A3B_tI16_139_cde_e & a,c/a,z3,z4 --params=3.9993,4.3215062636,0.37498,0.11886 & I4/mmm D_{4h}^{17} #139 (cde^2) & tI16 & D0_{23} & Al3Zr & & Y. Ma, C. R{\o}mming, B. Lebech, J. Gj{\o}nnes and J. Taft{\o}, Acta Cryst. B 48, 11-16 (1992) 1.0000000000000000 -1.99965000000000 1.99965000000000 8.64150000000000 1.99965000000000 -1.99965000000000 8.64150000000000 1.99965000000000 1.99965000000000 -8.64150000000000 Al Zr 6 2 Direct 0.00000000000000 0.50000000000000 0.50000000000000 Al (4c) 0.50000000000000 0.00000000000000 0.50000000000000 Al (4c) 0.25000000000000 0.75000000000000 0.50000000000000 Al (4d) 0.75000000000000 0.25000000000000 0.50000000000000 Al (4d) 0.37498000000000 0.37498000000000 0.00000000000000 Al (4e) 0.62502000000000 0.62502000000000 0.00000000000000 Al (4e) 0.11886000000000 0.11886000000000 0.00000000000000 Zr (4e) 0.88114000000000 0.88114000000000 0.00000000000000 Zr (4e)