Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5447588 | Journal of Physics and Chemistry of Solids | 2017 | 6 Pages |
Abstract
In situ high pressure synchrotron X-ray diffraction measurements were performed on icosahedral boron phosphide (B12P2) to 43.2 GPa. No structural phase transition occurs over this pressure range. The bulk modulus of B12P2 is KOT=207±7GPa with pressure derivative of K'OT=6.6±0.8 . The structure is most compressible along the chain formed by phosphorus and boron atoms in the crystal structure. It is believed that the compressibility of boron-rich compounds at close to ambient pressure is determined by the boron icosahedral structure, while the inclusive atoms (both boron and non-boron) between the icosahedra determine the high-pressure compressibility and structure stability.
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Authors
Yang Gao, Mi Zhou, Haiyan Wang, Cheng Ji, C.E. Whiteley, J.H. Edgar, Haozhe Liu, Yanzhang Ma,