By K.H.J. Buschow
The guide sequence Magnetic fabrics is a continuation of the guide sequence Ferromagnetic fabrics. whilst Peter Wohlfarth began the latter sequence, his unique goal used to be to mix new advancements in magnetism with the achievements of prior compilations of monographs, generating a precious successor to Bozorth's classical and enormous publication Ferromagnetism. this can be the most cause that Ferromagnetic fabrics used to be first and foremost selected as identify for the guide sequence, even if the latter aimed toward giving a extra whole cross-section of magnetism than Bozorth's book.In the previous couple of many years magnetism has visible a tremendous growth right into a number of diverse parts of analysis, comprising the magnetism of numerous periods of novel fabrics that proportion with really ferromagnetic fabrics merely the presence of magnetic moments. consequently the Editor and writer of this guide sequence have rigorously reconsidered the name of the guide sequence and adjusted it into Magnetic fabrics. it's with a lot excitement that we will introduce to you presently quantity 12 of this instruction manual sequence.
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1989), Mertig et al. (1993, 1994), Irkhin and Irkhin (1996). The results of Mertig et al. (1993) for impurities in Ni are shown in fig. 24. Zahn et al. (1998) have also calculated the scattering by impurities located at various positions in Co/Cu multilayers. This calculation shows that the spin asymmetry of the scattering by a given impurity, compared to its value in a bulk metal or a thick layer, can be enhanced or reduced depending on its position in the multilayer. ¢3 Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Fig.
The other parameters are obtained by an independent determination of P~u and by a fit of eq. (18) to the straight lines in fig. 28(a). A similar linear variation of (AR/RAP) 1/2 has also been reported for Ni80Fe20/Cu nanowires (Dubois et al. 1997a, 1999). A quantitative analysis of CPP-GMR data has also been performed out of the long SDL limit. In the VF model (Valet and Fert 1993) for tN >> lsr~and tF still much smaller than ls~, the MR ratio is expected to decrease as exp(--tN/1N). This behavior is illustrated by experimental data on Co/Cu nanowires in fig.
14 and our comment in section 2), and this justifies the use of eqs (16)-(19) for a quantitative analysis of the experimental data. The Michigan State University group has also performed measurements on samples including two types of magnetic materials, Co/Cu/NisoFea0, and the results have been analyzed in the same resistor series model corresponding to the long SDL limit of the ValetFert model (Yang et al. 1995). A good fit is obtained by using the parameters P~u, P~o, fifo, /gNiFe, flNiFe, rco/Cu, YCo/Cu, rNiFe/Cu, YNiFe/Cu determined independently of the previous experiments on Co/Cu and Ni80Fe20/Cu multilayers.