Abstract

Temperature dependences of the effective magnetic anisotropy field and ferromagnetic resonance linewidth in samples of isotropic and anisotropic hexaferrite SrFe_11.2Al_0.1Si_0.15Ca_0.15O₁₉ and anisotropic hexaferrite BaFe_10.4Al_1.4Si_0.15Mn_0.1O₁₉, obtained by ceramic technology with wet blanks pressed in the magnetic field of 10 kOe, were studied in the frequency range from 25 to 67 GHz. The studies were carried out at temperatures from 25 to 85°C. The change in the magnetic anisotropy in this temperature range was found to be 9.8 Oe/°C for barium hexaferrite and 4.2 Oe/°C for strontium hexaferrite; the change in the ferromagnetic resonance linewidth was 12.2 Oe/°C for barium hexaferrite and 10–12.3 Oe/°C for strontium hexaferrite.

中文翻译：

---

在25–67 GHz频率范围内，多晶复合物取代了磁性单轴六边形铁氧体的有效磁各向异性场和铁磁共振线宽的温度依赖性

摘要

各向同性和各向异性六方铁氧体SrFe _11.2 Al _0.1 Si _0.15 Ca _0.15 O ₁₉和各向异性六方铁氧体BaFe _10.4 Al _1.4 Si _0.15 Mn _0.1 O _19的样品中有效磁各向异性和铁磁共振线宽的温度依赖性在25至67 GHz的频率范围内，研究了通过陶瓷技术在10 kOe的磁场中压制湿毛坯获得的。研究是在25至85°C的温度下进行的。六方铁酸钡在该温度范围内的磁各向异性变化为9.8 Oe /°C，六方铁酸锶为4.2 Oe /°C。六铁酸钡的铁磁共振线宽变化为12.2 Oe /°C，六铁酸锶的变化为10-12.3 Oe /°C。