4.6 Article

Spin-orbit-interaction induced singularity of the charge density relaxation propagator

Journal

PHYSICAL REVIEW B
Volume 88, Issue 19, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.88.195402

Keywords

-

Funding

  1. Methusalem program of the Flemish government
  2. Flemish Science Foundation (FWO-Vl)
  3. DFG SFB [689]
  4. NSF [DMR-1104788]
  5. Division Of Materials Research
  6. Direct For Mathematical & Physical Scien [1104788] Funding Source: National Science Foundation

Ask authors/readers for more resources

The charge density relaxation propagator of a two-dimensional electron system, which is the slope of the imaginary part of the polarization function, exhibits singularities for bosonic momenta having the order of the spin-orbit momentum and depending on the momentum orientation. We have provided an intuitive understanding for this nonanalytic behavior in terms of the interchirality subband electronic transitions, induced by the combined action of Bychkov-Rashba (BR) and Dresselhaus (D) spin-orbit coupling. It is shown that the regular behavior of the relaxation propagator is recovered in the presence of only one BR or D spin-orbit field or for spin-orbit interaction with equal BR and D coupling strengths. This creates a new possibility to influence carrier relaxation properties by means of an applied electric field.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available