139 citations · 1.8k across the 90 of their papers we have counts for
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Mechanisms for Non-Trivial Magnetization Plateaux of an S=1 Frustrated Spin Ladder
Kiyomi Okamoto, Nobuhisa Okazaki, Tôru Sakai
We investigate the non-trivial magnetization plateau at 1/4 of the saturation magnetization of S=1 spin ladder, especially with reference to recent experimental results on a new or…
Magnetization Plateau in the S=1 Spin Ladder with Competing Interactions
Nobuhisa Okazaki, Kiyomi Okamoto, Toru Sakai
Very recently a non-trivial magnetization plateau at 1/4 of the saturation magnetization was observed in the S=1 spin ladder BIP-TENO. In our previous work we proposed a possible m…
Field-Induced gap due to four-spin exchange in a spin ladder
Atsushi Nakasu, Keisuke Totsuka, Yasumasa Hasegawa +2
The effect of the four-spin cyclic exchange interaction at each plaquette in the two-leg spin ladder is investigated at T=0, especially focusing on the field-induced gap. T…
Low-Temperature Properties of Quasi-One-Dimensional Molecule-Based Ferromagnets
Takashi Nakanishi, Shoji Yamamoto, Toru Sakai
Quantum and thermal behaviors of low-dimensional mixed-spin systems are investigated with particular emphasis on the design of molecule-based ferromagnets. One can obtain a molecul…
Stripes due to the next-nearest neighbor exchange in high-Tc cuprates
Toru Sakai
We propose a possible mechanism of the charge stripe order due to the next-nearest neighbor exchange interaction J' in the two-dimensional t-J model, based on the concept of the ph…