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  • 1
    Electronic Resource
    Electronic Resource
    Magnetism of ultrathin films of Fe on Cu(100) : 35th annual conference on magnetism and magnetic materials (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 5209-5211 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Magnetism in ultrathin (1–10 ML) Fe films grown on Cu(100) has been studied by spin-polarized secondary electron emission spectroscopy. The variation of the magnetization with temperature and oxygen adsorption was investigated for various film thicknesses. The orientation of the magnetization for films between 5 and 6 ML thick switches reversibly between perpendicular (at low temperature) to in-plane (at high temperature). The switching transition temperature decreases with increasing film thickness, and is accompanied by a loss of long-range order over a range of 20–30 K. The transition is attributed to the temperature dependence of the perpendicular anisotropy. The effect of oxygen adsorption onto films with perpendicular remanence is to first suddenly turn the magnetization into the plane at a critical coverage, and then to kill the magnetization gradually with continued exposure. This indicates that the uniaxial surface anisotropy at the Fe-vacuum interface plays a major role in the magnetization of the film.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.348077
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  • 2
    Electronic Resource
    Electronic Resource
    Spin-resolved photoemission study of in situ grown epitaxial Fe layers on W(110) (abstract) (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 3367-3367 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Spin- and angle-resolved photoemission spectroscopy of in situ grown epitaxial Fe layers on W(110) shows bulklike behavior for more than two atomic Fe layers.1 For about 10 and more atomic layers of Fe we find a spin polarization of about −100% near the Fermi energy and +80% between 1 and 3 eV binding energy. For the bilayer of Fe drastic changes in the spin-resolved spectra and a 20% enhancement of the spin polarization compared to the bulk value are observed. The monolayer of Fe is ferromagnetically ordered with a spin polarization reduced by about 50%. A switching of the easy magnetization axis from [001] to [11¯0] is observed in the spin polarization with decreasing Fe layer thickness near d=(65±5) A(ring).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.338773
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Thickness dependence of the spin- and angle-resolved photoemission of ultrathin, epitaxial Ni(111)/W(110) layers (1989)
    Springer
    Applied physics 49 (1989), S. 573-578 
    Details
    ISSN: 1432-0630
    Keywords: 75.70Ak ; 73.60Aq ; 75.30Pd ; 79.60Cn
    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 thickness dependence of the magnetic band structure of ultrathin, epitaxial Ni(111)/W(110) layers has been studied by spin and angle-resolved photoemission spectroscopy. The changes of the spin-resolved photoemission intensities upon reducing the layer thickness depend strongly on the wavevector along the Γ-L line of the Brillouin zone. The measured exchange splittingΔ atk ≃1/3(Γ-L) andk ≃1/2(Γ-L) is found to be independent of the layer thickness for layers consisting of 3 or more atomic layers, whileΔ decreases rapidly with the layer thickness atk≃2/3(Γ-L). This behavior is very similar to the temperature dependence of the spin-resolved photoemission spectra of bulk Ni(111) at the samek-points.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00616982
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    Paper (German National Licenses)
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