Switching phenomenon in a Se70Te30–xCdx films M. A. Afifi, A. E. Bekheet, N. A. Hegab, L. A. Wahab and H. A. Shehata Eur. Phys. J. Appl. Phys., 40 2 (2007) 133-140 Published online: 31 October 2007 DOI: 10.1051/epjap:2007143