Crystal Structures at High Pressures of Metallic Modifications of Silicon and Germanium

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Science  22 Feb 1963:
Vol. 139, Issue 3556, pp. 762-764
DOI: 10.1126/science.139.3556.762


Studies of germanium and silicon by x-ray diffraction reveal that their crystal structure changes at high pressures from the semiconducting diamond-type structure to the metallic white tin structure, in analogy to the known "gray" to "white" transition in tin itself.