Pressure effects on Dirac fermions in α-(BEDT-TTF)2I3

Details Pressure effects on Dirac fermions in α-(BEDT-TTF)2I3 Pressure effects on Dirac fermions in α-(BEDT-TTF)2I3

2011-08-03

arxiv.org/abs/1108.0791v1

J. Phys.: Condens. Matter 23 464202 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

18 pages, 7 figures, Proceedings of the International Conference on Conducting Materials (ICoCoM2010) in Sousse, Tunisia, Nov

Scientific paper

10.1088/0953-8984/23/46/464202

We investigate the pressure effect on the layered Dirac fermion system, which is realized in quasi-two-dimensional organic compound {\alpha}-(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 inter-layer magnetoresistance are discussed.

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