Berry phase in graphene: Semiclassical perspective
نویسندگان
چکیده
منابع مشابه
Berry phase and pseudospin winding number in bilayer 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. Ever since the novel quantum Hall effect in bilayer graphene was discovered, and explained by a Berry phase of 2π [...
متن کاملBerry curvature and energy bands of graphene
In this paper energy bands and Berry curvature of graphene was studied. Desired Hamiltonian regarding the next-nearest neighbors obtained by tight binding model. By using the second quantization approach, the transformation matrix is calculated and the Hamiltonian of system is diagonalized. With this Hamiltonian, the band structure and wave function can be calculated. By using calculated wave f...
متن کاملBerry curvature and energy bands of graphene
In this paper energy bands and Berry curvature of graphene was studied. Desired Hamiltonian regarding the next-nearest neighbors obtained by tight binding model. By using the second quantization approach, the transformation matrix is calculated and the Hamiltonian of system is diagonalized. With this Hamiltonian, the band structure and wave function can be calculated. By using calculated wave f...
متن کاملBerry phase, hyperorbits, and the Hofstadter spectrum: Semiclassical dynamics in magnetic Bloch bands.
We have derived a new set of semiclassical equations for electrons in magnetic Bloch bands. The velocity and energy of magnetic Bloch electrons are found to be modified by the Berry phase and magnetization. This semiclassical approach is used to study general electron transport in a DC or AC electric field. We also find a close connection between the cyclotron orbits in magnetic Bloch bands and...
متن کاملSEMICLASSICAL ANYON DYNAMICS IN MATTER AND NONCOMMUTATIVE GEOMETRY: A BERRY PHASE CONNECTION S.Dhar
An explicit connection has been provided between the semi-classical dynamics of anyon excitations in Ga-As alloys and the motion of a 2 + 1-dimensional spinning particle (or anyon) in electromagnetic field in the Non-Commutative (NC) geometry framework. The Berry curvatures play a major role in the analysis. It is also established that the bulk parameters of the former can be mapped to the poin...
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 B
سال: 2008
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.77.245413