229 citations · 1.1k across the 29 of their papers we have counts for
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Superconductivity of MI(MII0.5, Si0.5)2 (MI=Sr and Ba, MII=Al and Ga), ternary silicides with the AlB2-type structure
Motoharu Imai, Kenji Nishida, Takashi Kimura +4
Ternary silicides MI(MII0.5, Si0.5)2 (MI=Sr and Ba, MII=Al and Ga) were prepared by Ar arc melting. Powder X-ray diffraction indicates that they have the AlB2-type structure, in wh…
Superfluid-Mott Insulator Transition of Spin-1 Bosons in an Optical Lattice
Shunji Tsuchiya, Susumu Kurihara, Takashi Kimura
We have studied superfluid-Mott insulating transition of spin-1 bosons interacting antiferromagnetically in an optical lattice. We have obtained the zero-temperature phase diagram…
Hybridization-induced superconductivity from the electron repulsion on a tetramer lattice having a disconnected Fermi surface
Takashi Kimura, Yuji Zenitani, Kazuhiko Kuroki +2
Plaquette lattices with each unit cell containing multiple atoms are good candidates for disconnected Fermi surfaces, which are shown by Kuroki and Arita to be favorable for spin-f…
High temperature superconductivity in dimer array systems
Kazuhiko Kuroki, Takashi Kimura, Ryotaro Arita
Superconductivity in the Hubbard model is studied on a series of lattices in which dimers are coupled in various types of arrays. Using fluctuation exchange method and solving the…
Superconductivity in quantum-dot superlattices composed of quantum wire networks
Takashi Kimura, Hiroyuki Tamura, Kazuhiko Kuroki +3
Based on calculations using the local density approximation, we propose quantum wire networks with square and plaquette type lattice structures that form quantum dot superlattices.…