ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    A model that gives rise to effective dry friction in micromagnetics : 37th Annual conference on magnetism and magnetic materials (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 6516-6518 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Since dissipation requires motion, the velocity-independent friction of macroscopic systems must result from quick motions of some of its components. A model of coupled spins, some of which have irregular anisotropy directions, presents velocity independent loss. During a collective motion of the spin ensemble, an irregular spin can fall into its potential minimum, from which it is subsequently dragged out again. The effect is pronounced for a range of the ratio between the anisotropy and interatomic exchange coupling constants which is typical for rare-earth ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.352599
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Quantum oscillations in a confined electron gas (1997)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 389 (1997), S. 937-939 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] When metals are structured on nanometre length scales, their electrons are subject to confinement effects: the response of a confined electron gas is governed by Friedel oscillations of the electron density and Rudermann–Kittel–Kasuya–Yosida oscillations of the spin density. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/40081
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Ruderman–Kittel–Kasuya–Yosida polarizations in inhomogeneous media : The 6th joint magnetism and magnetic materials (MMM)-intermag conference (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 76 (1994), S. 6980-6982 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An analytical treatment of the Ruderman–Kittel–Kasuya–Yosida polarization in inhomogeneous media is possible for some simple models. This is exemplified with the half-spaces and slabs in one and three dimensions, and with an especially chosen potential barrier in one dimension.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.358062
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Influence of Cd vacancies on the photoluminescence of CdTe (1986)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 60 (1986), S. 452-454 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Cd vacancies are identified as responsible for both the 1.55-eV narrow band and the 1.591-eV bound exciton peak of the CdTe photoluminescence spectrum. The characteristic 1.44-eV broadband does not seem to be related to luminescent centers involving those vacancies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.337620
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Photoluminescence characteristics of undoped and terbium chloride doped zinc oxide films deposited by spray pyrolysis (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 2378-2381 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The photoluminescence characteristics of undoped and TbCl3-doped zinc oxide films deposited by the spray pyrolysis technique are reported. Undoped films present the characteristic blue-green emission peak at ∼508 nm observed in single-crystal and powder ZnO. The TbCl3-doped films present a luminescence peak at ∼540 nm. The light emission of the doped films decreases with time of exposure of the sample to the excitation light. The phenomenon is interpreted in terms of a simple model in which a competitive process of hole trapping and phototrapping occurs at a radiative recombination center generated by the TbCl3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.341055
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Ruderman–Kittel coupling between ferromagnets separated by a nonmagnetic layer (1990)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 57 (1990), S. 2954-2955 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: For the coupling of two ferromagnets separated by a nonmagnetic layer, the Ruderman–Kittel [C. Kittel, Quantum Theory of Solids (Wiley, New York, 1963)] theory gives an expression which oscillates as a function of the thickness of the laser and asymptotically decreases as the reciprocal square of the thickness. The prefactor is independent of the electron density.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.103737
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Effect of spin-flip processes on the Pauli susceptibility (1967)
    Springer
    The European physical journal 6 (1967), S. 297-306 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Résumé On calcule la réduction de la susceptibilité de Pauli provenant d'un Hamiltonien qui est responsable des processus de renversement de spin. Les résultats sont appliqués au couplage spin-orbite dans les métaux liquides ainsi qu'à l'interaction d'échange dans les métaux magnétiques aux hautes températures et dans les environs du point de Curie. Les corrections apportées à la susceptibilité sont petites.
    Abstract: Zusammenfassung Die Verminderung der Paulisuszeptibilität infolge einer Störung, welche Streuungen mit Spinumkehr ermöglicht, wird berechnet. Das Resultat wird auf die Spin-Bahn-Kopplung in flüssigen Metallen und auf die Austauschwechselwirkung in magnetischen Metallen bei hohen Temperaturen und in der Nähe des Curiepunktes angewandt. Die Korrekturen sind klein.
    Notes: Abstract The reduction of the Pauli susceptibility due to a perturbing Hamiltonian which allows for spin-flip processes is calculated. The results are applied to the spin-orbit coupling in liquid metals, and the exchange interaction in magnetic metals at high temperatures and near the Curie point. The corrections are small.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02422510
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    The dielectric constant of liquid metals (1973)
    Springer
    The European physical journal 15 (1973), S. 346-346 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02422499
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Influence of ferromagnetically ordered ion spins on a conduction electron (1967)
    Springer
    The European physical journal 6 (1967), S. 105-125 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Résumé Le déplacement du seuil d’absorption optique en semiconducteurs ferromagnétiques est examiné théoriquement à l’aide d’un modèle dans lequel un electron de conduction est couplé par échange aux spins des ions. L’effet de corrélation des spins à longue et courte portée sur l’énergie est calculé pour de hautes températures, dans la region critique et à l’aide de l’approximation d’ondes de spin.
    Abstract: Zusammenfassung Die Verschiebung der optischen Absorptionskante in ferromagnetischen Halbleitern wird theoretisch mit einem Modell untersucht, in welchem ein Leitungselektron durch Austausch an die Ionenspins gekoppelt ist. Der Effekt der lang- und kurzreichweitigen Ionenkorrelation auf die Elektronenenergie wird für hohe Temperaturen, im kritischen Bereich und mit der Spinwellennäherung berechnet.
    Notes: Abstract The shift of the optical absorption edge in ferromagnetic semiconductors is investigated theoretically with a model, in which a conduction electron is coupled by exchange to the ion spins. The effect of long and short range ion correlations on the electron energy is calculated for high temperatures, in the critical region and with the spin wave approximation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02422832
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Image potential for a medium with wavevector and frequency dependent dielectric function (1968)
    Springer
    The European physical journal 8 (1968), S. 194-201 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Résumé L’èquation du potentiel image quasistatique, induit par une charge dans un milieu semiinfini, est déduite pour une fonction diélectrique dépendant du vecteur d’onde et de la fréquence. L’équation est résolue de façon exacte sous l’hypothèse que la fonction diélectrique est locale dans la direction perdendiculaire à la surface. Cette solution est appliquée aux cas d’un metal, d’un semiconducteur et d’un isolateur; l’effet Schottky est discuté.
    Abstract: Zusammenfassung Für das quasistatische Bildpotential, induziert durch eine Ladung in einem Halbraum mit wellenlängen- und frequenzabhängiger Dielektrizitätsfunktion, wird eine Integralgleichung hergeleitet. Diese läßt sich exakt lösen unter der Annahme, daß die Dielektrizitätsfunktion lokal ist in Richtung senkrecht zur Oberfläche. Diese Lösung wird auf den Fall eines Metalles, Halbleiters und Isolators angewendet; der Schottky Effekt wird beschrieben.
    Notes: Abstract The equation for the quasistatic image potential induced by a charge is derived for a semiinfinite medium with wavevector and frequency dependent dielectric function. The equation is solved exactly for a dielectric function which is local in the direction perpendicular to the surface. This result is applied to the case of a metal, semiconductor and insulator; the Schottky effect is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02422723
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...