Nanocrystalline La1-xSrxCo1-yFe yO3 perovskites fabricated by the micro-emulsion route for high frequency response devices fabrications

Handle URI:
http://hdl.handle.net/10754/563730
Title:
Nanocrystalline La1-xSrxCo1-yFe yO3 perovskites fabricated by the micro-emulsion route for high frequency response devices fabrications
Authors:
Azhar Khan, Muhammad; Khan, Kamran; Mahmood, Azhar; Murtaza, Gulam; Akhtar, Majid Niaz; Ali, Irshad M.; Shahid, Muhammad; Shakir, Imran; Farooq Warsi, Muhammad
Abstract:
Nanocrystalline La1-xSrxCo1-yFe yO3 (x=0.00-0.60) perovskites were fabricated by a cheap economic route (i.e. micro-emulsion method) and characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM). TGA analysis showed ~35% weight loss. The crystallite size determined by XRD and SEM ranged from 30 to 80 nm and ~30 to 50 nm, respectively. The dielectric behavior was evaluated in the range of 1.0×106 Hz to 3.0×10 9 Hz at 298 K, the dielectric parameters resulting appreciably enhanced by co-doping with Sr and Fe. The maximum dielectric parameters (ε′=103.35, ε″=58.92 and tan δ=0.57) were observed for La0.4Sr0.6Co0.4Fe0.6O 3 at 15×106 Hz. Results suggest the potential use of these nanocrystalline perovskites in GHz-operated microwave devices. © 2014 Elsevier Ltd and Techna Group S.r.l.
KAUST Department:
Materials Science and Engineering Program; Physical Sciences and Engineering (PSE) Division
Publisher:
Elsevier BV
Journal:
Ceramics International
Issue Date:
Sep-2014
DOI:
10.1016/j.ceramint.2014.05.027
Type:
Article
ISSN:
02728842
Sponsors:
We are thankful to The Islamia University of Bahawalpur-63100 (Pakistan) and Higher Education Commission of Pakistan. One of the authors (Dr. I. Shakir) is thankful to Deanship of Scientific Research at King Saud University (RGP-VPP-312). The international foundation for science (IFS), Sweden is also highly acknowledged for grant no. W/5408-1.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorAzhar Khan, Muhammaden
dc.contributor.authorKhan, Kamranen
dc.contributor.authorMahmood, Azharen
dc.contributor.authorMurtaza, Gulamen
dc.contributor.authorAkhtar, Majid Niazen
dc.contributor.authorAli, Irshad M.en
dc.contributor.authorShahid, Muhammaden
dc.contributor.authorShakir, Imranen
dc.contributor.authorFarooq Warsi, Muhammaden
dc.date.accessioned2015-08-03T12:08:07Zen
dc.date.available2015-08-03T12:08:07Zen
dc.date.issued2014-09en
dc.identifier.issn02728842en
dc.identifier.doi10.1016/j.ceramint.2014.05.027en
dc.identifier.urihttp://hdl.handle.net/10754/563730en
dc.description.abstractNanocrystalline La1-xSrxCo1-yFe yO3 (x=0.00-0.60) perovskites were fabricated by a cheap economic route (i.e. micro-emulsion method) and characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM). TGA analysis showed ~35% weight loss. The crystallite size determined by XRD and SEM ranged from 30 to 80 nm and ~30 to 50 nm, respectively. The dielectric behavior was evaluated in the range of 1.0×106 Hz to 3.0×10 9 Hz at 298 K, the dielectric parameters resulting appreciably enhanced by co-doping with Sr and Fe. The maximum dielectric parameters (ε′=103.35, ε″=58.92 and tan δ=0.57) were observed for La0.4Sr0.6Co0.4Fe0.6O 3 at 15×106 Hz. Results suggest the potential use of these nanocrystalline perovskites in GHz-operated microwave devices. © 2014 Elsevier Ltd and Techna Group S.r.l.en
dc.description.sponsorshipWe are thankful to The Islamia University of Bahawalpur-63100 (Pakistan) and Higher Education Commission of Pakistan. One of the authors (Dr. I. Shakir) is thankful to Deanship of Scientific Research at King Saud University (RGP-VPP-312). The international foundation for science (IFS), Sweden is also highly acknowledged for grant no. W/5408-1.en
dc.publisherElsevier BVen
dc.subjectC. Dielectric propertiesen
dc.subjectD. Perovskitesen
dc.subjectMicrowave devicesen
dc.subjectNanocrystallineen
dc.subjectXRDen
dc.titleNanocrystalline La1-xSrxCo1-yFe yO3 perovskites fabricated by the micro-emulsion route for high frequency response devices fabricationsen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalCeramics Internationalen
dc.contributor.institutionDepartment of Physics, Islamia University of Bahawalpur, Bahawalpur-63100, Pakistanen
dc.contributor.institutionDepartment of Chemistry, Islamia University of Bahawalpur, Bahawalpur-63100, Pakistanen
dc.contributor.institutionCentre for Advanced Studies in Physics, Government College University, Lahore 54000, Pakistanen
dc.contributor.institutionDepartment of Physics, COMSATS Institute of Information Technology, Lahore 54000, Pakistanen
dc.contributor.institutionDepartment of Physics, Bahauddin Zakariya University, Multan, Pakistanen
dc.contributor.institutionDeanship of Scientific Research, College of Engineering, King Saud University, PO Box 800, Riyadh 11421, Saudi Arabiaen
dc.contributor.institutionInterdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology (CIIT), Lahore, Pakistanen
kaust.authorShahid, Muhammaden
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