We study the spin transport in a quasi-one-dimensional channel defined in a two-dimensional electron gas. The combined action of geometrical confinement and the spin precession is analyzed. We demonstrate that for certain orientations of the in-plane magnetic field and for specific range of its magnitude the spin polarization exhibits a strong decrease referred to as ballistic spin resonance (BSR). The phenomenon is due to the commensuration of the Zeeman and inter-subband energy splitting. We show that the BSR requires a finite spin-orbit (SO) interaction although the condition for the BSR onset is independent on SO coupling.
|Original language||American English|
|Title of host publication||4rth Conference on Nuclei and Mesoscopic Physics 2014|
|Editors||Vladimir Zelevinsky, Alex Levchenko, Pawel Danielewicz, Pawel Danielewicz|
|Publisher||American Institute of Physics Inc.|
|Number of pages||7|
|State||Published - 2014|
|Event||4th Conference on Nuclei and Mesoscopic Physic, NMP 2014 - East Lansing, United States|
Duration: 5 May 2014 → 9 May 2014
|Name||AIP Conference Proceedings|
|Conference||4th Conference on Nuclei and Mesoscopic Physic, NMP 2014|
|Period||5/05/14 → 9/05/14|
Bibliographical noteFunding Information:
We thank J.A. Folk and A.M. Finkel’stein for useful discussions. M.K. acknowledges the support of the University of Iowa. M.E.F. was supported in part by C-SPIN, one of six centers of STARnet, a Semiconductor Research Corporation program, sponsored by MARCO and DARPA.
© 2014 AIP Publishing LLC.
- quasi-one-dimensional transport