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Magnetic Properties of the Ising Ferromagnet of Large Spin with Biquadratic Exchange Interaction and Uniaxial Anisotropy
Author(s) -
Iwashita T.,
Uryǔ N.
Publication year - 1987
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221390225
Subject(s) - condensed matter physics , ising model , ferromagnetism , anisotropy , spins , magnetization , curie temperature , exchange interaction , spin (aerodynamics) , physics , magnetic anisotropy , quantum mechanics , magnetic field , thermodynamics
For an Ising ferromagnet with S = 5/2, the magnetization 〈 S z 〉 and the Curie temperature T C are calculated using the pair model approximation. Assuming bilinear and biquadratic exchange interactions ( J and J ′) between nearest‐neighboring pair of spins and uniaxial single‐ionic anisotropy D for each spin, the behaviors of 〈 S z 〉 and T C as functions of these exchange parameters and the uniaxial anisotropy parameter are investigated for an Ising ferromagnet on crystal lattices of various types.