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  • Articles: DFG German National Licenses  (4)
  • 1990-1994  (4)
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  • Articles: DFG German National Licenses  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    The evolution of sputtered iron nitride thin films under thermal treatment (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 261-267 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The thermal evolution of reactively sputtered iron nitride thin films has been investigated by x-ray diffraction, Mössbauer conversion electron spectroscopy, transmission electron microscopy, and magnetic measurements. The results show that, independently of the original nitrogen content of the films, a similar composition of the end products after the 500 °C annealings is reached, being all composed of α-Fe plus γ'-Fe4N in a wide range of relative proportions. The magnetic characteristics, however, are different depending on the nitrogen content of the as-deposited films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347761
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Compositional and magnetic properties of iron nitride thin films (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 67 (1990), S. 7514-7519 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The compositional and magnetic properties of iron-nitride thin films deposited by dc reactive magnetron sputtering under various nitrogen partial pressure conditions have been investigated by x-ray diffraction, Mössbauer and Auger electron spectroscopy as well as magnetic measurements. The x-ray diffraction patterns indicate a mixed phase composition. 57Fe Mössbauer spectroscopy shows that part of the nitrogen atoms are randomly distributed on interstitial sites with the formation of nonstoichiometric compounds. The excessive width of the Mössbauer lines indicates the degree of disorder of the different iron nitride precipitates. The nitrogen concentration as a function of depth is obtained by sputter-etched Auger electron spectroscopy. Furthermore, the ferromagnetic films show moderate saturation magnetization and coercivities at room temperature as compared with pure iron thin films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.345812
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The formation of intermetallic phases by solid-phase reaction of Fe/Al multilayers (1993)
    Springer
    Applied physics 56 (1993), S. 113-118 
    Details
    ISSN: 1432-0630
    Keywords: 68.35 ; 64.00 ; 73.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Thin film multilayers of Fe and Al with thicknesses ranging from 10 nm/2 nm to 10 nm/420 nm Fe/Al are used as starting structures to produce intermetallic phases by solid-phase reaction during high-vacuum thermal annealings. By measuring the relative concentrations of the reacting Fe and Al species nearby the growing interfaces and using the recently introduced concept of effective heat of mixing of binary thin-film metallic systems, a method is suggested to predict the phases to be obtained from different combinations of initial multilayer thickness and annealing temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00517676
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Composition and magnetic properties of Fe/Fe x N thin film multilayers (1992)
    Springer
    Applied physics 54 (1992), S. 437-441 
    Details
    ISSN: 1432-0630
    Keywords: 68.50 ; 75.70
    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 structure, composition, and magnetic characteristics of thin films multilayers of iron-iron nitride with high magnetic moment and very low coercive field are investigated. The present study together with previous ones that described in detail the magnetic properties lead to the establishment of certain requirements to obtain iron-iron nitride multilayers with outstanding magnetic characteristics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00324168
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    Paper (German National Licenses)
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