title: Pressure effects on Dirac fermions in α-(BEDT-TTF)₂I₃.
abstract: We investigate the pressure effect on the layered Dirac fermion system, which is realized in quasi-two-dimensional organic compound α-(BEDT-TTF)₂I₃. The trajectory of the contact points is investigated using the tight-binding model with the transfer integrals determined by x-ray diffraction experiments. Vanishing of the Dirac fermion spectrum, opening of the gap, and pressure dependence of interlayer magnetoresistance are discussed.
authors: Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan. himura@yukawa.kyoto-u.ac.jp
authors: Takahiro
authors: T
authors: Himura
authors: Takao
authors: T
authors: Morinari
authors: Takami
authors: T
authors: Tohyama