Fe2 O7 Sr Tb2
      Samaras D, Collomb A, Joubert J
      Journal of Solid State Chemistry 7 (1973) 337-348
      Determination des structures de deux ferrite mixtes nouveaux de formule
      Ba La2 Fe2 O7 et Sr Tb2 Fe2 O7
      _cod_database_code 1008832
      _database_code_amcsd 0016701

      CELL PARAMETERS:    5.5065   5.5065  19.6590   90.000   90.000   90.000
      SPACE GROUP: P4_2/mnm  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    596.091
      Density (g/cm3):      7.010
      MAX. ABS. INTENSITY / VOLUME**2:      166.0432416    
      RIR:      7.713
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 9.00         18.61        9.8295    0   0   2         2
                16.72          4.12        5.3024    1   0   1         8
                18.05          3.47        4.9148    0   0   4         2
                21.07          2.49        4.2157    1   0   3         8
                23.29         10.67        3.8195    1   1   1         8
                26.63         25.88        3.3474    1   1   3         8
                27.22         11.99        3.2765    0   0   6         2
                27.88          3.20        3.1998    1   0   5         8
                32.36        100.00        2.7666    1   1   5         8
                32.52         63.86        2.7532    2   0   0         4
                33.81          4.27        2.6512    2   0   2         8
                36.49          3.11        2.4626    2   1   0         8
                36.57          1.66        2.4574    0   0   8         2
                37.66          1.36        2.3888    2   1   2        16
                39.08          1.33        2.3052    2   1   3        16
                39.57          2.59        2.2778    1   1   7         8
                42.91         17.02        2.1079    2   0   6         8
                43.36          1.50        2.0870    2   1   5        16
                46.11          3.68        1.9686    2   1   6        16
                46.18          7.80        1.9659    0   0  10         2
                46.65         31.29        1.9468    2   2   0         4
                47.74         10.11        1.9050    1   1   9         8
                49.73          5.88        1.8333    2   0   8         8
                49.90          1.47        1.8276    3   0   1         8
                51.72          2.17        1.7675    3   0   3         8
                52.62          1.78        1.7395    2   1   8        16
                52.78          1.68        1.7345    3   1   1        16
                54.53          4.43        1.6829    3   1   3        16
                54.85          4.47        1.6737    2   2   6         8
                55.23          3.02        1.6632    3   0   5         8
                56.14          1.15        1.6382    0   0  12         2
                56.67          8.26        1.6243    1   1  11         8
                57.61         10.34        1.5999    2   0  10         8
                57.92         29.08        1.5922    3   1   5        16
                60.84          1.34        1.5226    3   2   1        16
                62.44          1.69        1.4874    3   2   3        16
                65.58          2.80        1.4236    3   2   5        16
                66.40          3.39        1.4079    2   0  12         8
                66.60          1.03        1.4042    0   0  14         2
                67.74          6.82        1.3833    2   2  10         8
                68.11          6.63        1.3766    4   0   0         4
                68.97          4.14        1.3616    3   1   9        16
                70.51          1.40        1.3355    4   1   0         8
                74.81          1.08        1.2692    4   0   6         8
                75.91          1.44        1.2535    2   2  12         8
                76.09          1.96        1.2509    2   0  14         8
                76.36          4.28        1.2472    3   1  11        16
                77.12          2.19        1.2367    4   1   6        16
                77.44          4.66        1.2325    3   3   5         8
                77.53          4.99        1.2313    4   2   0         8
                82.14          1.29        1.1734    4   1   8        16
                83.21          1.40        1.1610    3   2  11        16
                83.96          1.88        1.1526    4   2   6        16
                85.21          1.55        1.1389    2   2  14         8
                86.26          2.59        1.1276    4   0  10         8
                86.80          1.06        1.1220    2   0  16         8
                88.12          2.95        1.1086    1   1  17         8
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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.