期刊
PHYSICAL REVIEW LETTERS
卷 116, 期 19, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.196802
关键词
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资金
- NCCR QSIT of the Swiss National Science Foundation
- Sao Paulo Research Foundation (FAPESP) [2013/03450-7, 2014/25981-7]
- FAPEMIG
- CNPq
- Japanese Ministry of Education, Culture, Sports, Science, and Technology (MEXT) [15H02099, 25220604]
- Grants-in-Aid for Scientific Research [15H02099] Funding Source: KAKEN
Space- and time-resolved measurements of spin drift and diffusion are performed on a GaAs-hosted two-dimensional electron gas. For spins where forward drift is compensated by backward diffusion, we find a precession frequency in the absence of an external magnetic field. The frequency depends linearly on the drift velocity and is explained by the cubic Dresselhaus spin-orbit interaction, for which drift leads to a spin precession angle twice that of spins that diffuse the same distance.
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