Gauge fields and interferometry in folded graphene
نویسندگان
چکیده
Diego Rainis,1,* Fabio Taddei,1 Marco Polini,1,2 Gladys León,1,2 Francisco Guinea,3,2 and Vladimir I. Fal’ko4,2 1NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, I-56126 Pisa, Italy 2Kavli Institute for Theoretical Physics China, CAS, Beijing 100190, China 3Instituto de Ciencia de Materiales de Madrid (CSIC), Sor Juana Inés de la Cruz 3, E-28049 Madrid, Spain 4Physics Department, Lancaster University, Lancaster LA1 4YB, United Kingdom (Received 27 January 2011; published 5 April 2011)
منابع مشابه
Embedding of a 2D Graphene System in Non-Commutative Space
The BFT approach is used to formulate the electronic states in graphene through a non-commutative space in the presence of a constant magnetic field B for the first time. In this regard, we introduce a second class of constrained system, which is not gauge symmetric but by applying BFT method and extending phase space, the second class constraints converts to the first class constraints so th...
متن کاملAttosecond strong-field interferometry in graphene: Chirality, singularity, and Berry phase
We propose an interferometry in graphene’s reciprocal space without a magnetic field, employing strong ultrafast circularly polarized optical pulses. The reciprocal space interferograms contain information on the electronic spectra and topological properties of graphene and on the waveform and circular polarization of the excitation optical pulses. These can be measured using angle-resolved pho...
متن کامل3 0 Ja n 20 07 Chiral Gauge Theory for Graphene
We construct a chiral gauge theory to describe fractionalization of fermions in graphene. Thereby we extend a recently proposed model, which relies on vortex formation. Our chiral gauge fields provide dynamics for the vortices and also couple to the fermions.
متن کاملFictitious gauge fields in bilayer graphene
We discuss the effect of elastic deformations on the electronic properties of bilayer graphene membranes. Distortions of the lattice translate into fictitious gauge fields in the electronic Dirac Hamiltonian that are explicitly derived here for arbitrary elastic deformations, including in-plane as well as flexural (out-of-plane) distortions. We include gauge fields associated to intraas well as...
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 کامل