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  • 1
    Electronic Resource
    Electronic Resource
    Magnetic characterization of oxidized Fe-Nd alloys : The 5th Joint MMM−Intermag Conference (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 6480-6482 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In this work results of oxidation experiments on Fe-Nd alloys are presented. Samples were prepared by melting the metals and Nd oxide, and by melting the metals, stabilizing the alloys through long heat treatments, and oxidizing them in low-oxygen partial pressures. Two mechanisms of oxidation are observed, one with precipitation of a fine Nd2O3 dispersion in the alloy matrix, with simultaneous displacement of the phase compositions to Fe-rich values. Eventually, pure Fe striae are formed. The second mechanism corresponds to the direct formation of a mixed oxide and Nd2O3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.349906
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  • 2
    Electronic Resource
    Electronic Resource
    Description of magnetic anisotropy and spin–reorientation transitions in NdFe12−xMox and NdFe12−xMoxN (x=1.0, 2.0, 3.0) (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 80 (1996), S. 1659-1666 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: NdFe12−xMox and NdFe12−xMoxN (x=1,2,3) were investigated by studying the anisotropy field and the temperature or field-induced spin–reorientation transitions. The temperature dependence of the magnetic anisotropy field was determined by means of the singular-point-detection technique for polycrystalline aligned samples. A theoretical explanation of the magnetic anisotropy and the magnetic phase transitions is given. The temperature dependencies of the rare-earth anisotropy constants were calculated using the single-ion model within linear theory. Fitting the experimental data, a set of crystal-field and exchange-field parameters for Nd3+ ions was deduced. A first-order spin–reorientation transition from uniaxial to conical phase and a type-2 first-order magnetization process in the perpendicular field are calculated for NdFe11Mo. A canted magnetic structure and a type-1 first-order magnetization process in the axial field are predicted for NdFe12−xMoxN. A change of rare-earth anisotropy after nitrogenation was explained by a bonding charge and a superposition model. The calculated temperature dependence of the anisotropy fields in NdFe12−xMoxN is in good agreement with the experimental data over a wide temperature range. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.362964
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  • 3
    Electronic Resource
    Electronic Resource
    Hysteretic giant magneto impedance (1998)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 84 (1998), S. 5814-5816 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Giant magneto impedance (GMI) has been measured in Fe77.5Si13.5B9 wires and Co67Fe3Cr3Si15B12 ribbons. The samples were annealed in order to induce specific anisotropies. An hysteretic behavior of the GMI is observed in both cases. Results show that this hysteretic behavior is related to irreversible changes in the magnetization processes of the samples. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.368848
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    Paper (German National Licenses)
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