Dresden 2006 – wissenschaftliches Programm
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DS: Dünne Schichten
DS 24: Poster presentation
DS 24.47: Poster
Dienstag, 28. März 2006, 15:00–17:30, P2
Structural and magnetic investigations on Mn-implanted beta-Iron-Disilicide — •Frank Stromberg1, Helfried Reuther2, and Werner Keune1 — 1Angewandte Physik, Universität Duisburg-Essen, 47048 Duisburg, Germany — 2Forschungszentrum Rossendorf, 01314 Dresden, Germany
100 nm thick epitaxial beta-Iron-Disilicide films were grown on Si(100) substrates by MBE and ex-situ implanted with Mn-ions at energies of 90 and 150keV.
The doses varied from 1E16 to 1E17. X-Ray and Mössbauer spectroscopy confirmed the amorphization of the implanted films.
Hall measurements exhibit n-type behavior of the implanted samples whereas literature states that they should be p-type conducting.
The conductivity of the implanted samples is strongly enhanced but for the sample with the highest dose it drops.
Anomalous Hall effect and Magnetoresistance measurements were performed but a conclusive hint pointing at magnetic effects is only possible after SQUID measurements which are currently performed.