45 citations · 391 across the 32 of their papers we have counts for
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Magnetization plateaus in the spin-1/2 antiferromagnetic Heisenberg model on a kagome-strip chain
K. Morita, T. Sugimoto, S. Sota +1
Spin-1/2 Heisenberg model on kagome lattice is a typical frustrated quantum spin system. A basic structure of kagome lattice is also present in kagome-strip lattice in one dimensio…
Cluster-based Haldane state in edge-shared tetrahedral spin-cluster chain: Fedotovite KCuO(SO)
M. Fujihala, T. Sugimoto, T. Tohyama +13
Fedotovite KCuO(SO) is a candidate of new quantum spin systems, in which the edge-shared tetrahedral (EST) spin-clusters consisting of Cu are connected by we…
Reentrant Topological Phase Transition in a Bridging Model between Kitaev and Haldane Chains
Takanori Sugimoto, Mitsuyoshi Ohtsu, Takami Tohyama
We present a reentrant phase transition in a bridging model between two different topological models: Kitaev and Haldane chains. This model is activated by introducing a bond alter…
Magnetic Phase Diagram of Frustrated Spin Ladder
T. Sugimoto, M. Mori, T. Tohyama +1
Frustrated spin ladders show magnetization plateaux depending on the rung-exchange interaction and frustration defined by the ratio of first and second neighbor exchange interactio…
Majorana Zero-Energy Mode and Fractal Structure in Fibonacci-Kitaev Chain
Rasoul Ghadimi, Takanori Sugimoto, Takami Tohyama
We theoretically study a Kitaev chain with a quasiperiodic potential, where the quasiperiodicity is introduced by a Fibonacci sequence. Based on an analysis of the Majorana zero-en…
Static and Dynamic Magnetic Properties of Spin-1/2 Inequilateral Diamond-Chain Compounds CuAlO(SO) (=K, Rb, and Cs)
Katsuhiro Morita, Masayoshi Fujihala, Hiroko Koorikawa +4
Spin-1/2 compounds A3Cu3AlO2(SO4)4 (A=K, Rb, and Cs) have one-dimensional (1D) inequilateral diamond chains. We analyze the temperature dependence of the magnetic susceptibility an…