Low thermal conductivity of amorphous Si/Si0.75Ge0.25 multilayer films with Au-interlayers C. Lin, Z. G. Zeng, F. J. Ye, X. Luo, B. J. Shen, X. P. Zhang, L. C. Dai and Z. Y. Hu EPL, 105 2 (2014) 27003 Published online: 07 February 2014 DOI: 10.1209/0295-5075/105/27003