Landau Level Splittings, Phase Transitions, and Nonuniform Charge Distribution in Trilayer Graphene
نویسندگان
چکیده
منابع مشابه
Landau level spectrum of ABA- and ABC-stacked trilayer graphene
We study the Landau level spectrum of ABAand ABC-stacked trilayer graphene. We derive analytic lowenergy expressions for the spectrum, the validity of which is confirmed by comparison to a π -band tight-binding calculation of the density of states on the honeycomb lattice. We further study the effect of a perpendicular electric field on the spectrum, where a zero-energy plateau appears for ABC ...
متن کاملNew Dirac points and multiple Landau level crossings in biased trilayer graphene
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Recently a new high-mobility Dirac material, trilayer graphene, was realized experimentally. The band structure of ...
متن کاملZero Landau level in folded graphene nanoribbons.
Graphene nanoribbons can be folded into a double layer system keeping the two layers decoupled. In the quantum Hall regime folds behave as a new type of Hall bar edge. We show that the symmetry properties of the zero Landau level in metallic nanoribbons dictate that the zero energy edge states traversing a fold are perfectly transmitted onto the opposite layer. This result is valid irrespective...
متن کاملLandau Theory and Martensitic Phase Transitions
Landau theory proved i t s e l f appropriate f o r descr ibing phase t r a n s i t i o n s i n systems such a s f e r r o e l e c t r i c s and ferromagnets. Primarily Landau establ ished the theory f o r second order phase t r a n s i t i o n s . Later on Devonshire generalized Landau's approach t o f i r s t order t r a n s i t i o n s . The essen t ia l point of Landau theory i s a power s e...
متن کاملSpectral features due to inter-Landau-level transitions in the Raman spectrum of bilayer graphene
We investigate the contribution of the low-energy electronic excitations toward the Raman spectrum of bilayer graphene for the incoming photon energy 1 eV. Starting with the four-band tight-binding model, we derive an effective scattering amplitude that can be incorporated into the commonly used two-band approximation. Due to the influence of the high-energy bands, this effective scattering amp...
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: Physical Review Letters
سال: 2016
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.117.066601