Investigations of magnetic and dielectric properties of cupric oxide nanoparticles

TitleInvestigations of magnetic and dielectric properties of cupric oxide nanoparticles
Publication TypeJournal Article
Year of Publication2011
AuthorsBhalerao-Panajkar, RS, Shirolkar, MM, Das, R, Maity, T, Poddar, P, Kulkarni, SK
JournalSolid State Communications
Date PublishedJAN
KeywordsCuO nanoparticles, Dielectric, Ferroelectric transition, Ferromagnetic

Cupric oxide nanoparticles of similar to 8-10 nm width and 40-45 nm length self assembled as large particles similar to 1-1 5 mu m have been investigated in the 10-325 K temperature range using magnetic and dielectric measurements In magnetic measurements a single broad peak at similar to 230 K in a zero field cooled sample has been observed Coercivity in magnetization measurements at 10 K suggests that the nanoparticles are core-shell type particles with an antiferromagnetic core and a ferromagnetic shell Dielectric measurements at various frequencies from 3 7 Hz to 949 kHz exhibit a sharp peak at 284 K followed by weak anomalies around 213 and 230 K (C) 2010 Elsevier Ltd All rights reserved

Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)1.90
Divison category: 
Physical and Materials Chemistry