Beating of Friedel oscillations induced by spin-orbit interaction

Details Beating of Friedel oscillations induced by spin-orbit interaction Beating of Friedel oscillations induced by spin-orbit interaction

2009-11-30

arxiv.org/abs/0911.5632v1

Physical Review B 81, 205314 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 figures

Scientific paper

10.1103/PhysRevB.81.205314

By exploiting our recently derived exact formula for the Lindhard polarization function in the presence of Bychkov-Rashba (BR) and Dresselhaus (D) spin-orbit interaction (SOI), we show that the interplay of different SOI mechanisms induces highly anisotropic modifications of the static dielectric function. We find that under certain circumstances the polarization function exhibits doubly-singular behavior, which leads to an intriguing novel phenomenon, beating of Friedel oscillations. This effect is a general feature of systems with BR+D SOI and should be observed in structures with a sufficiently strong SOI.

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