Anomalous Cherenkov spin-orbit sound

Details Anomalous Cherenkov spin-orbit sound Anomalous Cherenkov spin-orbit sound

2010-10-19

arxiv.org/abs/1010.4002v2

Physical Review B, Rapid Communications, Volume. 83, Issue 8, Page 081308(R) (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

published version

Scientific paper

10.1103/PhysRevB.83.081308

The Cherenkov effect is a well known phenomenon in the electrodynamics of fast charged particles passing through transparent media. If the particle is faster than the light in a given medium, the medium emits a forward light cone. This beautiful phenomenon has an acoustic counterpart where the role of photons is played by phonons and the role of the speed of light is played by the sound velocity. In this case the medium emits a forward sound cone. Here, we show that in a system with spin-orbit interactions in addition to this {\it normal} Cherenkov sound there appears an {\it anomalous} Cherenkov sound with forward and {\it backward} sound propagation. Furthermore, we demonstrate that the transition from the normal to anomalous Cherenkov sound happens in a {\it singular} way at the Cherenkov cone angle. The detection of this acoustic singularities therefore represents an alternative experimental tool for the measurement of the spin-orbit coupling strength.

Affiliated with

Also associated with

No associations

Rating

Anomalous Cherenkov spin-orbit sound 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 Anomalous Cherenkov spin-orbit sound, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anomalous Cherenkov spin-orbit sound will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-269784