Light scattering from a periodically modulated two dimensional electron gas with partially filled Landau levels
Arne Brataas, C. Zhang, K. A. Chao
Abstract
We study light scattering from a periodically modulated two dimensional electron gas in a perpendicular magnetic field. If a subband is partially filled, the imaginary part of the dielectric function as a function of frequency contains additional discontinuities to the case of completely filled subbands. The positions of the discontinuities may be determined from the partial filling factor and the height of the discontinuity can be directly related to the modulation potential. The light scattering cross section contains a new peak which is absent for integer filling.
Create a lesson
Related papers
Probing the wave-vector gap in nanoscale magnonics
Ondřej Wojewoda, Samer Kurdi, Toeno van der Sar et al.
Approaching Irrational Quantization
Zhihong Wu, Zhimou Chen, Siyuan Zhang et al.
A Solvable Model in the Half-filled Landau Level
Anders Karlhede
Microscopic foundation for orbitronics: orbital exchange interactions, orbital-dependent transport, and orbital switching
Hantao Zhang, Ran Cheng
Valley-resolved high harmonics probe symmetry breaking beyond the Dirac cone
Pablo Pais, Alfredo Iorio, Marcelo F. Ciappina
Magnon Klein paradox
D. Wang