Selenium
      Akahama Y, Kobayashi M, Kawamura H
      Japanese Journal of Applied Physics 31 (1992) 1621-1624
      Structural study on pressure-induced phase transition from beta-Po type to bcc in selenium at 140 GP
      Locality: synthetic
      Sample: at P = 130 GPa
      Note: structure known as beta-Po type, phase Se V
      _database_code_amcsd 0012747

      CELL PARAMETERS:    3.8380   3.8380   2.6950   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     34.379
      Density (g/cm3):     11.440
      MAX. ABS. INTENSITY / VOLUME**2:      334.5144062    
      RIR:      9.521
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                43.22        100.00        2.0933    1   0   1         6
                47.37         75.33        1.9190    1   1   0         6
                66.05         25.79        1.4146    0   2   1         6
                76.24         16.38        1.2488    0   1   2         6
                85.23         23.99        1.1386    2   1   1        12
                88.18         11.04        1.1079    3   0   0         6
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.