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  • 1965-1969  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Czechoslovak journal of physics 15 (1965), S. 64-70 
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Zusammenfassung 1. Es wurde gezeigt, da\ durch Aufwachsen epitaxialer Schichten an von {100}-FlÄchen begrenzten Eisenwhiskern grö\ere KristÄllchen vonα-Eisen mit glatten kristallographischen FlÄchen mit den gleichen Indizes hergestellt werden können Ein Aufwachsen an {110}-FlÄchen führte in keinem Fall zu glatten OberflÄchen Es wurden folgende Bedingungen für einen chemischen Transport gefunden, die für eine Herstellung von Kristallen durch ein orientiertes Aufwachsen geeignet sind: Temperatur der Wachstumszonet 1〉830
    Notes: Abstract The method of chemical transport is used for preparing crystals ofα-iron. The epitaxial growth of iron on iron seed crystals (whiskers) is studied during transport in closed quartz ampoules. The influence of a change in characteristic conditions, i.e. of the temperature of the growth zone, the difference in temperatures of the reaction and growth zones, the distance between the whiskers and the source, and the kind and concentration of the transport agent, on the quality of the surface of the grown layer is investigated. It was found that the method of chemical transport can be used to prepare larger crystals, bounded by smooth mirror-like surfaces of the same orientation, by the growth of new layers on the seed whiskers with external limitation by the {100} surfaces. Thin (≃ 10 Μ) plate-like crystals regularly appeared in ampoules filled with hydrogen bromide.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Czechoslovak journal of physics 16 (1966), S. 837-841 
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Ferromagnetic resonance measurements were performed in single crystals of α-iron in the form of thin platelets. These platelets were grown from the vapour phase; their thickness was several microns. The frequency used in the measurements was in the region of 20 to 72 GHz and the samples were statically magnetized parallel to the plane of the platelet. By comparing the line-widths obtained from measurements with a macroscopic theory of the line-shape the values of the frequency-independent Landau-Lifšic damping constant (λ=4·2×107 rad/sec) and surface anisotropyK s = 0·03 erg/cm2) were evaluated.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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