Growth of Co-doped ZnO nanoparticles by porous alumina assisted sol–gel route: Structural optical and magnetic properties

Preparation and characterization of undoped and cobalt doped ZnO for antimicrobial use

“…It is to be noted the changes occurred in the lattice parameters, in particular c, and the crystallite size. The recorded changes may be explained by the change of the ionic radii in different coordination states (Al-Salman and Abdullah, 2013; Fu et al, 2013;Karak et al, 2015;Karzazi et al, 2015;Poongodi et al, 2015;Xu and Cao, 2009), i.e. : in octahedral coordination the ionic radius of Co 2+ is 0.78 Å, whereas that of Zn 2+ is 0.74 Å, which can lead to decreasing of parameter c, while in tetrahedral coordination the ionic radius of Co 2+ is 0.58 Å, whereas that of Zn 2+ is 0.60 Å, which can lead to parameter c increasing.…”

Magnetic and optical properties of Co-doped ZnO nanocrystalline particles

“…Among all transition metal doped ZnO DMS's Co doped ZnO has attracted much attention not only for its RTFM [30,31], but also due to high solubility limit of Co in ZnO and large magnetic moment per 'Co' ion [32,33]. The cobalt ion Co þ2 has almost the same radius as the Zn þ2 ion.…”

Doping effect and oxygen defects boost room temperature ferromagnetism of Co-doped ZnO nanoparticles: experimental and theoretical studies

“…To further analyze the effects of doping Co atoms and oxygen defects on the magnetization, all the M-H curves were tted by BMP's model, 10,[41][42][43] as shown in Fig. S1 and S2.…”