Basic Electrical Engineering: v. 1 by P.S. Dhogal

By P.S. Dhogal

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Extra resources for Basic Electrical Engineering: v. 1

Example text

Such a behavior is clearly seen in the  vs. ln-1(T) plots, shown in Figure 25 (a), (b), (c) and (d), where linear regions are indicated by straight lines. Figure 26 gives a plot of {[(T)-min]/[4-min]} vs. Dominance of Magnetic Scattering in Al70Pd20+Xmn10-X… 37 (ln-1T/ln-1Tmin). It shows that plots corresponding to each composition have got nearly scaled. Thus, the occurrence of linearity in  vs. ln-1(T) plots, as indicated by thick lines in Figure 25, and the perfect scaling, as observed in Figure 26, strongly indicate the dominance of Kondotype spin-flip scattering in these quasicrystalline alloys.

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We have obtained the spin-flip scattering field by least square fitting of the data, shown as continuous curves in Figure 23. The refined parameters Bi, Bsf(max) (defined as Rsf/D), S and TK are summarized in Table-10. The scattering field parameters are expressed in units of (h/8e)cm-2 [70,71] and D is the electronic diffusivity. All the fitted parameters are found physical. Now, if we examine Table9 minutely, we will find that, the observed values of RT and min appear to be resultant of the interplay between sample‘s structural order and its magnetization.

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Basic Electrical Engineering: v. 1 by P.S. Dhogal
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