High-pressure X-ray diffraction study of tungsten diselenide
作者： Emre Selvi , Yanzhang Ma , Resul Aksoy , Atila Ertas , Allen White
DOI: 10.1016/J.JPCS.2006.05.008
关键词: Crystallography 、 Tungsten diselenide 、 Tungsten 、 Diffraction 、 Diamond anvil cell 、 X-ray crystallography 、 Analytical chemistry 、 Phase (matter) 、 Bulk modulus 、 Synchrotron radiation 、 Chemistry
摘要: Abstract Synchrotron X-ray diffraction was used in conjunction with a diamond anvil cell to investigate the properties of tungsten diselenide (WSe2) sample 35.8 GPa at room temperature. By fitting pressure–volume data third-order Birch–Murnaghan equation state, bulk modulus, K0T, WSe2 determined be 72±1 GPa its pressure derivative, K 0 T ′ , being 4.1±0.1. It also found that c-direction hexagonal structure is significantly more compressible than a-direction. No phase transformation clearly observed range our measurements.
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