23 citations · 55 across the 7 of their papers we have counts for
3 papers · 1 filter
Chiral Valence-Bond Solid and Chiral Triplons
Shinnosuke Koyama, Kazumasa Hattori
We propose a chiral valence-bond solid (VBS) in which spin-singlet bond order itself spontaneously acquires handedness without magnetic order. Using a spin-lattice model on the dia…
Halogen control of magnetic competition in Kitaev candidate Ru ( Cl, Br)
Ryuta Iwazaki, Shinnosuke Koyama, Takashi Koretsune +2
The spin-orbital Mott insulators Ru ( Cl, Br) have attracted considerable attention as promising candidate materials for realizing a Kitaev spin liquid. In this study, we…
Flexocurrent-induced magnetization: Strain gradient-induced magnetization in time-reversal symmetric systems
Shinnosuke Koyama, Takashi Koretsune, Kazumasa Hattori
Symmetry constraints determine which physical responses are allowed in a given system. Magnetization induced by strain fields, such as in piezomagnetic and flexomagnetic effects, h…