Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-06-22
J.Phys.A42:035205,2009
Physics
High Energy Physics
High Energy Physics - Theory
24 pages, references added, misprints corrected. Version to appear in JPA
Scientific paper
10.1088/1751-8113/42/3/035205
We analyze the behaviour of a system of particles living on a periodic crystal in the presence of a magnetic field B. This can be done by involving a periodic potential U(x) and the Rashba interaction of coupling constant k_{so}. By resorting the corresponding spectrum, we explicitly determine the band structures and the Bloch spinors. These allow us to discuss the system symmetries in terms of the polarizations where they are shown to be broken. The dynamical spin will be studied by calculating different quantities. In the limits: k_{so} and U(x)=0, we analyze again the system by deriving different results. Considering the strong $B$ case, we obtain an interesting result that is the conservation of the polarizations. Analyzing the critical point \lambda_{k,\sigma}=\pm\sq{1\over 2}, we show that the Hilbert space associated to the spectrum in z-direction has a zero mode energy similar to that of massless Dirac fermions in graphene. Finally, we give the resulting energy spectrum when B=0 and U(x) is arbitrary.
Houca Rachi
Jellal Ahmed
No associations
LandOfFree
Periodic Structures with Rashba Interaction in Magnetic Field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Periodic Structures with Rashba Interaction in Magnetic Field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Periodic Structures with Rashba Interaction in Magnetic Field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-621229