Fe overlayers

Figure 4 is that the reacting Fe overlayer directly modifies the Cu... 

A set of data for different Fe/Cr/Fe(001) trilayers are presented in Fig. 1. The left hand side of the Figure shows a sketch of the investigated samples, consisting of a clean Fe(OOl) substrate on top of which Cr and Fe films were deposited at room temperature at typical rates of 0.5-1.5 A/min. The data discussed here were taken on trilayers with different values of the Cr spacer thickness, whereas the top Fe overlayer was in any case 7 ML thick. 

N2 desorption from N chemisorbed on a Fe-overlayer on Ru(00 1) shows a temperature programmed desorption peak at 850-950 K [506]. 

Wu R and Freeman A J 1994 Magnetism at metal-ceramic interfaces effects of a Au overlayer on the magnetic properties of Fe/MgO(001) J. Magn. Magn. Mater. 137 127-33... 

ALLOYING ASPECTS OF THE MAGNETIC GROUND STATE AND ANISOTROPY OF Fe/Cu THIN FILM OVERLAYERS... 

For chelant overlay programs PAA/PMA (for Fe) blends are generally satisfactory, but where improved dispersion is required PCA 16 is recommended. PCA 16 is suitable for up to 1,000 psig. 

Figure4.25. LEED pattern obtained from N atoms on Fe(l 11) at Ep = 42 eV. The surface is estimated to have a coverage of 0.96 Ml nitrogen and is reconstructed into a 5x5 overlayer structure. The dark shadow in the...

The reduced magnetite with alumina was found to have a N2 BET surface area of 29 m per gram of catalyst. When adsorbing N2 dissociatively it was found that 2.2 mL [standard conditions, i.e. 273 K and 1 bar (= 100000 Pa)] of N2 could be adsorbed per gram of catalyst. Assuming that the atomic nitrogen forms a c(2x2) overlayer on the Fe(lOO) surface determine the iron area per gram of catalyst. The lattice distance of iron is 0.286 nm. 

The physical origin of this structural flexibility of the FeO overlayer is still unclear, the more so since no clear trend is observable in the sequence of lattice parameters of the coincidence structures. The FeO(l 11) phase forming up to coverages of 2-3 ML is clearly stabilized by the interactions with the Pt substrate since FeO is thermodynamically metastable with respect to the higher iron oxides [106,114], FeO has the rock salt structure and the (111) plane yields a polar surface with a high surface energy [115], which requires stabilization by internal reconstruction or external compensation. The structural relaxation observed in the form of the reduced Fe—O... 

Figure 14 Overlay of Pourbaix diagrams for Al, Fe, and Zn, showing that there exists a region of potential and pH within which Al and Zn would be expected to form solid films (i.e., passivate) and lose their ability to corrode sacrificially and protect the steel. (From Ref. 22.)...

It is beyond the scope of this chapter to delve into the details of previous studies on SE polarizations. However, for comparative purposes it is worthwhile to examine the range of experimental results using a variety of projectiles and substrates, which are summarized in Table 1 where the maximum SE spin polarization is presented for a variety of systems. The maximum polarization always occurs at low energies, typically 1-2 eV. Most work has centered on Fe (100) and Fe(110), with maximum polarizations ranging between 17 and 70%. It is worth noting the effect of overlayers on the polarization. For metallic,... 

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