Precessionless spin transport wire confined in quasi-two-dimensional electron systems

Ming Hao Liu, Son Hsien Chen, Ching Ray Chang

Research output: Contribution to journalArticlepeer-review


We demonstrate that in an inversion-asymmetric two-dimensional electron system (2DES) with both Rashba and Dresselhaus spin-orbit couplings taken into account, certain transport directions on which no spin precession occurs can be found when the injected spin is properly polarized. By analyzing the expectation value of spin with respect to the injected electron state on each space point in the 2DES, we further show that the adjacent regions with technically reachable widths along these directions exhibit nearly conserved spin. Hence a possible application in semiconductor spintronics, namely, precessionless spin transport wire, is proposed.

Original languageEnglish
Article number08H707
JournalJournal of Applied Physics
Issue number8
Publication statusPublished - 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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