H
Hiroshi Ishida
Researcher at Nihon University
Publications - 74
Citations - 1493
Hiroshi Ishida is an academic researcher from Nihon University. The author has contributed to research in topics: Jellium & Strongly correlated material. The author has an hindex of 22, co-authored 72 publications receiving 1375 citations. Previous affiliations of Hiroshi Ishida include University of Tokyo & Forschungszentrum Jülich.
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Coulomb correlations and orbital polarization in the metal-insulator transition of V O 2
TL;DR: In this paper, the quasiparticle spectra in the metallic rutile and insulating monoclinic phases of Ω(n) are shown to be dominated by local Coulomb interactions.
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Fermi-liquid, non-Fermi-liquid, and Mott phases in iron pnictides and cuprates
Hiroshi Ishida,Ansgar Liebsch +1 more
TL;DR: The role of Coulomb correlations in the iron pnictide LaFeAsO was studied in this paper by generalizing exact diagonalization dynamical mean field theory to five orbitals, and the correlation-induced scattering rate as a function of doping relative to half-filling was qualitatively similar to the one in the two-dimensional singleband Hubbard model.
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Coulomb Correlations and Orbital Polarization in the Metal Insulator Transition of VO_2
TL;DR: The quasi-particle spectra in the metallic rutile and insulating monoclinic phases of VO$_2$ are shown to be dominated by local Coulomb interactions as mentioned in this paper.
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Theory of the alkali-metal chemisorption on metal surfaces. II.
TL;DR: La covalence dans la liaison Na-jellium and le terme de polarisation interatomique dans le moment dipolaire augmentent avec la diminution de θ.
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Temperature and bath size in exact diagonalization dynamical mean field theory
Ansgar Liebsch,Hiroshi Ishida +1 more
TL;DR: The main conclusion from these examples is that a larger number of correlated orbitals or sites requires a smaller number of bath levels, and down to temperatures of 5-10 meV two bath levels per correlated impurity orbital or site are usually adequate.