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Investigations on structural and magnetic properties of Mn doped Er2O3

IR@NPL: CSIR-National Physical Laboratory, New Delhi

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Title Investigations on structural and magnetic properties of Mn doped Er2O3
 
Creator Tomar, Renu
Kumar, Parmod
Kumar, Ashish
Kumar, Ashok
Kumar, Pawan
Pant, R. P.
Asokan, K.
 
Subject Inorganic Chemistry
Physical Chemistry
Applied Physics/Condensed Matter
 
Description We report the structural, optical and magnetic properties of Mn doped Er2O3 samples. X-ray diffraction study shows that dilute concentration of Mn in Er2O3 lattice leads to change in lattice parameter as well as the crystallite sizes. The change in these parameters is attributed to difference in ionic radii of dopant and host. The changes in particle sizes and surface morphologies were confirmed by scanning electron microscopy and their composition by energy dispersive X-ray measurements. Electron paramagnetic resonance (EPR) studies show that increase in Mn doping causes oxygen vacancies and hence enhancement in magnetization. The intensities of Raman and photoluminescence spectra decreases with Mn concentration inside the host lattice. Further, it is found that photoluminescence bands cover most of the Raman band in the region of 200 cm(-1)-700 cm(-1) when excited by 514 nm laser.
 
Publisher Elsevier
 
Date 2017-05
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://npl.csircentral.net/2762/1/Investigations%20on%20structural%20and%20magnetic%20properties.pdf
Tomar, Renu and Kumar, Parmod and Kumar, Ashish and Kumar, Ashok and Kumar, Pawan and Pant, R. P. and Asokan, K. (2017) Investigations on structural and magnetic properties of Mn doped Er2O3. Solid State Sciences, 67. pp. 8-12. ISSN 1293-2558
 
Relation http://npl.csircentral.net/2762/