TY - RPRT TI - Density driven structural transformations in amorphous semiconductor clathrates AU - Tulk, C. A. AU - dos Santos, A. M. AU - Neuefeind, J. C. AU - Molaison, J. J. AU - Sales, B. C. AU - Honkimäki, V. PY - 2015 DO - 10.1063/1.4905224 UR - https://www.osti.gov/biblio/1221429 ID - 1221429 ER -