陶瓷工艺制备的La-Cu取代Ba六角铁氧体的微波和磁性能
Excellent microwave and magnetic properties of La-Cu substituted Ba-hexaferrites prepared by ceramic process
摘要：
我们展示了由传统陶瓷方法制备的晶体织构钡六角铁氧体的优异微波磁性能。振动样品磁强计（VSM）和矩形腔微扰法测量表明，Ba_（0.8）La_（0.2）Fe_（11.2）Cu_（0.2）O_（19）样品在Q波段零偏磁场下具有14.6kOe的强磁各向异性场，最高剩磁为3.96kGs，最低铁磁共振线宽为401 Oe。宽带毫米波透射率测量确定的复磁导率和介电常数。根据Schlomann的复磁导率理论，估算了样品的剩余磁化强度、各向异性场和有效线宽。这些计算值与VSM和FMR测量值符合得很好。
英文摘要：
We demonstrate exceptional microwave magnetic performance of crystallographycally textured barium hexaferrites prepared by conventional ceramic method. Vibrating sample magnetometer (VSM) and rectangular cavity perturbation measurements indicate that bulk Ba0.8La0.2Fe11.2Cu0.2O19 samples exhibit a strong magnetic anisotropy field Ha of 14.6kOe, the highest remanent magnetization of 3.96kGs, and the lowest ferromagnetic resonance (FMR) linewidth of 401Oe with zero applied bias field at Q-band. Broadband millimeter-wave transmittance measurements determined the complex permeability and permittivity. The remanent magnetization, anisotropy field Ha, and effective linewidth were also estimated based on Schlomann's theory of the complex permeability. These calculated values are in good agreement with the VSM and FMR measurements.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
