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  • 1
    Electronic Resource
    Electronic Resource
    Mössbauer study of the fast magnetization reversal in FeBO3 induced by external RF magnetic fields (1987)
    Springer
    Applied physics 44 (1987), S. 131-134 
    Details
    ISSN: 1432-0630
    Keywords: 76.00 ; 75.00
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The effect of fast magnetization reversal induced by external radio frequency (rf) fields has been studied in FeBO3 using the Mössbauer technique. The rf collapse and sideband effects were investigated as a function of intensity for two rf field frequencies: 62 and 36 MHz. The switching times estimated for magnetization reversal are of the same order of magnitude as in amorphous metals and Fe-Ni alloys. Because of the relatively short switching times the magnetization reversal must be of rotational character.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00626413
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Polarization and thickness effects in Mössbauer spectroscopy (1991)
    Springer
    Hyperfine interactions 67 (1991), S. 701-709 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The relative line intensities of a magnetic hyperfine spectrum reflect the polarization of emitting and absorbing γ-rays. In resonatly thin absorbers spin orientation can be derived. In very thick samples each polarized line (circular or linear) can absorb by itself only up to one half of the resonant γ-rays from an unpolarized source. For the other half, with opposite helicity or linearity, the material is transparent (dichroism). Two effects in α-Fe will be described: 1. When two lines of opposite polarity are in close proximity an apparent line may developin between the actual resonance lines. 2. A thick absorber in a transverse magnetic field may exhibit small-but sharp-lines on top of the broad resonance lines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02398222
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A comparison of the effects of rf fields on iron borate and an amorphous metal (1990)
    Springer
    Hyperfine interactions 54 (1990), S. 723-729 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A comparison of the results obtained on applying radio frequency fields (59.23 MHz; amplitude 13 Oe) to the soft ferromagnetic amorphous alloy Fe81Si3.5B13.5C2 and a single crystal of the weak ferromagnetic insulator FEBO3 is presented. Spectra were accumulated in switched rf fields experiments in which the rf ON and OFF cycles were synchronised to the two halves of the triangular velocity sweep. Heating effects are found to contribute to the partial spectral collapse observed in both samples when subjected to an rf field, particularly the metallic amorphous alloy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02396119
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    Paper (German National Licenses)
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