Structural,electrical,dielectric and magnetic properties of Mn-Nd substituted CoFeO3 nano sized multiferroics

作     者：Abdul Aziz E.Ahmed Muhammad Naeem Ashiq Muhammad Azhar Khan Nazia Karamat Irshad Ali 

作者机构：Department of Physics Bahauddin Zakariya University Institute of Chemical SciencesBahauddin Zakariya University Department of PhysicsThe Islamia University of Bahawalpur Institute of Chemical Sciences Bahauddin Zakariya University 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2016年第26卷第4期

页      面：325-333页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 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）] 0702[理学-物理学] 

主　　题：Nanostructured materials XRD Dielectric properties Electrical properties Magnetic properties 

摘      要：A series of Mn x Co1-xFe1-yNdyO3(where x=0.0–1.0 & y=0.0–0.1) multiferroic nanocrystals was synthesized via sol-gel auto-combustion technique. The structure was confirmed by X-ray diffraction(XRD)while morphology was investigated by scanning electron microscopy(SEM). The electrical resistivity was observed to increase from 2.14 * 107to 8.77 * 109Ω-cm and activation energy was found to increase from 0.64 to 0.75 e V, while the drift mobility decreased from 4.75 * 10-13to 1.27 * 10-15cm2V-1S-1by the substitution of Mn and Nd contents. The dielectric constant, dielectric loss and dielectric loss factor decrease with frequency and Mn-Nd contents. The saturation magnetization was increased from 34 to 70 emu g-1while the coercivity decreased from 705 to 262 Oe with the increase of *** increase in electrical resistivity and saturation magnetization while decrease in dielectric parameters and coercivity make these nanomaterials suitable for applications in microwave devices and longitudinal magnetic recording media.