X-ray powder diffraction study on bulk Cupric Oxide (CuO) below room temperature
Crystal structure, Ferroelectricity, Magnetism
Abstract: The differential scanning calorimetry (DSC) and x-ray powder diffraction (XRD) measurements were carried out on CuO powder samples below room temperature. The DSC measurement unambiguously confirms two magnetic transitions at TN2 ~ 230 K and TN1 ~ 213 K. I reconfirms C2/c space group for CuO at room temperature by the Rietveld analysis of x-ray powder diffraction (XRD) data. The structural analysis proves Cc space group for CuO below TN2 ~ 230 K. The Cc space group is non- centrosymmetric. The magnetic transition below TN2 ~ 230 K breaks inversion symmetry of CuO and induced polarization of ~ 10-1 µC/cm2. The ferroelectric phase again transforms into paraelectric phase below magnetic TN1 ~ 213 K. The x-ray diffraction data collected below 213 K is refined well by C2/c space group. The plot of structural parameters with temperature show clear evidence for ferroelectric transition at TC ~ 230 K.
"X-ray powder diffraction study on bulk Cupric Oxide (CuO) below room temperature ", IJSDR - International Journal of Scientific Development and Research (www.IJSDR.org), ISSN:2455-2631, Vol.7, Issue 2, page no.18 - 23, February-2022, Available :https://ijsdr.org/papers/IJSDR2202002.pdf
Volume 7
Issue 2,
February-2022
Pages : 18 - 23
Paper Reg. ID: IJSDR_193942
Published Paper Id: IJSDR2202002
Downloads: 000347039
Research Area: Engineering
Country: Jaunpur, Uttar Pradesh, India
ISSN: 2455-2631 | IMPACT FACTOR: 9.15 Calculated By Google Scholar | ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 9.15 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator
Publisher: IJSDR(IJ Publication) Janvi Wave
