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首页> 外文期刊>Physical review, B. Condensed matter and materials physics >Magneto-optics of quasirelativistic electrons in graphene with an inplane electric field and in tilted Dirac cones in alpha-(BEDT TTF)(2)I-3
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Magneto-optics of quasirelativistic electrons in graphene with an inplane electric field and in tilted Dirac cones in alpha-(BEDT TTF)(2)I-3

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Massless Dirac fermions occur as low-energy modes in several quasi-two-dimensional condensed matter systems such as graphene, the surface of bulk topological insulators, and in layered organic semiconductors. When the rotational symmetry in such systems is reduced either by an in-plane electric field or an intrinsic tilt of the Dirac cones, the allowed dipolar optical transitions evolve from a few selected transitions into a wide fan of interband transitions. We show that the Lorentz covariance of the low-energy carriers allows for a concise analysis of the emergingmagneto-optical properties. We predict that infrared absorption spectra yield quantitative information on the tilted Dirac cone structure in organic compounds such as alpha-(BEDT-TTF)(2)I-3.

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