86 citations · 215 across the 19 of their papers we have counts for
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Large Diamagnetism and Electromagnetic Duality in Two-dimensional Dirac Electron System
S. Fujiyama, H. Maebashi, N. Tajima +4
A Dirac electron system in solids mimics a relativistic quantum physics that is compatible with Maxwell's equations, by which we anticipate unified electromagnetic responses. We fi…
Nuclear spin relaxation rate near the disorder-driven quantum critical point in Weyl fermion systems
Tomoki Hirosawa, Hideaki Maebashi, Masao Ogata
Disorder such as impurities and dislocations in Weyl semimetals (SMs) drives a quantum critical point (QCP) where the density of states at the Weyl point gains a non-zero value. Ne…
Nuclear Magnetic Relaxation and Knight Shift Due to Orbital Interaction in Dirac Electron Systems
Hideaki Maebashi, Tomoki Hirosawa, Masao Ogata +1
We study the nuclear magnetic relaxation rate and Knight shift in the presence of the orbital and quadrupole interactions for three-dimensional Dirac electron systems (e.g., bismut…
Nuclear Spin Relaxation Time due to the Orbital Currents in Dirac Electron Systems
Tomoki Hirosawa, Hideaki Maebashi, Masao Ogata
The nuclear spin relaxation time is calculated taking account of the contributions from orbital currents of Dirac electrons. We consider a simple model of non-interacting Dir…
Lorentz Covariance of Dirac Electrons in Solids: Dielectric and Diamagnetic Properties
Hideaki Maebashi, Masao Ogata, Hidetoshi Fukuyama
We study the electrodynamics of Dirac electrons in solids (e.g., bismuth) by comparing it with quantum electrodynamics (QED). It is shown that Lorentz covariance associated with th…