Structural transitions of solid germane under pressure Chao Zhang, Xiao-Jia Chen, Yan-Ling Li, Viktor V. Struzhkin, Ho-Kwang Mao, Rui-Qin Zhang and Hai-Qing Lin EPL, 90 6 (2010) 66006 Published online: 16 July 2010 DOI: 10.1209/0295-5075/90/66006