123 citations · 553 across the 24 of their papers we have counts for
24 papers
Stability of the 1/3 magnetization plateau of the kagome Heisenberg model
Katsuhiro Morita
In this study, we investigate the finite-temperature properties of the spin-1/2 Heisenberg model on the kagome lattice using the orthogonalized finite-temperature Lanczos…
Gapless chirality liquid with symmetry-protected edge spins
Shunsuke C. Furuya, Katsuhiro Morita
We report that a spin-1/2 tetrahedral Heisenberg chain realizes a gapless symmetry-protected topological (gSPT) phase characterized by the coexistence of the Tomonaga-Luttinger-liq…
Effects of bond-randomness and Dzyaloshinskii-Moriya interactions on the specific heat at low temperatures of a spherical kagomé cluster in {WV}
Mikio Motohashi, Kouki Inoue, Katsuhiro Morita +2
For the spin-1/2 spherical kagomé cluster, as well as for the 2D kagomé lattice, many low-energy singlet excitations have been expected to exist in the energy region below the spin…
Isothermal and adiabatic magnetization processes of the spin- Heisenberg model on an anisotropic triangular lattice
Katsuhiro Morita
In this study, we investigate the magnetic susceptibility, entropy, and isothermal magnetization curve of the spin-1/2 Heisenberg model on an anisotropic triangular lattice using t…
Magnetic phase diagrams of the spin- Heisenberg model on a kagome-strip chain: Emergence of a Haldane phase
Katsuhiro Morita, Shigetoshi Sota, Takami Tohyama
Frustrated one-dimensional quantum spin systems are known to exhibit a variety of quantum ground states due to the effects of quantum fluctuations and frustrations. In a spin-1/2 k…
Resonating dimer-monomer liquid state in a magnetization plateau of a spin- kagome-strip Heisenberg chain
Katsuhiro Morita, Shigetoshi Sota, Takami Tohyama
Highly frustrated spin systems such as the kagome lattice (KL) are a treasure trove of new quantum states with large entanglements. We thus study the spin- Heisenberg…