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Dynamical response properties of a two-dimensional electron gas in a weak periodic magnetic modulation

Journal Article


Abstract


  • Calculating the dynamical dielectric response function for a two-dimensional electron gas (2D EG) under a perpendicular magnetic field and subjected to an additional weak unidirectional periodic magnetic field within the random-phase approximation (RPA), we find that not only is the response function broadened in the presence of the magnetic modulation, but it is also found to contain a series of subsingularities at the band edges which are attributed to the magnetic modulation induced broadening of the energy spectrum. © 1998 Academic Press.

Publication Date


  • 1998

Citation


  • Stewart, S. M., Xu, W., Fisher, D. J., & Zhang, C. (1998). Dynamical response properties of a two-dimensional electron gas in a weak periodic magnetic modulation. Superlattices and Microstructures, 24(4), 285-289. doi:10.1006/spmi.1996.0368

Scopus Eid


  • 2-s2.0-0032308425

Start Page


  • 285

End Page


  • 289

Volume


  • 24

Issue


  • 4

Abstract


  • Calculating the dynamical dielectric response function for a two-dimensional electron gas (2D EG) under a perpendicular magnetic field and subjected to an additional weak unidirectional periodic magnetic field within the random-phase approximation (RPA), we find that not only is the response function broadened in the presence of the magnetic modulation, but it is also found to contain a series of subsingularities at the band edges which are attributed to the magnetic modulation induced broadening of the energy spectrum. © 1998 Academic Press.

Publication Date


  • 1998

Citation


  • Stewart, S. M., Xu, W., Fisher, D. J., & Zhang, C. (1998). Dynamical response properties of a two-dimensional electron gas in a weak periodic magnetic modulation. Superlattices and Microstructures, 24(4), 285-289. doi:10.1006/spmi.1996.0368

Scopus Eid


  • 2-s2.0-0032308425

Start Page


  • 285

End Page


  • 289

Volume


  • 24

Issue


  • 4