c----------------------GaAs----------------------------------
     go   data/gaas
c------------------------------------------------------------
c   brvtyp     a        c/a   b/a   alpha   beta   gamma
     fcc     10.684 ,      ,      ,      ,       ,      ,
c------------------------------------------------------------
c   edelt    ewidth    reltyp   sdftyp   magtyp   record
    0.001     1.5      sra      mjwasa    nmag      2nd
c------------------------------------------------------------
c   outtyp    bzqlty   maxitr   pmix
    update      4       200    0.035
c------------------------------------------------------------
c    ntyp
      4
c------------------------------------------------------------
c   type    ncmp    rmt    field   mxl  anclr   conc
     Ga      1       1      0.0     2    31    100
     As      1       1      0.0     2    33    100
     Vc1     1       1      0.0     0     0    100
     Vc2     1       1      0.0     0     0    100
c------------------------------------------------------------
c   natm
     4
c------------------------------------------------------------
c   atmicx                        atmtyp
     0          0          0        Ga
     0.25       0.25       0.25     As
     0.5        0.5        0.5      Vc1
     0.75       0.75       0.75     Vc2
c------------------------------------------------------------