22 citations · 58 across the 4 of their papers we have counts for
4 papers
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…
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…
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…
Frustration effect on magnetic excitations in a two-leg spin-ladder system
Takanori Sugimoto, Michiyasu Mori, Takami Tohyama +1
We theoretically study the magnetic excitations in a frustrated two-leg spin-ladder system, in which antiferromagnetic exchange interactions act on the nearest-neighbor and next-ne…