01318nas a2200169   4500008004100000022001400041245016700055210006900222260008300291300002300374490000700397520056300404100001800967700001900985700002501004856011901029       2006                        eng d  a1098-012100aExperimental comparison of the structural, magnetic, electronic, and optical properties of ferromagnetic and paramagnetic polycrystalline Zn1-xCoxO (x=0,0.05,0.1)0 aExperimental comparison of the structural magnetic electronic an  aONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USAbAMERICAN PHYSICAL SOCcJUL  aArticle No. 0332010 v743 a<p>Ferromagnetism at room temperature is observed in one case whereas paramagnetism down to 12 K is observed in the second case when polycrystalline Zn1-xCoxO is synthesized under almost identical conditions. Identical x-ray diffraction, optical absorption, and x-ray photoelectron spectroscopy results indicate the incorporation of Co2+ ions in the ZnO lattice in both cases. However, electron diffraction studies show the presence of Co metal impurities in the ferromagnetic samples, indicating that pure Co doped ZnO is not likely to be ferromagnetic.</p>1 aDeka, Sasanka1 aPasricha, Renu1 aJoy, Pattayil, Alias  uhttps://library.ncl.res.in/content/experimental-comparison-structural-magnetic-electronic-and-optical-properties-1