129 citations · 144 across the 4 of their papers we have counts for
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cond-mat.str-el2008★ 6 cited
Green's function theory for spin-1/2 ferromagnets with an easy-plane exchange anisotropy
Daisuke Yamamoto, Synge Todo, Susumu Kurihara
The many-body Green's function theory with the random-phase approximation is applied to the study of easy-plane spin-1/2 ferromagnets in an in-plane magnetic field. We demonstrate…
cond-mat.str-el2006★ 6 cited
Antiferromagnetism in two-dimensional t-J model: pseudospin representation
Daisuke Yamamoto, Susumu Kurihara
We discuss a pseudospin representation of the two-dimensional t-J model. We introduce pseudospins associated with empty sites, deriving a new representation of the t-J model that c…