Satoshi Nishimoto

activity

20242026

collaborators

4 papers

cond-mat.str-el2026

Robust Spin-1 Haldane Topology under Itinerant Doping

Satoshi Nishimoto

We study itinerant hole doping of the spin- $1$ Haldane symmetry-protected topological (SPT) phase in two $t$ -- $J$ chains coupled by ferromagnetic (FM) Hund exchange. Density-matrix…

cond-mat.str-el2026

Ground State Properties of the Doped Kitaev-Heisenberg Chain: Topological Superconducting and Mott Insulating Phases Driven by Magnetic Frustration

Cliò Efthimia Agrapidis, Satoshi Nishimoto

We study the hole-doped Kitaev-Heisenberg chain using the density-matrix renormalization group. In the Kitaev-only limit, the bond-directional exchange itself promotes pairing, fav…

cond-mat.str-el2025

Competing magnetic and topological orders in the spin-1 Kitaev-Heisenberg chain with single-ion anisotropy

Sahinur Reja, Satoshi Nishimoto

We investigate the ground-state phase diagram of the spin-1 Kitaev--Heisenberg chain in the presence of uniaxial single-ion anisotropy (SIA) $D_{z}$ by density-matrix renormalization…

cond-mat.str-el2024

Topological Phases in Half-Integer Higher Spin $J_{1}$ - $J_{2}$ Heisenberg Chains

Sahinur Reja, Satoshi Nishimoto

We study the ground state properties of antiferromagnetic $J_{1}$ - $J_{2}$ chains with half-integer spins ranging from $S = \frac{3}{2}$ to $S = \frac{11}{2}$ using the density-matrix renor…

Robust Spin-1 Haldane Topology under Itinerant Doping

Ground State Properties of the Doped Kitaev-Heisenberg Chain: Topological Superconducting and Mott Insulating Phases Driven by Magnetic Frustration

Competing magnetic and topological orders in the spin-1 Kitaev-Heisenberg chain with single-ion anisotropy

Topological Phases in Half-Integer Higher Spin J1​-J2​ Heisenberg Chains

Topological Phases in Half-Integer Higher Spin $J_{1}$ - $J_{2}$ Heisenberg Chains