High temperature magnetic properties of nanocrystalline Sn0.95Co0.05O2

Bulletin of materials science

A Benyoussef¹  H Labrim²  M Boujnah⁵  A El Kenz⁵  E Salmani⁵  H El Moussaoui¹  O Mounkachi³  R Masrour⁴  M Hamedoun³  E K Hlil⁶  H Ez-Zahraouy⁵ 

[1] The Institute for Nanomaterials and Nanotechnology, MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), Rabat, Morocco$$LMPHE (URAC 12), Departement of Physique, BP 1014, Faculty of Science, Mohammed V-Agdal University, Rabat, Morocco$$The Institute for Nanomaterials and Nanotechnology, MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), Rabat, MoroccoThe Institute for Nanomaterials and Nanotechnology, MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), Rabat, Morocco$$LMPHE (URAC 12), Departement of Physique, BP 1014, Faculty of Science, Mohammed V-Agdal University, Rabat, Morocco$$LMPHE (URAC 12), Departement of Physique, BP 1014, Faculty of Science, Mohammed V-Agdal University, Rabat, MoroccoThe Institute for Nanomaterials and Nanotechnology, MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), Rabat, Morocco$$LMPHE (URAC 12), Departement of Physique, BP 1014, Faculty of Science, Mohammed V-Agdal University, Rabat, Morocco$$;National Centre for Energy, Sciences and Nuclear Techniques, CNESTEN, Morocco$$National Centre for Energy, Sciences and Nuclear Techniques, CNESTEN, MoroccoNational Centre for Energy, Sciences and Nuclear Techniques, CNESTEN, Morocco$$;The Institute for Nanomaterials and Nanotechnology, MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), Rabat, Morocco$$The Institute for Nanomaterials and Nanotechnology, MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), Rabat, MoroccoThe Institute for Nanomaterials and Nanotechnology, MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), Rabat, Morocco$$;Laboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, Safi, Morocco$$Laboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, Safi, MoroccoLaboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, Safi, Morocco$$;LMPHE (URAC 12), Departement of Physique, BP 1014, Faculty of Science, Mohammed V-Agdal University, Rabat, Morocco$$LMPHE (URAC 12), Departement of Physique, BP 1014, Faculty of Science, Mohammed V-Agdal University, Rabat, MoroccoLMPHE (URAC 12), Departement of Physique, BP 1014, Faculty of Science, Mohammed V-Agdal University, Rabat, Morocco$$;Institut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble Cedex 9, France$$Institut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble Cedex 9, FranceInstitut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble Cedex 9, France$$

关键词: Diluted magnetic semiconductors;    ferromagnetic;    SnO2;    ab-initio calculation;    KKRâ€�?�CPA;    spintronic.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Structural and magnetic properties of Sn_0.95Co_0.05O₂ nanocrystalline and diluted magnetic semiconductors have been investigated. This sample has been synthesized by co-precipitation route. Study of magnetization hysteresis loop measurements infer that the sample of Sn_0.95Co_0.05O₂ nanoparticle shows a well-defined hysteresis loop at 300 K temperature, which reflects its ferromagnetic behaviour. We confirmed the room-temperature intrinsic ferromagnetic (FM) semiconductors by ab initio calculation, using the theory of the functional of density (DFT) by employing the method of Korringaâ€�?�Kohnâ€�?�Rostoker (KKR) as well as coherent potential approximation (CPA, explain the disorder effect) to systems. The ferromagnetic state energy was calculated and compared with the local-moment-disordered (LMD) state energy for local density approximation (LDA) and LDAâ€�?�SIC approximation. Mechanism of hybridization and interaction between magnetic ions in Sn_0.95Co_0.05O₂ is also investigated. To explain the origin of ferromagnetic behaviour, we give information about total and atoms projected density of state functions.

【 授权许可】

Unknown