Structural and dielectric properties of doped ferrite nanomaterials suitable for microwave and biomedical applications
Structural and dielectric properties of doped ferrite nanomaterials suitable for microwave and biomedical applications作者机构：Centre of Excellence in Solid State Physics University of the Punjab Institute of Chemical Sciences Bahauddin Zakariya University Department of Physics BUITEMS 4. Department of Physics University of Sargodha
出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))
年 卷 期：2015年第25卷第3期
页 面：419-424页
核心收录：
学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 07[理学] 08[工学] 070205[理学-凝聚态物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学]
主 题：Sol–gel Nanocrystalline materials Thermal properties Electrical properties Dielectric properties
摘 要：The sol-gel auto-combustion method was adopted to synthesize nanomaterials of single-phase X-type hexagonal ferrites with the composition of Sr;Gd;Ni;Fe;Cd;O;（x=0.00,0.02,0.04,0.06,0.08,0.10 and y = 0,0.1,0.2,0.3,0.4,0.5）.The structural properties were carried out by XRD analysis and the lattice parameters show variation with the doping of *** average particle size measured by TEM was in the range of 8-10 nm which is beneficial in obtaining suitable signal-to-noise ratio in recording media and biomedical *** room temperature resistivity enhanced with the increase of the dopant *** increase in resistivity indicates that the synthesized materials can be considered good for the formation of the multilayer chip inductors（MLCIs） as well as for the reduction of eddy current *** dielectric constant decreased with the increase in the frequency which is the general reported trend of the hexagonal ferrites and can be explained on the basis of Koop’s theory and Maxwell-Wagner *** abnormal dielectric behavior indicates the formation of small polarons in the *** maximum value of tangent loss at low frequencies reflects the application of these materials in medium frequency devices（MF）.
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