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  • 1
    Electronic Resource
    Electronic Resource
    Fine structure in the χ(2) signals of inorganic-organic nanocomposites (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 2709-2711 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Thin films of organically modified ceramics with nonlinear-optical-active chromophores produced in a sol-gel process exhibit Maker fringe signals which are superimposed by a periodic fine structure. The fine structure is shown to be due to Fabry–Perot resonances of the second-harmonic light which are stronger as compared to the amplitude corresponding to the regular Fresnel surface reflectivity by one to two orders of magnitude. The effect which is also observed on unpoled samples is tentatively ascribed to an accumulation and partial spontaneous orientation of the chromophores at the film surfaces.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.356201
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  • 2
    Electronic Resource
    Electronic Resource
    Path integral quantization of the dyonium (1985)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 26 (1985), S. 2231-2233 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: The dyonium is solved exactly by path integration. The Green's function for the dyonium is separated into the monopole harmonics and the radial path integral, and the radial Green's function is found in closed form. The exact energy spectrum is also obtained. Dirac's charge quantization condition is seen to be essential for performing path integration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.526852
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  • 3
    Electronic Resource
    Electronic Resource
    X-ray resonant magnetic scattering from FePd thin films (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 87 (2000), S. 5469-5471 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Depending on the growth conditions, FePd thin films can display a perpendicular magnetic anisotropy associated with chemical order. In competition with the shape anisotropy, this can lead to striped magnetic domains, with moments perpendicular to the film plane. Under these circumstances, magnetic flux closure should occur. The striped domains were studied with soft x-ray resonant magnetic scattering using circularly polarized light to demonstrate the presence of closure domains. Magnetic depth profiling was performed both at the Fe and Pd L3 edge, by measuring the magnetic diffraction peak intensities versus angle of incidence θ. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.373375
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  • 4
    Electronic Resource
    Electronic Resource
    Electron correlation and charge transfer at the Ni/Co interface (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 87 (2000), S. 5466-5468 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The evolving magnetism and electronic structure at the Ni/Co interface have been studied using x-ray absorption spectroscopy (XAS) and x-ray photoemission spectroscopy (XPS) with circularly polarized x rays. Deposition of ultrathin Ni films on thin films of Co grown on Cu(001) results in an intensity enhancement across the Co L2.3 absorption edge. By comparison, the intensity of the Ni L2.3 edge decreases as a function of Ni film thickness. The relative changes in the Ni and Co XAS intensities are interpreted as an electronic charge transfer from the Co to the Ni. Distinct changes in the Co 2p XAS and XPS line shapes after addition of the Ni overlayer imply a modification of the Co 3d electron correlation due to the charge transfer. The change in the electronic structure is related to the interface magnetism using magnetic circular dichroism sum rule analysis. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.373374
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  • 5
    Electronic Resource
    Electronic Resource
    Magnetic circular x-ray dichroism in transverse geometry: A new tool to study the magnetocrystalline anisotropy : The 41st annual conference on magnetism and magnetic materials (1997)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 81 (1997), S. 5355-5357 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The orbital and spin magnetic moments in 3d transition metals are no longer collinear when the electron spins are forced out of their easy direction by an applied magnetic field. This effect provides a new way to measure the anisotropy of the orbital magnetic moment using magnetic circular x-ray dichroism in a geometry where the photon helicity vector is perpendicular to the magnetization direction. As an experimental corroboration we studied the magnetic anisotropy in the Co orbital moment of a Co/Pt multilayer. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.364544
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