activity
19942016
most cited1/S-expansion study of spin waves in a two-dimensional Heisenberg antiferromagnet

69 citations · 840 across the 52 of their papers we have counts for

collaborators

52 papers

cond-mat.str-el2016★ 1 cited

Resonant inelastic scattering spectra at the Ir -edge in NaIrO

Jun-ichi Igarashi, Tatsuya Nagao

We analyze resonant x-ray scattering (RIXS) spectra in NaIrO on the basis of the itinerant electron picture. Employing a multi-orbital tight-binding model on a honeycomb la…

cond-mat.str-el2015★ 4 cited

Collective excitations in NaIrO

Jun-ichi Igarashi, Tatsuya Nagao

We study the collective excitations of NaIrO in an itinerant electron approach. We consider a multi-orbital tight-binding model with the electron transfer between the Ir $5…

cond-mat.str-el2015★ 3 cited

Effect of broken symmetry on resonant inelastic x-ray scattering from undoped cuprates

Jun-ichi Igarashi, Tatsuya Nagao

We study the magnetic excitation spectra of resonant inelastic x-ray scattering (RIXS) at the -edge from undoped cuprates beyond the fast collision approximation. We analyse the…

cond-mat.str-el2014★ 12 cited

Analysis of resonant inelastic x-ray scattering from SrIrO in an itinerant-electron approach

Jun-ichi Igarashi, Tatsuya Nagao

We analyze the resonant x-ray scattering (RIXS) spectra from SrIrO in an itinerant electron approach. Employing a multi-orbital tight-binding model on the square lattice, w…

cond-mat.str-el2013★ 10 cited

Interplay between Hund's coupling and spin-orbit interaction on elementary excitations in Sr2IrO4

Jun-ichi Igarashi, Tatsuya Nagao

We study the elementary excitations in 5d transition metal oxideSrIrO by calculating the particle-hole Green's function within the random phase approximation on an antiferr…

cond-mat.str-el2013★ 10 cited

Magnetic excitation in resonant inelastic x-ray scattering of SrIrO: A localized spin picture

Jun-ichi Igarashi, Tatsuya Nagao

We study the magnetic excitations in 5d transition-metal oxide SrIrO on the basis of the Heisenberg model with small anisotropic terms on a square lattice. We calculate the…