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作者:M. El-Hilo , A.A. Dakhel , Z.J. Yacoob
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2019, Vol.482, pp.125-134
摘要:Abstract(#br)Zinc oxide doped with different concentrations of Co 2+ ions (ZnO:Co) nano-powders were synthesised by co-precipitation method using complexes zinc acetate dihydrate and cobalt acetylacetonate. The mass ratios of Co/Cd in the investigated samples were 0.5% 1%, 2%, an...
作者:M. El-Hilo , K. O'Grady , R.W. Chantrell
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 1995, Vol.140, pp.359-360
摘要:Abstract(#br)In this paper the effect of particle interactions on the behaviour of the thermoremanent magnetisation (TRM) curve is examined. The variation of the TRM with cooling field is well known, and shows an anomalous peak rather than a monotonic increase to saturation. In t...
作者:M. El-Hilo , J. Al Saie ...
来源:[J].Physica B: Physics of Condensed Matter(IF 1.327), 2009, Vol.404 (21), pp.3991-3994
摘要:Abstract(#br)In this work a simple technique to extract the texture function in granular thin film media is implemented. The technique is based on previous work in which the distribution function of particles easy axes f ( α ) is calculated from the measured parallel remanen...
作者:M. El-Hilo , K. O’Grady , R.W. Chantrell
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2002, Vol.248 (3), pp.360-373
摘要:Abstract(#br)In this paper, the behaviour of the fluctuation of the fluctuation field ( H f ) and its relationship with the activation energy for reversal in magnetic systems is examined. At a constant level of magnetisation, the link between thermal energy and field induced...
作者:M. El-Hilo , I. Bsoul
来源:[J].Physica B: Physics of Condensed Matter(IF 1.327), 2006, Vol.389 (2), pp.311-316
摘要:Abstract(#br)In this paper, the interaction effects on the coercivity ( H c ) and Fluctuation fields ( H f ) of doped barium–ferrite particles at different concentrations are examined. Samples with different concentrations are prepared by mixing the original powder with a no...
作者:M. El-Hilo
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2009, Vol.322 (9), pp.1279-1282
摘要:Abstract(#br)In this work, the effect of different arrays arrangements on the magnetic behaviour of patterned thin film media is simulated. The modeled films consist of 80×80 cobalt grains of uniform diameter (20 nm) distributed into two different array arrangement: hexagona...
作者:M. El-Hilo , R.W. Chantrell
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2012, Vol.324 (16), pp.2593-2595
摘要:Abstract(#br)A formalism is presented which reconciles the use of different distribution functions of particle diameter in analytical models of the magnetic properties of nanoparticle systems. For the lognormal distribution a transformation is derived which shows that a distribut...
作者:M. El-Hilo
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2009, Vol.322 (9), pp.1620-1623
摘要:Abstract(#br)In this work the effects of dipolar coupling on the distribution of effective orientations in textured nano-patterned media is simulated. The modelled films consist of 50×50 cobalt grains of uniform diameters ( D =20 nm) arranged in hexagonal (triangular) arrays...
作者:M. El-Hilo , A.A. Dakhel , A.Y. Ali-Mohamed
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2009, Vol.321 (14), pp.2279-2283
摘要:Abstract(#br)Ni-doped ZnO powder was synthesized by thermal co-decomposition of a mixture of bis(acetylacetonato) zinc(II)hydrate and bis(dimethylglyoximato)nickel(II) complexes. The samples were characterised by X-ray diffraction (XRD), Energy dispersion X-ray fluorescence ...
作者:M. El-Hilo
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2003, Vol.272, pp.1700-1702
摘要:Abstract(#br)In this paper, the time dependence of coercivity ( H c ) in particulate systems in the thermal relaxation regime is calculated. The calculations were made for an aligned system of poly dispersed particles. In the thermal regime, the calculations show that the Br...

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