Current-Controlled Spin Precession of Quasistationary Electrons in a Cubic Spin-Orbit Field

Autor(es)

Altmann, P. ^[1] ; Hernandez, F. G. G. ^[2] ; Ferreira, G. J. ^[3] ; Kohda, M. ^[4] ; Reichl, C. ^[5] ; Wegscheider, W. ^[5] ; Salis, G. ^[1]

Afiliação do(s) autor(es)

^[1] IBM Res Zurich, Saumerstr 4, CH-8803 Ruschlikon - Switzerland

^[2] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo - Brazil

^[3] Univ Fed Uberlandia, Inst Fis, BR-38400902 Uberlandia, MG - Brazil

^[4] Tohoku Univ, Dept Mat Sci, Aoba Ku, 6-6-02 Aramaki Aza Aoba, Sendai, Miyagi 9808579 - Japan

^[5] ETH, Solid State Phys Lab, CH-8093 Zurich - Switzerland

• Tipo de documento: Artigo Científico
• Fonte: Physical Review Letters; v. 116, n. 19 MAY 9 2016.
• Citações Web of Science: 12

Resumo

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. (AU)

• Processo FAPESP: 13/03450-7 - O efeito Hall de spin em semicondutores
• Beneficiário: Felix Guillermo Gonzalez Hernandez
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 14/25981-7 - Geração e mapeamento espacial e temporal de correntes de spin
• Beneficiário: Felix Guillermo Gonzalez Hernandez
• Modalidade de apoio: Auxílio à Pesquisa - Regular