Chromium substituted copper ferrites via gluconate precursor route |
| |
| Affiliation: | 1. Ilie Murgulescu Institute of Physical Chemistry, Splaiul Independentei 202, Bucharest 060021, Romania;2. National Institute of Materials Physics, 105 bis Atomistilor Street, PO Box Mg-7, Bucharest-Magurele 077125, Romania;3. “Politehnica” University of Bucharest, Faculty of Chemistry, 1-7 Polizu Street, Bucharest, Romania;1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Xi׳an Jiaotong University, Xi׳an 710049, PR China;2. Multi-Disciplinary Materials Research Center, Frontier Institute of Science and Technology, Xi׳an Jiaotong University, Xi׳an, PR China;1. Department of Electronics and Communication Engg., Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India;2. UGC-DAE, Consortium for Scientific Research, Kolkata Centre, III/LB 8, Bidhannagar, Kolkata 700098, West Bengal, India;3. Department of Physics, National Institute of Technology, Patna 800005, Bihar, India;1. Nano Scale Physics Laboratory, Department of Physics, Air University, PAF Complex E-9, Islamabad, Pakistan;2. Applied Thermal Physics Laboratory, Department of Physics, COMSATS Institute of Information Technology, Islamabad 44000, Pakistan;1. Department of Applied Physics, Aligarh Muslim University, Aligarh 202 002, India;2. Spin Device Technology Centre, Faculty of Engineering, Shinshu University, Nagano 3808553, Japan;3. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India;4. National Physical Laboratory (CSIR), Dr. K.S. Krishnan Road, New Delhi 110 012, India;5. School of Materials Science and Engineering, Changwon National University, Changwon, Gyeongnam, 641-773, Republic of Korea;6. Centre for Material Science Engineering, National Institute of Technology, Hamirpur 177 005, Himachal Pradesh, India;7. Department of Physics, Nizam College, Osmania University, Basheerbagh, Hyderabad 500001 Andhra Pradesh, India |
| |
| Abstract: | CuFe2−xCrxO4 spinel (0≤x≤2) powders were synthesized by a soft chemistry method—the gluconate multimetallic complex precursor route. The complex precursors were characterized by elemental chemical analysis, infrared (IR) and ultraviolet–visible (UV–vis) spectroscopy, thermal analysis and Mössbauer spectroscopy. The oxide powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), IR, Raman and Mössbauer spectroscopy. It was shown that the structure, morphology and magnetic properties of the obtained spinel powders depend on the concentration of Cr3+ ion. The XRD of the chromium substituted copper ferrite powders calcined at 700 °C/1 h indicated the formation of a cubic spinel type structure for x=0.5, 1.0 and a tetragonal structure for x=0, 0.2, 2. The crystallite size ranged from 19 nm to 39 nm. The Mössbauer spectroscopy revealed the site occupancy of iron ions, relative abundance and internal hyperfine magnetic fields in both tetrahedral and cubic CuFe2−xCrxO4 spinels. |
| |
| Keywords: | A Powders chemical preparation B Spectroscopy D Ferrites D Spinels |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
