Document Details

Document Type : Article In Journal 
Document Title :
A novel recipe to improve the magnetic properties of Mn doped Ce02 as a room temperature ferromagnetic diluted metal oxide
A novel recipe to improve the magnetic properties of Mn doped Ce02 as a room temperature ferromagnetic diluted metal oxide
 
Subject : physics 
Document Language : English 
Abstract : Mn doped ceria nanocrystals have been prepared using hexamethylene triperoxide diamine assisted solvothermal technique for the first time. The impact of this novel recipe on the structure, magnetic and spectroscopic behaviors was discussed. The doped oxides were studied using X-ray powder diffraction (XRD), transmission electron microscopy, X-ray photoelectron spectroscopy (XPS), and magnetic measurements. The XRD analysis revealed that all the powders can be indexed to the pure cubic curia, revealing complete solubility of Mn atoms in the curia crystal structure with an interstitial substitution of Mn in the Ce sites. At the percolation concentration x=0.08 (Mn0.08Ce0.92O2), the Mn doped cerium oxide displays a very high saturation magnetization of 448 emu/g and coercivity of 175.5 Oe. The enhanced magnetic properties are attributed to the formation of the complex between the Mn ion and an oxygen vacancy which is confirmed by the XPS analysis. According to the obtained results, one can say that this novel synthetic recipe increased the solubility of Mn ions into the CeO2 crystal structure and improved the magnetization by more than 37 times compared to the Mn doped CeO2 prepared by conventional methods 
ISSN : 0304-8853 
Journal Name : JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 
Volume : 360 
Issue Number : 10 
Publishing Year : 1435 AH
2014 AD 
Article Type : Article 
Added Date : Tuesday, August 1, 2017 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
Faisal A Al-AgelAl-Agel, Faisal A InvestigatorDoctoratefagel2@yahoo.com
Esam Al-ArfajAl-Arfaj, Esam ResearcherDoctorate 
A.A Al-Ghamdi,Al-Ghamdi, A.A ResearcherDoctorate 
Yaroslav LosovyjLosovyj, Yaroslav ResearcherDoctorate 
Lyudmila M Bronstein,Bronstein,, Lyudmila M ResearcherDoctorate 
Waleed E MahmoudMahmoud, Waleed E ResearcherDoctorate 

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