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Signature of room temperature ferromagnetism in Mn doped CeO2 nanoparticles
Authors:Shalendra Kumar  Faheem Ahmed  MS Anwar  HK Choi  Hanshik Chung  BH Koo
Affiliation:1. School of Nano and Advanced Materials Engineering, Changwon National University, 9 Sarim dong, Changwon 641-773, Republic of Korea;2. Department of Mechanical and Precision Engineering and The Institute of Marine Industry, Gyeongsang National University, Tongyeong 650-160, Republic of Korea;1. School of Physics, Reva University, Yelahanka, Bangalore 560064, India;2. Prof. C.N.R. Rao Centre for Advanced Materials Research, Tumkur University, Tumkur 572103, India;3. Department of Physics, Savitribai Phule Pune University, Pune 411007, India;1. M.N. Miheev Institute of Metal Physics Ural Branch of RAS, 18 S. Kovalevskaya St, Ekaterinburg 620990, Russia;2. Central Research Technological Institute “TEKHNOMASH”, 4 I. Franko St, Moscow 121108, Russia;1. RASOM, Chungnam National University, Yuseong, Daejeon 305-764, South Korea;2. School of Applied Chemical Engineering, Chonnam National University, Gwangju 500-757, South Korea;3. Photo and Environmental Technology Co., Ltd., Gwangju 500-460, South Korea;2. Department of Physics, Faculty of Science, Aligarh Muslim University, Aligarh, 202002, India
Abstract:We report structural and magnetic properties of Mn doped CeO2 nanoparticles using X-ray diffraction (XRD), field emission transmission electron microscopy (FE-TEM) and dc magnetization measurements. XRD results infer that all the samples have single phase nature and lattice parameters decrease with Mn doping. The particle size calculated using XRD and TEM analysis was found to decrease with Mn doping. Field cooled magnetization measurement shows that the transition temperature is above room temperature. Magnetic hysteresis loop studies indicate that undoped and Mn doped CeO2 nanoparticles show weak ferromagnetic behavior at room temperature.
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