期刊
PHYSICAL REVIEW B
卷 82, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.82.134111
关键词
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资金
- Defense Threat Reduction Agency
- U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
- Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
The effect of pressure on the crystal structure of white phosphorus has been studied up to 22.4 GPa. The alpha phase was found to transform into the alpha' phase at 0.87 perpendicular to 0.04 GPa with a volume change in 0.1 perpendicular to 0.3 cc/mol. A fit of a second-order Birch-Murnaghan equation to the data gave V(o) = 16.94 +/- 0.08 cc/mol and K(o) = 6.7 +/- 0.5 GPa for the alpha phase and V(o) = 16.4 +/- 0.1 cc/mol and K(o) = 9.1 +/- 0.3 GPa for the alpha' phase. The alpha' phase was found to transform to the A17 phase of black phosphorus at 2.68 +/- 0.34 GPa and then with increasing pressure to the A7 and then simple cubic phase of black phosphorus. A fit of a second-order Birch-Murnaghan equation to our data combined with previous measurements gave V(o) = 11.43 +/- 0.05 cc/mol and K(o) = 34.7 +/- 0.5 GPa for the A17 phase, V(o) = 9.62 +/- 0.01 cc/mol and K(o) = 65.0 +/- 0.6 GPa for the A7 phase and, V(o) = 9.23 +/- 0.01 cc/mol and K(o) = 72.5 +/- 0.3 GPa for the simple cubic phase.
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