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We report on the passivation of surface defects of ZnO nanorods by surface layer deposition. ZnO nanorods and ZnS-ZnO hybrid nanostructures are grown on FTO coated glass substrate by chemical bath deposition method. XRD spectrum of ZnO nanorods shows
Externí odkaz:
http://arxiv.org/abs/1806.08509
We have studied the magnetic and transport behavior of doped La0.65 A0.35 Mn0.95Fe0.05 O3 (A= Ca, Sr, Pb, Ba) compounds. All the compositions show ferromagnetic/metal to paramagnetic/insulator transition except the Pb doped sample which is insulating
Externí odkaz:
http://arxiv.org/abs/1009.5903
Autor:
Shah, Wiqar Hussain, Hasanain, S. K.
We have studied the dynamic response of Fe doped manganites with ac susceptibility measurements on bulk La0.65Ca0.35Mn1-yFeyO3 with 0.01
Externí odkaz:
http://arxiv.org/abs/1007.3817
Autor:
Shah, Wiqar Hussain, Hasanain, S. K.
The effect of Fe substitution on Mn sites in the colossal magnetoresistive compounds La0.65Ca0.35Mn1-xFexO3 with 0.01
Externí odkaz:
http://arxiv.org/abs/1007.1943
Publikováno v:
J. Phys.: Condens. Matter 20 (2008) 025210
The observed correlation of oxygen vacancies and room temperature ferromagnetic ordering in Co doped ZnO1-o nanoparticles reported earlier (Naeem et al Nanotechnology 17, 2675-2680) has been further explored by transport and optical measurements. In
Externí odkaz:
http://arxiv.org/abs/0705.1593
Magnetic nanoparticles of cobalt ferrite have been synthesized by wet chemical method using stable ferric and cobalt salts with oleic acid as the surfactant. X-ray Diffraction (XRD) and Transmission Electron Microscope (TEM) confirmed the formation o
Externí odkaz:
http://arxiv.org/abs/cond-mat/0606631
Magnetic properties of core-shell cobalt ferrite nanoparticles 15 to 48nm prepared by a sol-gel route have been studied. It is shown that the coercivity follows non-monotonic size dependence varying as 1/d above the maximum (d is the particle size).
Externí odkaz:
http://arxiv.org/abs/nlin/0604027
Autor:
Naeem, M., Hasanain, S. K., Kobayashi, M., Ishida, Y., Fujimori, A., Buzby, Scott, Shah, S. Ismat
Publikováno v:
Nanotechnology 17 (2006) 2675--2680
We report the crystal structure and magnetic properties of Zn1-xCoxO nanoparticles synthesized by heating metal acetates in organic solvent. The nanoparticles were crystallized in wurtzite ZnO structure after annealing in air and in a forming gas (Ar
Externí odkaz:
http://arxiv.org/abs/cond-mat/0512597
Fe2O3 nanoparticles of different sizes ranging from 22 to 56nm were synthesized chemically by a modified sol-gel method. Pure alpha phase particles as well as particles with admixture of alpha and gamma phase were obtained and identified by x-ray and
Externí odkaz:
http://arxiv.org/abs/cond-mat/0408480