Abstract

Using Mössbauer spectroscopy, magnetometry and X-ray diffraction, we have studied the BaY_xFe_12 – xO₁₉ hexaferrite (0.1 ≤ x ≤ 1.2). The low isomorphic capacitance of hexaferrite is shown, which leads to phase separation with the formation of ВаFe₂O₄ and Y₃Fe₅O₁₂ for x = 0.6. Mössbauer spectroscopy data have shown that, in the studied range of substitutions, Y³⁺ ions enter the 12k position with the formation of a nonequivalent 12k' position due to the breaking of two Fe(12k)–O–Fe(12k) magnetic bonds in the 12k octahedron triad with their replacement by Fe(12k)–O–Y (12k). The BaY_xFe_12 – xO₁₉ hexaferrite has been shown to be less magnetically hard than BaFe_12 – xAl_xO₁₉.

中文翻译：

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BaFe 12-x Y x O 19六方铁氧体的阳离子分布和磁性能

摘要

使用穆斯堡尔谱，磁力测定和X射线衍射，我们研究湾_X的Fe _{12 -  X} Ö ₁₉六方晶系铁氧体（0.1≤ X ≤1.2）。六方晶系铁氧体的低同构电容被示出，这导致与ВаFe的形成相分离₂ ö ₄和Y ₃的Fe ₅ ø ₁₂为X = 0.6。Mössbauer光谱数据表明，在研究的取代范围内，由于3个Fe（12 k）的断裂，Y ³⁺离子进入12 k位，形成不等价的12 k '位。）–O–Fe（12 k）磁性键在12 k八面体三元组中被Fe（12 k）–O–Y（12 k）取代。已证明BaY _x Fe _{12 –  x} O ₁₉六价铁氧体的磁性不如BaFe _{12 –  x} Al _x O ₁₉。