165 citations · 1.9k across the 79 of their papers we have counts for
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cond-mat.str-el2004★ 2 cited
Formation of clusters in the ground state of the model on a two leg ladder
A. Fledderjohann, A. Langari, K. -H. Muetter
We investigate the ground state properties of the model on a two leg ladder with anisotropic couplings () along rungs and () along legs. We have impleme…
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…