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Volume 44 All articles Published: 30 October 2021 Article ID 0274
Magnetotransport properties of polycrystalline La$_{0.75}$Ho$_{0.05}$Sr$_{0.2}$MnO$_3$
A ELGHOUL A KRICHENE N CHNIBA BOUDJADA W BOUJELBEN
In this study, we have tried to simulate both temperature and magnetic field dependence of electrical resistivity for polycrystalline La$_{0.75}$Ho$_{0.05}$Sr$_{0.2}$MnO$_3$. The studied sample was elaborated by sol–gel method. The energydispersiveX-ray confirms the presence of Ho element. The temperature dependence of resistivity in the whole temperature range (100–300 K) was successfully fitted by phenomenological percolation model, testifying the percolative natureof the electrical transition. The evolution of the volume fraction of the ferromagnetic phase is in agreement with the magnetic properties. The magnetic field dependence of resistivity follows the recently established universal behaviour of resistivity, which may confirm the validity of this model.
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Bulletin of Materials Science
Volume 45, 2022
All articles
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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
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