Record Details

<strong>Structural, elastic and magnetic properties of spinel Co3O4</strong>

Online Publishing @ NISCAIR

View Archive Info
 
 
Field Value
 
Authentication Code dc
 
Title Statement <strong>Structural, elastic and magnetic properties of spinel Co3O4</strong>
 
Added Entry - Uncontrolled Name MEENA, P L; Deen Dayal Upadhyaya College (Unversity of Delhi)
Kumar, Ravi ; Centre for Material Science and Engineering, National Institute of Technology, Hamirpur 177 005, India
Sreenivas, K ; Department of Physics and Astrophysics, University of Delhi, North Campus, Delhi 110 007, India
 
Uncontrolled Index Term Physics, Material Science
Co3O4 ;X-ray diffraction; Rietveld refinement; Fourier transforms infrared; Raman spectra; Force constants; Elastic modulus; Anti-ferromagnetism
 
Summary, etc. We have investigated the structural and magnetic properties of Co<sub>3</sub>O<sub>4</sub> ceramic synthesized by solid state reaction method. Powder X-ray diffraction (XRD), Raman spectroscopic and Fourier transforms infrared (FTIR) analysis reveals single phase formation at room temperature. Analysis of XRD data indicates that the Co<sub>3</sub>O<sub>4</sub> crystallizes in cubic symmetry with face-centered cubic (fcc) Bravais lattice. Force constants and elastic properties have been estimated at room temperature using XRD and FTIR spectra and interpreted in terms of bond lengths. An octahedral broadening of the FTIR band (<em>v</em><sub>o</sub>) and large force constant (k<sub>o</sub>) has been observed and indicated the inverse proportionality relationship between the force constant and the bond length. The elastic moduli and Poisson’s ratio uncorrected and corrected to zero porosity reveals the solidification of the Co<sub>3</sub>O<sub>4</sub> ceramic sample. The field cooled (FC) and zero field cooled (ZFC) magnetization measurements using superconducting quantum interface device (SQUID) magnetometer exhibit a well-defined long-range antiferromagnetic order below transition (<em>T</em><sub>N</sub> = 40 K) temperature.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2018-11-16 12:46:02
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJPAP/article/view/17604
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 56, ##issue.no## 11 (2018): Indian Journal of Pure & Applied Physics
 
Language Note en
 
Terms Governing Use and Reproduction Note Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India © 2015. The Council of Scientific &amp; Industrial Research, New Delhi.