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Magnetic Susceptibility of an Ising Ferromagnet with Biquadratic Exchange and Uniaxial Anisotropy
Author(s) -
Iwashita T.,
Uryǔ N.
Publication year - 1990
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.2221580135
Subject(s) - condensed matter physics , ising model , ferromagnetism , anisotropy , spins , spin (aerodynamics) , physics , magnetic anisotropy , exchange interaction , magnetic susceptibility , antiferromagnetism , magnetization , magnetic field , quantum mechanics , thermodynamics
For the Ising ferromagnets with S = 1, S = 3/2, S = 5/2, the magnetic susceptibility λ is calculated with the use of the pair model approximation. Assuming the bilinear and biquadratic exchange interactions ( J and J ′) between nearest‐neighbouring pair of spins and the uniaxial single‐ionic anisotropy D ‐term for each spin, the behaviours of χ as a function of these exchange parameters and the uniaxial anisotropy parameter are investigated for four cases of the Ising spin system with the above spin values.