Gd(H2O)4-(bpy)]n.4nH2O.1.5nbpy

2019 ◽  
Vol 33 (5) ◽  
pp. 1481-1487 ◽  
Author(s):  
Hadey K. Mohamad ◽  
Amenah Zuhair
2014 ◽  
Vol 126 (1) ◽  
pp. 46-47 ◽  
Author(s):  
H. Čenčariková ◽  
P. Farkašovský ◽  
P. Puchala

2009 ◽  
Vol 6 (4) ◽  
pp. 784-789
Author(s):  
Baghdad Science Journal

The mixed-spin ferrimagnetic Ising system consists of two-dimensional sublattices A and B with spin values and respectively .By used the mean-field approximation MFA of Ising model to find magnetism( ).In order to determined the best stabile magnetism , Gibbs free energy employ a variational method based on the Bogoliubov inequality .The ground-state (Phase diagram) structure of our system can easily be determined at , we find six phases with different spins values depend on the effect of a single-ion anisotropies .these lead to determined the second , first orders transition ,and the tricritical points as well as the compensation phenomenon .


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