ausblenden:
Schlagwörter:
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Zusammenfassung:
Co2Mn1-xFexSi Heusler alloys with Fe concentration x = 0-0.4 as prepared
by arc melting show a L2(1) long range order for all Fe concentrations.
Magnetic properties of Co2Mn1-xFexSi Heusler alloys were investigated by
magnetometry and circular magnetic dichroism. The magnetization of the
Fe doped Heusler alloys is in agreement with the Slater-Pauling values
expected for half-metallic ferromagnets. Element specific magnetic
moments as determined by x-ray absorption using the total electron yield
method are in disagreement with theoretical predictions for x = 0 but
approach the predicted values as the Fe concentration increases.
Surprisingly small Fe concentration increases the magnetic moments of
all constituents considerably.
