Coupling effects of layers on spin transport in ZnSe/Zn1-xMnxSe heterostructures F. Zhai, Y. Guo and B.-L. Gu Eur. Phys. J. B, 23 3 (2001) 405-411 Published online: 15 October 2001 DOI: 10.1007/s100510170060