Spin precession and electron spin polarization wave in [001]-grown quantum wells G. H. Liu, Y. H. Chen, C. H. Jia and Z. G. Wang Eur. Phys. J. B, 70 3 (2009) 397-401 Published online: 15 July 2009 DOI: 10.1140/epjb/e2009-00237-9