Bismuth Substitution in Yttrium Iron Aluminum Garnets

  • S. Geller
    Bell Telephone Laboratories, Incorporated, Murray Hill, New Jersey
  • H. J. Williams
    Bell Telephone Laboratories, Incorporated, Murray Hill, New Jersey
  • R. C. Sherwood
    Bell Telephone Laboratories, Incorporated, Murray Hill, New Jersey
  • G. P. Espinosa
    Bell Telephone Laboratories, Incorporated, Murray Hill, New Jersey

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<jats:p>Magnetic, crystallographic, and preparative data are reported on the system {Y2.75Bi0.25} Fe5−xAlxO12 for values of x to 1.50. For large x there appear to be differences in 0°K magnetic moment between this system and the straight yttrium analog, which imply that the replacement of Y3+ by the larger Bi3+ ions favors occupation of the tetrahedral sites by the smaller Al3+ ions. The replacement of Y3+ by Bi3+ ions leads to the reduction of the preparation temperature of aluminum substituted iron garnets by about 350°C.</jats:p>

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