110 citations · 859 across the 63 of their papers we have counts for
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Magnetization Plateau of the Distorted Diamond Spin Chain with Ferromagnetic Interaction
Masaru Hashimoto, Koki Doi, Tomoki Houda +4
The magnetization process of the distorted diamond spin chain with ferromagnetic interactions is investigated using the numerical diagonalization of finite-size clusters. T…
Translational Symmetry Broken Magnetization Plateau of the Anisotropic Spin Ladder with Ferromagnetic Rung Interaction
Tôru Sakai, Koki Doi, Kiyomi Okamoto +5
The magnetization process of the anisotropic spin ladder with the ferromagnetic rung interaction is investigated using the numerical diagonalization of finite-size clusters…
Translational-Symmetry-Broken Magnetization Plateaux of the Anisotropic Antiferromagnetic Chain
Tomohide Kawatsu, Haruto Suzuki, Masaru Hashimoto +6
The magnetization process of the quantum spin chain with the anisotropy and the single-ion anisotropy is investigated using the numerical diagonalization of finit…
Translational symmetry broken magnetization plateau of the S=1 antiferromagnetic Heisenberg chain with competing anisotropies
Tôru Sakai, Kiyomi Okamoto, Kouichi Okunishi +4
We investigate the S=1 antiferromagnetic quantum spin chain with the exchange and single-ion anisotropies in a magnetic field, using the numerical exact diagonalization of finite-s…
Spin-Peierls transition to a Haldane phase
Hironori Yamaguchi, Hiroki Takahashi, Takashi Kawakami +4
We present an organic compound exhibiting a spin-Peierls (SP) transition to an effective spin-1 antiferromagnetic uniform chain, that is, the Haldane chain. The clear disappearance…
Spin Nematic Liquid of the Distorted Diamond Spin Chain in Magnetic Field
Tôru Sakai, Hiroki Nakano, Rito Furuchi +1
The magnetization process of the distorted diamond spin chain with the anisotropic ferromagnetic interaction is investigated using the numerical diagonalization of finite-s…
Field-Induced Spin Nematic Liquid of the Bond-Alternating Chain with the Anisotropy
Ryosuke Nakanishi, Takaharu Yamada, Rito Furuchi +5
The ferromagnetic-antiferromagnetic bond-alternating spin chain with the anisotropy on the ferromagnetic exchange interaction in magnetic field is investigated using the nu…
Nematic Tomonaga-Luttinger Liquid Phase in an Ferromagnetic-Antiferromagnetic Bond-Alternating Chain
Takashi Tonegawa, Kiyomi Okamoto, Kiyohide Nomura +1
We numerically investigate the ground-state phase diagram of the ferromagnetic-antiferromagnetic bond-alternating chain, in which the ferromagnetic interactions are stronge…
Field-induced spin nematic Tomonaga-Luttinger liquid of the spin ladder system with the anisotropic ferromagnetic rung interaction
Tôru Sakai, Ryosuke Nakanishi, Takaharu Yamada +5
The quantum spin ladder system with the anisotropic ferromagnetic exchange interaction on the rung under magnetic field is investigated using the numerical diagonalization…
Translational Symmetry Broken Magnetization Plateau of the Antiferromagnetic Chain with Anisotropies
Takaharu Yamada, Ryosuke Nakanishi, Rito Furuchi +5
The magnetization plateau of the antiferromagnetic chain with interaction and single-ion anisotropies is investigated using the numerical diagonalization of finite-size clust…
Field-Induced Quantum Spin Nematic Liquid Phase in the S=1 Antiferromagnetic Heisenberg Chain with Additional Interactions
Tôru Sakai, Hiroki Nakano, Rito Furuchi +1
The magnetization process of the antiferromagnetic chain with the single-ion anisotropy and the biquadratic interaction is investigated using the numerical diagonalizatio…
Magnetization Plateau of the Distorted Diamond Spin Chain with Anisotropic Ferromagnetic Interaction
Tôru Sakai, Kiyomi Okamoto, Hiroki Nakano +1
The distorted diamond spin chain with the anisotropic ferromagnetic interaction is investigated using the numerical diagonalization and the level spectroscopy analysis. It…
S=2 Quantum Spin Chain with the Biquadratic Exchange Interaction
Tôru Sakai, Takaharu Yamada, Ryosuke Nakanishi +5
The quantum spin chain with the single-ion anisotropy and the biquadratic exchange interaction is investigated using the numerical diagonalization of finite-…
Quantum Phase Transitions of the Distorted Diamond Spin Chain
Tomosuke Zenda, Yuta Tachibana, Yuki Ueno +2
The frustrated quantum spin system on the distorted diamond chain lattice suitable for the alumoklyuchevskite is investigated using the numerical diagonalization of finite-size clu…
Quantum Phase Transition of the Twisted Spin Tube
Yuta Tachibana, Yuki Ueno, Tomosuke Zenda +2
The twisted three-leg spin tube with the lattice distortion from the regular triangle to the isosceles one is investigated using the numerical diagonalization of finite-siz…
Magnetization Plateau of the Distorted Diamond Spin Chain
Yuki Ueno, Tomosuke Zenda, Yuta Tachibana +2
The frustrated quantum spin system on the distorted diamond chain lattice is investigated using the numerical diagonalization of finite-size clusters and the level spectroscopy ana…
Spin Nematic Liquids of the Spin Ladder in Magnetic Field
Tôru Sakai, Kiyomi Okamoto
The magnetization process of the spin ladder system is investigated using the numerical exact diagonalization of finite-size clusters. The field-induced spin nematic liquid p…
Ground-State Phase Diagram of an Anisotropic S=1 Ferromagnetic-Antiferromagnetic Bond-Alternating Chain
Kiyomi Okamoto, Takashi Tonegawa, Makoto Kaburagi +1
By using mainly numerical methods, we investigate the ground-state phase diagram (GSPD) of an ferromagnetic-antiferromagnetic bond-alternating chain with the and the on…
Magnetization plateau of the antiferromagnetic Heisenberg chain with anisotropies
Tôru Sakai, Kiyomi Okamoto, Takashi Tonegawa
We investigate the antiferromagnetic quantum spin chain with the exchange and single-ion anisotropies in a magnetic field, using the numerical exact diagonalization of finite…
Ground-State Phase Diagram of an Anisotropic S=1/2 Ladder with Different Leg Interactions
Takashi Tonegawa, Toshiya Hikihara, Kiyomi Okamoto +2
We explore the ground-state phase diagram of the two-leg ladder with different leg interactions. The and components of the leg interactions between nearest-neighbo…
Quantum Phase Transition in the Twisted Three-Leg Spin Tube
Keisuke Ito, Shun Yokoo, Kiyomi Okamoto +1
We investigate the spin-1/2 twisted three-leg antiferromagnetic quantum spin tube in the presence of the easy-plane anisotropy, using the numerical diagonalization of finite-size c…
Frustrated S=1/2 Two-Leg Ladder with Different Leg Interactions
Takashi Tonegawa, Kiyomi Okamoto, Toshiya Hikihara +1
We explore the ground-state phase diagram of the two-leg ladder with different isotropic leg interactions and uniform anisotropic rung ones, which is described by the H…
Ground-State Phase Diagram of the Bond-Alternating Quantum Spin Chain with the and On-Site Anisotropies -- Symmetry Protected Topological Phase versus Trivial Phase
Kiyomi Okamoto, Takashi Tonegawa, Tôru Sakai
We investigate the ground-state phase diagram of the bond-alternating quantum spin chain with the and on-site anisotropies. For the on-site anisotropies, in addition to…
Ground-state phase diagram of an anisotropic S=1/2 ladder with alternating rung interactions
Takashi Tonegawa, Kiyomi Okamoto, Toshiya Hikihara +1
Employing mainly numerical methods, we explore the ground-state phase diagram of an anisotropic ladder, in which leg interactions are uniform and isotropic, while rung inte…