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Dielectric properties Y3Fe5O12 garnet crystals in the IR range

机译:红外范围内的Y3Fe5O12石榴石晶体的介电​​性能

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摘要

The dielectric properties of a series of yttrium-iron garnet single crystals of different structural and optical quality are investigated in the IR range (400-1000 cm(-1)). Some regularities of the dependence of the permittivity epsilon(infinity) of the garnet samples on the charge-carrier fraction (the parameter kk) are revealed. The maximum values of epsilon(infinity) are found for the samples containing magnetoactive Sm and Mn ions as dominant impurities, which increase the concentration of conduction electrons and, therefore, provide large values of kk. A correlation between epsilon(infinity) of the Y3Fe5O12 samples and the concentration of oxygen ions is established. (C) 2005 Pleiades Publishing, Inc.
机译:在红外范围(400-1000 cm(-1))中研究了一系列结构和光学质量不同的钇铁石榴石单晶的介电性能。揭示了石榴石样品的介电常数ε(无穷大)与电荷载流子分数(参数k / nk)的相关性的一些规律性。对于包含磁活性Sm和Mn离子作为主要杂质的样品,发现ε(无穷大)的最大值,这会增加导电电子的浓度,因此提供较大的k / nk值。建立了Y3Fe5O12样品的ε(无穷大)与氧离子浓度之间的相关性。 (C)2005年Pleiades Publishing,Inc.

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