Electronic, magnetic, and microwave properties of hard/soft nanocomposites based on hexaferrite SrNi0.02Zr0.02Fe11.96O19 with variable spinel phase MFe2O4 (M = Mn, Co, Cu, and Zn)
Almessiere M.A. Slimani Y. Algarou N.A. Gondal M.A. Wudil Y.S. Younas M. Auwal I.A. Baykal A. Manikandan A. Zubar T.I. Kostishin V.G. Trukhanov A.V. Ercan I.
15 December 2021Elsevier Ltd
Ceramics International
2021#47Issue 2435209 - 35223 pp.
Hard/soft nanocomposites (NCs) of SrNi0.02Zr0.02Fe11.96O19 (SrNiZr)/MFe2O4 (M = Mn, Co, Cu, and Zn) were prepared using a one-pot sol-gel auto-combustion technique. All produced samples showed smooth M − H curves and single peaks on the dM/dH against H curves. This indicates that complete exchange-coupled effects between phases were achieved. Furthermore, the squareness ratio SQR=(Mr/Ms) was obtained and found to be higher than 0.5 at 300 K. This refers to the occurrence of excellent exchange coupling behavior among the soft and hard ferrites, and their structures consist of a single magnetic domain. The electrodynamic parameters were investigated in the 2–18 GHz frequency band using a coaxial line. The dependences of the real and imaginary parts of μ and ε as a function of frequency were determined from the measured S-parameters. A strong correlation between the chemical composition of the soft magnetic phase and the electrodynamic parameters of the composite was observed. This was analyzed in terms of the atomic weight and configuration of the electronic shells of the A-cation in the soft phase. The electromagnetic absorption (EMA) of the investigated composites was estimated from the reflection losses calculated from μ and ε. The maximal EMA value was observed.
Hard/soft ferrite nanocomposite , Magnetic properties , Microwave absorption , XPS study
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Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia
Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia
Laser Research Group, Physics Department & IRC-Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
K.A.CARE Energy Research and Innovation Center, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
Chemistry Department, Faculty of Natural and Applied Sciences, Sule Lamido University, Kafin Hausa, PMB 048, Jigawa State, Nigeria
Department of Nanomedicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia
Department of Chemistry, Bharath Institute of Higher Education and Research (BIHER), Bharath University, Chennai, 600 073, Tamil Nadu, India
South Ural State University, 76, Lenin Prospekt, Chelyabinsk, 454080, Russian Federation
SSPA Scientific and Practical Materials Research Centre of the NAS of Belarus, 19 Brovki str., Minsk, 220072, Belarus
National University for Science and Technology MISiS, Leninsky av., 4, Moscow, 119049, Russian Federation
L.N. Gumilyov Eurasian National University, 2, Satpayev str., Nur-Sultan, 010000, Kazakhstan
Department of Physics
Department of Biophysics
Laser Research Group
K.A.CARE Energy Research and Innovation Center
Chemistry Department
Department of Nanomedicine Research
Department of Chemistry
South Ural State University
SSPA Scientific and Practical Materials Research Centre of the NAS of Belarus
National University for Science and Technology MISiS
L.N. Gumilyov Eurasian National University
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