25 citations · 141 across the 14 of their papers we have counts for
14 papers
Breakdown of the conventional spin-wave dynamics and its double-constraint modification in the spin- triangular-prism Heisenberg antiferromagnet
Shoji Yamamoto, Jun Ohara
Spontaneous magnon decays in an Heisenberg antiferromagnet on the equilateral triangular prism are investigated in terms of modified magnon Green's functions. In on…
Thermal features of Heisenberg antiferromagnets on edge- versus corner-sharing triangular-based lattices: A message from spin waves
Shoji Yamamoto, Jun Ohara
We construct modified spin-wave thermodynamics for frustrated noncollinear antiferromagnets for the first time. The well-known modified spin-wave theory for collinear antiferromagn…
Photoinduced Bidirectional Magnetism against Monodirectional Electronics in Square-Antiprismatic Octacyanometalates
Jun Ohara, Shoji Yamamoto
Irradiating with blue light induces a global magnetization, whereas succeeding irradiations with red or longer-wavelength li…
Photoinduced magnetic bound state in itinerant correlated electron system with spin-state degree of freedom
Yu Kanamori, Jun Ohara, Sumio Ishihara
Photo-excited state in correlated electron system with spin-state degree of freedom is studied. We start from the two-orbital extended Hubbard model where energy difference between…
Optical manipulation of magnetism in spin-charge coupled correlated electron system
Jun Ohara, Yu Kanamori, Sumio Ishihara
Photoirradiation effects in correlated electrons coupled with localized spins are studied based on the extended double-exchange model. In particular, we examine melting of an antif…
Ground-state properties of a Peierls-Hubbard triangular prism
Shoji Yamamoto, Jun Ohara, Masa-aki Ozaki
Motivated by recent chemical attempts at assembling halogen-bridged transition-metal complexes within a nanotube, we model and characterize a platinum-halide triangular prism in te…