<title>On the determination of the stray field structure by magnetic force microscopy (MFM)</title>

Abstract

Ill this paper the influence of work parameter of magnetic force microscopy (MIFM) on the magnetic contrast of the stray field measured in soft magnetic amorphous Fe-based ribbons using two-pass technique has been analyzed. It was proved that an increase in 1iZ separation of sample-tip during the second scan affects considerably the quality, contrast of obtained micrograph ofthe stray field image. Increase in AZ causes smaller interaction between the cantilever's tip and tested field. It is caused by smaller influence of the source field emitted from the sample on the magnetic tip. Deterioration and contrast's broadening of obtained pictures allows to analyse and detect the areas which have positive as well as negative magnetisation.

Investigation of Geometric and Electronic Structures of Heusler Alloys: Cubic and Tetragonal Lattices

“…It is evident that the values of suspensibility of the compounds with a tetragonal lattice are larger than those of the compounds with the cubic lattice. (Table 2) These results coincide with the experimental observations of Ni2.+xMn1-xGa and Ni2.+xMn1-xGa obtained by T. Breczko et al [Breczko et al (2007)] The results of the above authors show the increasing of magnetic suspensibility of these compounds from 0.2 -0.5 arb. Units to 1.0 arb.…”

“…Units to 1.0 arb. Units within the 280-350 K temperature range [Breczko et al (2007)]. These observations allow us to speculate that the lattice of the Ni2Mn Ga and Co2MnGa compounds could transform within the 280-350 K temperature range, i.e.…”