420 citations · 1.6k across the 77 of their papers we have counts for
5 papers · 1 filter
Berry Curvature of the Dirac Particle in -(BEDT-TTF)I
Yoshikazu Suzumura, Akito Kobayashi
We examine several properties of the Berry curvature for the organic conductor -(BEDT-TTF)I consisting of four bands, which exhibits a zero-gap state with Dirac cones. B…
Emergence of Dirac Electron Pair in Charge Ordered State of Organic Conductor -(BEDT-TTF)I
A. Kobayashi, Y. Suzumura, F. Piéchon +1
We re-examine the band structure of the stripe charge ordered state of -(BEDT-TTF)I under pressure by using an extended Hubbard model within the Hartree mean-field theor…
Spectral functions of two-band spinless fermion and single-band spin-1/2 fermion models
Edmond Orignac, Masahisa Tsuchiizu, Yoshikazu Suzumura
We examine zero-temperature one-particle spectral functions for the one-dimensional two-band spinless fermions with different velocities and general forward-scattering interactions…
Dirac Electrons in Molecular Solids
Hidetoshi Fukuyama, Akito Kobayashi, Yoshikazu Suzumura
Electrons in solids are characterized by the energy bands, which indicate that electrons are considered to be "elementary particles" with specific effective masses and g-factors re…
Ab initio derivation of multi-orbital extended Hubbard model for molecular crystals
Masahisa Tsuchiizu, Yukiko Omori, Yoshikazu Suzumura +2
From configuration interaction (CI) ab initio calculations, we derive an effective two-orbital extended Hubbard model based on the gerade (g) and ungerade (u) molecular orbitals (M…