Tang, H. X. and Monzon, F. G. and Lifshitz, Ron and Cross, M. C. and Roukes, M. L. (2000) Ballistic spin transport in a two-dimensional electron gas. Physical Review B, 61 (7). pp. 4437-4440. ISSN 0163-1829. doi:10.1103/PhysRevB.61.4437. https://resolver.caltech.edu/CaltechAUTHORS:TANprb00
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Abstract
We explore electrically injected, spin-polarized transport in a ballistic two-dimensional electron gas. We augment the Büttiker-Landauer picture with a simple, but realistic model for spin-selective contacts to describe multimode reservoir-to-reservoir transport of ballistic spin-1/2 particles. Clear and unambiguous signatures of spin transport are established in this regime, for the simplest measurement configuration that demonstrates them directly. These effects originate from spin precession of ballistic carriers; they exhibit a strong dependence upon device geometry, and vanish in the diffusive limit. Our results have important implications for prospective “spin transistor” devices.
Item Type: | Article | ||||||
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Additional Information: | © 2000 The American Physical Society Received 28 July 1999 We gratefully acknowledge support from DARPA Spintronics, through ONR Grant No. N00014-96-1-0865. We also thank A. Polichtchouk and M. Hartl for contributions to this work. | ||||||
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Issue or Number: | 7 | ||||||
DOI: | 10.1103/PhysRevB.61.4437 | ||||||
Record Number: | CaltechAUTHORS:TANprb00 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:TANprb00 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 3307 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Archive Administrator | ||||||
Deposited On: | 26 May 2006 | ||||||
Last Modified: | 08 Nov 2021 19:55 |
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