207 citations · 2.1k across the 81 of their papers we have counts for
81 papers
Numerical study of resonant inelastic X-ray scattering at the oxygen -edge in insulating cuprates
Yukihiro Matsubayashi, Sumio Ishihara
We investigate resonant inelastic X-ray scattering (RIXS) at the O -edge in insulating cuprates by means of three methods: cluster perturbation theory (CPT), Hartree--Fock appro…
Energy-band echoes: Time-reversed light emission from optically driven quasiparticle wavepackets
Shohei Imai, Atsushi Ono, Sumio Ishihara
The at-will control of quantum states is a primary goal of quantum science and technology. The celebrated Hahn echo exemplifies such quantum-state control based on a time-reversal…
Ultrafast reorientation of the Néel vector in antiferromagnetic Dirac semimetals
Atsushi Ono, Sumio Ishihara
Antiferromagnets exhibit distinctive characteristics such as ultrafast dynamics and robustness against perturbative fields, thereby attracting considerable interest in fundamental…
Electric-Field-Induced Antiferromagnetic Insulating State in a Metallic Ferromagnet
Atsushi Ono, Sumio Ishihara
We show that a static electric field induces the transition from a ferromagnetic metal to an antiferromagnetic insulator owing to the Bloch oscillation of conduction electrons. In…
Strong enhancement of magnetic susceptibility induced by spin-nematic fluctuations in an excitonic insulating system with spin-orbit coupling
Joji Nasu, Makoto Naka, Sumio Ishihara
Effects of the spin-orbit coupling (SOC) and magnetic field on excitonic insulating (EI) states are investigated. We introduce the two-orbital Hubbard model with the crystalline fi…
Optical Response in Excitonic Insulating State: Variational Cluster Approach
Hengyue Li, Junya Otsuki, Makoto Naka +1
Optical responses in an excitonic insulating (EI) system with strong electron correlation are studied. We adopt the two-orbital Hubbard model with a finite energy difference betwee…