skip to main content

Title: Room temperature ferromagnetism in Mg-doped ZnO nanoparticles

Zn{sub 1-x}Mg{sub x}O (x = 0, 0,10) nanoparticles were successfully synthesized using sol-gel method. X-ray diffraction (XRD) confirms that the synthesized nanoparticles possess wurtzite phase having hexagonal structure. Morphological analysis was carried out using transmission electron microscopy (TEM) which depicts the spherical morphology of ZnO nanoparticles. Energy dispersive spectroscopy (EDS) showed the presence of Mg in ZnO nanoparticles. Electron spin resonance (ESR) signal was found to be decreasing with increasing of Mg-doping concentration. The room temperature ferromagnetism was observed in undoped and Mg-doped ZnO nanoparticles. The increase of Mg-doping concentration resulted in decrease of saturation magnetization value which could be attributed to decrease of oxygen vacancies present in host nanoparticles.
Authors:
;  [1] ; ;  [2]
  1. Department of Applied Sciences, Chandigarh University, Gharuan, Mohali-140413 (India)
  2. Nano Research Lab, School of Physics and Materials Science, Thapar University, Patiala-147 004 (India)
Publication Date:
OSTI Identifier:
22490345
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CONCENTRATION RATIO; DOPED MATERIALS; ELECTRON SPIN RESONANCE; FERROMAGNETISM; HEXAGONAL LATTICES; MAGNETIZATION; MORPHOLOGY; NANOPARTICLES; OXYGEN; SOL-GEL PROCESS; TEMPERATURE RANGE 0273-0400 K; TRANSMISSION ELECTRON MICROSCOPY; VACANCIES; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY; ZINC OXIDES