2011/01/31 by V. A. Slipko, I. Savran, Ibrahim Savran +2
Chemistry · Physics and Astronomy · #Chemistry #Condensed matter physics #Electron #Ferromagnetism #Helix (gastropod) #Homogeneous #Magnetic properties of thin films #Physics #Polarization (electrochemistry) #Quantum and electron transport phenomena #Quantum many-body systems #Quantum mechanics #Spin (aerodynamics) #Spin diffusion #Spin polarization #Spin–orbit interaction #Statistical physics #Zero field splitting #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.83.193302
published as Phys. Rev. B 83, 193302 (2011)
arxiv created 2011/01/31 · openalex publication_date 2011/05/16 · arxiv updated 2011/06/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We demonstrate that a homogeneous spin polarization in one-dimensional structures of finite length in the presence of Bychkov-Rashba spin-orbit coupling decays spontaneously toward a persistent spin helix. Such a strikingly different and simple method enables us to generate robust spin structures whose properties can be tuned by the strength of the spin-orbit interaction and/or the structure's length. We generalize our results for the two-dimensional case predicting the formation of a persistent spin helix in two-dimensional channels from homogeneous spin polarization. An analysis of the formation of a spin helical state is presented within an approach based on a mapping of spin drift-diffusion equations into a heat equation for a complex field.