Photogalvanic current in artificial asymmetric nanostructures A. D. Chepelianskii, M. V. Entin, L. I. Magarill and D. L. Shepelyansky Eur. Phys. J. B, 56 4 (2007) 323-333 Published online: 11 May 2007 DOI: 10.1140/epjb/e2007-00127-2