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Presence of neodymium and gadolinium in cobalt ferrite lattice:Structural,magnetic and microwave features for electromagnetic wave absorbing
Affiliation:1. Department of Physics, Career Point University, Hamirpur, India;2. CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, Pusa, New Delhi, India;3. Department of Physics, Himachal Pradesh University, Shimla, India;4. Department of Physics, IEC University, Baddi, India;5. Department of Physics, Shoolini University, Solan, India;6. Department of Applied Physics, Chandigarh University, Mohali, Punjab, India;1. Department of Physics, P.V.P. Arts, Commerce and Science College, Pravaranagar, MS, India;2. Materials Research Laboratory, Shrikrishna Mahavidyalaya, Gunjoti 413613, MS, India;3. Department of Physics, Dnyanopasak Shikshan Mandal''s Arts, Commerce and Science College, Jintur 431509, MS, India;4. Department of Physics, Dr Babasaheb Ambedkar Marathwada University, Aurangabad 431001, MS, India;1. Department of Physics, Goa University, Taleigao Plateau, Goa, 403206, India;2. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India;1. Institute of Nanomaterials and Nanotechnologies, MAScIR, Rabat, Morocco;2. Laboratory of Magnetism and the Physics of the High Energy, URAC 12, Department of Physics, Faculty of Science, Mohammed V, Agdal University, BP 1014, Rabat, Morocco;3. Laboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, Route Sidi Bouzid, BP 63 46000, Safi, Morocco;4. Hassan II Academy of Science and Technology, Rabat, Morocco;5. Institut Néel, CNRS-UJF, B.P. 166, 38042 Grenoble Cedex, France;1. Department of Physics, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;2. Department of Physics, Balochistan University of Information Technology, Engineering and Management Sciences, Quetta 87300, Pakistan;3. Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;4. College of Engineering, King Saud University, PO Box 800, Riyadh 11421, Saudi Arabia
Abstract:In this work,neodymium substituted gadolinium-cobalt ferrite nanoparticles were synthesized by hydrothermal method.The significant role of doping both the Nd~(3+)and Gd~(3+) ions to cobalt ferrite in manipulating the cation distribution and further in influencing structural and magnetic properties was experimentally studied and reported.The influence of Nd~(3+) substitution was investigated with step of 0.02-0.1 into the optimized Gd-Co compound.The crystal structure formation and crystallite size were explored by X-ray diffraction analysis in which the crystallite size and lattice constant decrease with increasing the Nd~(3+) substitution.The microstructural properties were studied by field emission scanning electron microscopy and atomic force microscopy studies.The obtained structural and morphological results reveal that the substitution of Nd~(3+) with more than 0.06 into the Gd-Co ferrites will change the material be havior and trends.The saturation magnetization and coercivity values were measured using a vibration sample magnetometer at room temperature.Comparative microwave absorption experiments demonstrate that the reflection loss properties enhance with increasing substitution of Nd~(3+) cations in Gd-Co ferrite spinel structure.This research reports that the as-prepared Nd~(3+) substituted Gd-Co ferrite compound stands as promising candidate for absorbing electromagnetic wave with a wider absorbing bandwidth of X-band.
Keywords:Gd-Co nanoferrite  Coercive field  Microwave absorption  Rare earths
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