Enhanced magneto-dielectric response in La-doped Co_(2)U hexaferrite  

作　　者：Parambir Singh Malhi Anupinder Singh Mandeep Singh Sachin Kumar Shubhpreet Kaur Mehak Arora Ashwani Kumar Sood 

机构地区：[1]Department of Chemistry,UGC Centre for Advanced Studies II,Faculty of Sciences Guru Nanak Dev University,Amritsar 143005,Punjab,India [2]Multifunctional Materials Laboratory,Department of Physics,Faculty of Sciences Guru Nanak Dev University,Amritsar 143005,Punjab,India

出　　处：《Journal of Advanced Dielectrics》2021年第6期38-51,共14页先进电介质学报（英文）

摘　　要：The U-type hexaferrites(Ba_(1−3x)La_(2x))4Co_(2)Fe_(36)O_(60)(x=0,0.05,0.10,0.15,0.20,0.25)have been synthesized by auto-combustion method.The work involves the study of structural,microstructural,dielectric,magnetic and magneto-dielectric properties of the prepared materials.The structural analysis has been done by X-ray diffraction technique along with Le Bail refinement which confirmed the pure hexagonal phase for all the samples.The microstructural analysis has been carried out by field-emission scanning electron microscopy.The vibrating sample magnetometer is used to measure the magnetic properties.The sample with a composition of x=0.15 has shown the maximum magnetization of approximately 73.31 emu/g with the remnant magnetization of 38.89 emu/g and coercive field of 1.77 kOe at room temperature.Moreover,the same sample has delivered the maximum mag-netodielectric response of about 54.18%at 1.5-T field.

关 键 词：U-type hexaferrites magneto-dielectric properties 

分 类 号：TM2[一般工业技术—材料科学与工程]