Magnetic properties of NiO nanoparticles

The effect of NiO doping on the structure, magnetic and magnetotransport properties of La0.8Sr0.2MnO3 composite

“…The LSMO/NiO composites should be important studied subjects in searching new LFMR materials. NiO has rhombohedral structure and is antiferromagnetic below 523 K whereas it has cubic structure and is paramagnetic above that temperature [20,21].…”

Investigations of DC-magnetization behavior of nanocrystalline ZnO:Ni

“…If it had been the case, T C would be lower than 631 K. In some cases, it has also been reported that small NiO particles exhibit superparamagnetic [38] or spin glass [39] behavior. This occurs when the particle size is very small [38] and/or the samples are synthesized at low temperatures of 120 or 350 • C [39]. In the present case, the samples are annealed at higher temperatures upto 900 • C, so we do not expect the present samples to show such behavior.…”

Room temperature luminescence and ferromagnetism of AlN:Fe

“…According to the Scherrer formula, 19 the average grain size of undoped AlN, sample A, and sample B is very close due to the similar FWHM values and Bragg angle of (002) peaks. The scanning electron microscope (SEM, FEI, XL-30) images 34 further confirm that the average grain size of AlN and AlN:Fe is really close to each other.…”