139 citations · 1.8k across the 90 of their papers we have counts for
Showing 1998Show all
3 papers · 1 filter
cond-mat.str-el1998★ 25 cited
Magnetization plateau in the spin ladder with the four-spin exchange
Toru Sakai, Yasumasa Hasegawa
The magnetization process of the =1/2 antiferromagnetic spin ladder with the four-spin cyclic exchange interaction at T=0 is studied by the exact diagonalization of finite clust…
cond-mat.stat-mech1998★ 21 cited
Field induced transition of the S=1 antiferromagnetic chain with anisotropy
Toru Sakai
The ground state magnetization process of the S=1 antiferromagnetic chain with the easy-axis single-ion anisotropy described by negative is investigated. It is numerically foun…
cond-mat.stat-mech1998★ 37 cited
Critical exponent in the magnetization curve of quantum spin chains
Toru Sakai, Minoru Takahashi
The ground state magnetization curve around the critical magnetic field of quantum spin chains with the spin gap is investigated. We propose a size scaling method to estimate…