Hypersonic edge solitons in graphene under quantum Hall effect
Artikel i vetenskaplig tidskrift, 2015

We consider a graphene sheet with a zigzag edge subject to a perpendicular magnetic field and investigate the evolution of in-plane elastic edge deformation. In such a system, resonant electronic edge states generate a strong Landau damping of low-amplitude acoustic edge waves with specific wave vectors. We study the propagation of a short hypersonic edge pulse in the case of a strong interaction with resonant electronic edge states. Using the resonance approximation, we derive the system of equations describing the evolution of the pulse and show that self-induced transparency can appear under certain conditions. As a consequence, pulses with particular profiles can travel without attenuation at a velocity different from that of sound.

graphene

quantum Hall effect

SAW

soliton

surface waves

Författare

Anton Vikström

Chalmers, Teknisk fysik, Kondenserade materiens teori

Leonid Gorelik

Chalmers, Teknisk fysik, Kondenserade materiens teori

Europhysics Letters

0295-5075 (ISSN) 1286-4854 (eISSN)

Vol. 112 44004-

Styrkeområden

Nanovetenskap och nanoteknik

Ämneskategorier

Fysik

Den kondenserade materiens fysik

Fundament

Grundläggande vetenskaper

DOI

10.1209/0295-5075/112/44004