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Anisotropic Conductivity of Nodal Line Semimetal in Single-Component Molecular Conductor [Pd(dddt)]
Yoshikazu Suzumura
Using a tight-binding model, we theoretically examine the anisotropic conductivity of the nodal line semimetal of a three-dimensional Dirac electron in a single-component molecular…
Analysis of Dirac Point in the Organic Conductor -(BEDT-TTF)I
Yoshikazu Suzumura
The Dirac electron in the organic conductor -(BEDT-TTF)I under pressure is analyzed using a tight-binding model with nearest-neighbor transfer energies and four molecule…
Effective Hamiltonian of Topological Nodal Line Semimetal in Single-Component Molecular Conductor [Pd(dddt)] from First-Principles
Takao Tsumuraya, Reizo Kato, Yoshikazu Suzumura
Using first-principles density-functional theory calculations, we obtain the non-coplanar nodal loop for a single-component molecular conductor [Pd(dddt)] consisting of HOMO an…
Role of acoustic phonons in exotic conductivity of two-dimensional Dirac electrons
Yoshikazu Suzumura, Masao Ogata
We examine the effect of acoustic phonon scattering on the conductivity of two-dimensional Dirac electrons. The temperature () dependence of the conductivity () is calculated…
Berry Phase of Dirac Nodal Line Semimetal in Single-Component Molecular Conductor
Yoshikazu Suzumura, Ai Yamakage
The Berry phase and curvature are studied for the Dirac nodal line semimetal of single-component molecular conductor [Pd(dddt)]. Using two-band model on the basis of a tight-bi…
Conductivity and Resistivity of Dirac Electrons in Single-Component Molecular Conductor [Pd(dddt)_2]
Yoshikazu Suzumura, HenBo Cui, Reizo Kato
Dirac electrons, which have been found in the single-component molecular conductor [Pd(dddt)_2] under pressure, are examined by calculating the conductivity and resistivity in term…
Effect of Long-Range Coulomb Interaction on NMR Shift in Massless Dirac Electrons of Organic Conductor
Yoshikazu Suzumura
The nuclear magnetic resonance (NMR) with the site-dependent shift, at low temperatures is examined for a massless Dirac electrons in the organic conductor, alpha-(BEDT-TTF)_2I_3,…