Interface effect and stress effect on Ge2Sb2Te5/Sb superlattice-like thin films Long Zheng, Xiaoqin Zhu, Liangjun Zhai, Yifeng Hu, Hua Zou, Bo Liu, Mingxu Pei and Zhitang Song Eur. Phys. J. Appl. Phys., 77 3 (2017) 30102 Published online: 12 April 2017 DOI: 10.1051/epjap/2017160397