Influences of divalent ion substitution on the magnetic and dielectric properties of W-type barium ferrite  

作　　者：何诗悦 刘若水 刘煦婕 叶先平 王利晨 沈保根 Shiyue He;Ruoshui Liu;Xujie Liu;Xianping Ye;Lichen Wang;Baogen Shen(School of Rare Earths,University of Science and Technology of China,Hefei 230026,China;Ganjiang Innovation Academy,Chinese Academy of Sciences,Ganzhou 341119,China;Ningbo Institute of Materials Technology&Engineering,Chinese Academy of Sciences,Ningbo 315201,China;Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]School of Rare Earths,University of Science and Technology of China,Hefei 230026,China [2]Ganjiang Innovation Academy,Chinese Academy of Sciences,Ganzhou 341119,China [3]Ningbo Institute of Materials Technology&Engineering,Chinese Academy of Sciences,Ningbo 315201,China [4]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China

出　　处：《Chinese Physics B》2024年第6期480-486,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No. 52088101);the Kunpeng Plan of Zhejiang Province;Ningbo Top Talent Program。

摘　　要：Saturation magnetization,magneto-crystalline anisotropy field,and dielectric properties are closely related to microwave devices applied at different frequencies.For regulating the magnetic and dielectric properties of W-type barium ferrites,single-phase BaMe_(2)Fe_(16)O_(27)(Me=Fe,Mn,Zn,Ni,Co) with different Me ions were synthesized by the high-temperature solid-state method.The saturation magnetization(Ms) range from 47.77 emu/g to 95.34 emu/g and the magnetic anisotropy field(H_a) range from 10700.60 Oe(1 Oe=79.5775 A·m^(-1)) to 13739.57 Oe,depending on the type of cation substitution in the hexagonal lattice.The dielectric permittivity and dielectric loss decrease with increasing frequency of the AC electric field in the low-frequency region,while they almost remain constant in the high-frequency region.The charac teristics of easy regulation and preparation make it a potential candidate for use in microwave device applications.

关 键 词：W-type hexaferrite Raman spectra magnetic properties dielectric properties 

分 类 号：O469[理学—凝聚态物理]