This paper investigates the structural, morphological, magnetic, and microwave absorption properties of screen-printed Ba_1−xLa_xFe₁₂O₁₉ (x = 0.0, 0.1, 0.15, 0.20) thick films. Single phase P63/mmc was confirmed by X-ray diffraction patterns in fabricated thick films. SEM revealed dense packed microstructure with an average grain size of 2–3 μm for all films. La-substituted films showed increase in magnetization, coercivity, magnetocrystalline anisotropy with enhancement in perpendicular anisotropy. Overall microwave absorbance was increased for La-substituted BaM in K_u-band.

中文翻译：

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镧取代钡铁氧体丝网印刷厚膜的改进的电磁性能

本文研究丝网印刷的Ba ₁ - _x La _x Fe ₁₂ O ₁₉（x  = 0.0、0.1、0.15、0.20）厚膜的结构，形态，磁和微波吸收特性。通过制造的厚膜的X射线衍射图确认了单相P63 / mmc。SEM显示所有薄膜的致密堆积微结构，平均晶粒尺寸为2-3μm。镧取代的薄膜显示出磁化强度，矫顽力，磁晶各向异性的增加以及垂直各向异性的增强。在K _u带中，La取代的BaM的总体微波吸收率增加。