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Showing 2004 · cond-mat.str-elShow all
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cond-mat.str-el2004★ 8 cited
Cumulant expansion for ferrimagnetic spin (S_1, s_2) systems
J. Abouie, A. Langari
We have generalized the application of cumulant expansion to ferrimagnetic systems of large spins. We have derived the effective Hamiltonian in terms of classical variables for a q…
cond-mat.str-el2004★ 83 cited
Quantum renormalization group of XYZ model in a transverse magnetic field
A. Langari
We have studied the zero temperature phase diagram of XYZ model in the presence of transverse magnetic field. We show that small anisotropy (0 =< Delta <1) is not relevant to chang…