Investigations of magnetic and dielectric properties of cupric oxide nanoparticles

Rohini S. Bhalerao-Panajkar, Mandar M. Shirolkar, Raja Das, Tuhin Maity, Pankaj Poddar, S. K. Kulkarni

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Cupric oxide nanoparticles of ∼810 nm width and 4045 nm length self assembled as large particles ∼11.5 μm have been investigated, in the 10325 K temperature range, using magnetic and dielectric measurements. In magnetic measurements a single broad peak at ∼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.

Original languageEnglish
Pages (from-to)55-60
Number of pages6
JournalSolid State Communications
Volume151
Issue number1
DOIs
Publication statusPublished - Jan 2011
Externally publishedYes

Keywords

  • A. CuO nanoparticles
  • A. Dielectric
  • A. Ferromagnetic
  • D. Ferroelectric transition

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