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R A ZAGHLOOL
Articles written in Bulletin of Materials Science
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Volume 45 All articles Published: 9 September 2022 Article ID 0179
R A ZAGHLOOL N MAKRAM L A WAHAB
In the present work, Ni$_{0.9}$X$_{0.1}$O (X = Cd or Cu or Cu + Cd) have been prepared using the chemical precipitation method. X-ray diffraction manifests that the prepared compositions are nanometre-sized with an average size 3–4 nm. The undoped and doped NiO exhibit fcc structure. The dc and ac conductivities of the as-prepared nanocompositions have been executed in the frequency range 50 Hz–5 MHz and in the temperature range 305–435 K. The acconductivity displays temperature and frequency dependence. The ac conductivity mechanism of the studied compositions was explained via the correlated barrier hopping conduction mechanism. The study of the magnetization property at room temperature shows weak ferromagnetic behaviour. Irradiating the samples by 100 kGy electron beam, it is observed that while a decrease in the magnetic coercivity is accounted for pure and Cd-doped NiO, its value has been increased in Cu and (Cd + Cu) doped NiO.
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Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
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Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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