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Low saturated magnetic field bismuth-substituted rare earth iron garnet single crystal and its use

机译:低饱和磁场铋取代稀土铁石榴石单晶及其应用

摘要

A bismuth-substituted rare iron garnet single crystal grown on a non-magnetic substrate having a lattice constant of 12.490 Å - 12.510 Å by the liquid phase epitaxial method, and represented by a general equation:        GdxRyBi3-x-yFe5-z-wGazAlwO₁₂where R denotes at least one element selected from the group consisting of yttrium (Y), ytterbium (Yb) and lutetium (Lu), and x, y, z and w are numerical values in the ranges 0. 50 ≦ y/x ≦ 1.35, 1.40 ≦ x + y ≦ 1.90, 0.0 ≦ w/z ≦ 0.3 and 0.7 ≦ z + w ≦ 1.25. The magneto-optic optical switch or Faraday rotator constituted by the bismuth-constituted rare iron garnet is stably operable in a temperature range of - 20 °C to 60 °C. Because of the saturated magnetic field is 160 (Oe) or less, a magnetic field application device necessary to invert the magnetic field can be miniaturized.
机译:通过液相外延法在晶格常数为12.490Å-12.510Å的非磁性衬底上生长的铋取代的稀土石榴石单晶,由以下通式表示:Gd x R y Bi 3-xy Fe 5-zw Ga z Al w O₁²其中R表示选自钇(Y),(Yb)和(Lu)中的至少一种元素,并且x,y,z和w是在0范围内的数值。50≤y/x≤ 1.35、1.40≤x + y≤1.90、0.0≤w /z≤0.3和0.7≤z+w≤1.25。由铋构成的稀土铁石榴石构成的磁光光学开关或法拉第转子可在-20°C至60°C的温度范围内稳定运行。由于饱和磁场为160(Oe)以下,因此能够使使磁场反转所需的磁场施加装置小型化。

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