37 citations · 127 across the 12 of their papers we have counts for
12 papers
Theory of clusterization in orbitally degenerate transition-metal compounds driven by lattice instabilities
Soshun Ozaki, Kota Mitsumoto, Chisa Hotta
We derive an effective orbital-lattice model with quantum degrees of freedom for transition-metal compounds, providing a microscopic understanding of cluster formation driven…
Effects of the three-dimensional interplanar coupling on the centrosymmetric skyrmion crystal formation in the frustrated stacked-triangular Heisenberg model
R. Osamura, K. Aoyama, K. Mitsumoto +1
Effects of the three-dimensional (3D) interplanar coupling on centrosymmetric skyrmion crystal (SkX) formation is investigated via extensive Monte Carlo simulations on the frustrat…
Electronuclear Quantum Criticality
J. Banda, D. Hafner, J. F. Landaeta +6
We present here a rare example of electronuclear quantum criticality in a metal. The compound YbCu4.6Au0.4 is located at an unconventional quantum critical point (QCP). In this mat…
Adsorption superlattice stabilized by elastic interactions in a soft porous crystal
Kota Mitsumoto, Kyohei Takae
We numerically show that molecules adsorbed in a soft porous crystal form a superlattice (SL) stabilized by elastic interactions. In a mechanically flexible honeycomb lattice model…
Diffusionless relaxation of half-skyrmion liquid, hexatic, and crystalline states in a chiral molecular crystal
Kyohei Takae, Kota Mitsumoto
Particles in a crowded environment exhibit slow anomalous diffusion, and their efficient manipulation is important in controlling transport phenomena in complex materials. Skyrmion…
Replica theory for disorder-free spin-lattice glass transition on a tree-like simplex network
Kota Mitsumoto, Hajime Yoshino
A class of pyrochlore oxides, MoO ( Ho, Y, Dy, Tb) with magnetic ions on corner-sharing tetrahedra is known to exhibit spin-glass transitions without appreciable…
Elastic heterogeneity governs asymmetric adsorption-desorption in a soft porous crystal
Kota Mitsumoto, Kyohei Takae
Metal--organic frameworks (MOFs), which possess a high degree of crystallinity and a large surface area with tunable inorganic nodes and organic linkers, exhibit high stimuli-respo…
Supercooled Jahn-Teller Ice
Kota Mitsumoto, Chisa Hotta, Hajime Yoshino
When the spins on the frustrated pyrochlore lattice obey the celebrated 2--2- ice rule, they stay in a correlated disordered phase and break the third law of thermodynamic…
Skyrmion crystal in the RKKY system on the two-dimensional triangular lattice
Kota Mitsumoto, Hikaru Kawamura
We study the ordering properties of the isotropic RKKY Heisenberg model on the two-dimensional (2D) triangular lattice by extensive Monte Carlo simulations to get insights into the…
Replica symmetry breaking in the RKKY skyrmion crystal system
Kota Mitsumoto, Hikaru Kawamura
We study the RKKY Heisenberg model on a three-dimensional stacked-triangular lattice under magnetic fields by extensive Monte Carlo simulations to get insight into the chiral-degen…
Spin-orbital glass transition in a model of a frustrated pyrochlore magnet without quenched disorder
Kota Mitsumoto, Chisa Hotta, Hajime Yoshino
We show theoretically that spin and orbital degrees of freedom in the pyrochlore oxide Y2Mo2O7, which is free of quenched disorder, can exhibit a simultaneous glass transition, wor…
Orientational ordering of closely packed Janus particles
Kota Mitsumoto, Hajime Yoshino
We study orientational ordering of -dimensional closely packed Janus particles by extensive Monte Carlo simulations. For smaller patch sizes the system remains in the plastic cr…