First direct observation of Dirac fermions in graphite
نویسندگان
چکیده
منابع مشابه
Observation of Landau levels of Dirac fermions in graphite
The unique electronic behaviour of monolayer and bilayer graphene is a result of the unusual quantum-relativistic characteristics of the so-called ‘Dirac fermions’ (DFs) that carry charge in these materials. Although DFs in monolayer graphene move as if they were massless, and in bilayer graphene they do so with non-zero mass, all DFs show chirality, which gives rise to an unusual Landau level ...
متن کاملObservation of magnetophonon resonance of Dirac fermions in graphite.
Coherent coupling of Dirac fermion magnetoexcitons with an optical phonon is observed in graphite as marked magnetic-field dependent splittings and anticrossing behavior of the two coupled modes. The sharp magnetophonon resonance occurs in regions of the graphite sample with properties of superior single-layer graphene having enhanced lifetimes of Dirac fermions. The greatly reduced carrier bro...
متن کاملDirac Fermions in Graphite: the State of Art
Macroscopic concentration of massless charge carriers with linear conic spectrum Dirac Fermions (DF) was shown in 2004 to exist in Highly Oriented Pyrolytic Graphite (HOPG) and governs its electronic properties. These carriers can have the same nature as DF observed in graphite monolayer (Graphene) and let to view HOPG as superposition of 2D carbon layers, almost independent electronically. We ...
متن کاملTriplet Fermions and Dirac Fermions in Borophene
Borophene is a monolayer materials made of boron. A perfect planar boropehene called β12 borophene has Dirac cones and they are well reproduced by a tight-binding model according to recent experimental and first-principles calculation results. We explicitly derive a Dirac theory for them. Dirac cones are gapless when the inversion symmetry exists, while they are gapped when it is broken. In add...
متن کاملWeak localization of Dirac fermions in graphene.
In the presence of the charged impurities, we study the weak localization effect by evaluating the quantum interference correction to the conductivity of Dirac fermions in graphene. With the inelastic scattering rate due to electron-electron interactions obtained from our previous work, we investigate the dependence of the quantum interference correction on the carrier concentration, the temper...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Physics
سال: 2006
ISSN: 1745-2473,1745-2481
DOI: 10.1038/nphys393