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MOMENT CANTING IN METALLIC-GLASS RIBBONS USING SPATIALLY-RESOLVED MOSSBAUER-SPECTROSCOPY

PANKHURST, QA; MCCAMMON, CA; GIBBS, MRJ; (1993) MOMENT CANTING IN METALLIC-GLASS RIBBONS USING SPATIALLY-RESOLVED MOSSBAUER-SPECTROSCOPY. In: IEEE TRANSACTIONS ON MAGNETICS. (pp. 3460 - 3462). IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

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Abstract

Room temperature Fe-57 Mossbauer spectra of a field-annealed metallic glass of composition Fe78B13Si9 were recorded at ten different 500 mu m diameter locations on the ribbon, and compared with spectra obtained using conventional 1 cm diameter Mossbauer source. Deviations of up to +/- 1.5 % were observed in the difference spectra, indicating significant changes in the directions of the hyperfine fields at the Fe nuclei. Electron microprobe analysis showed that the iron composition of the ribbed varies by less than 0.3 at. %, and that these small variations are not correlated with the Mossbauer results. The Mossbauer data show that as well as the possible atomic-scale non-collinear spin structure, changes to the distribution of moment directions occur on a length scale of hundreds of microns.

Type: Proceedings paper
Title: MOMENT CANTING IN METALLIC-GLASS RIBBONS USING SPATIALLY-RESOLVED MOSSBAUER-SPECTROSCOPY
Event: 1993 IEEE International Magnetics Conference (INTERMAG 93)
Location: STOCKHOLM, SWEDEN
Dates: 1993-04-13 - 1993-04-16
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/59430
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