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  • 1
    Electronic Resource
    Electronic Resource
    Spinpolarized OPW-band structure of magnetic semiconductors with application to EuO. Part II (1974)
    Springer
    The European physical journal 17 (1974), S. 215-231 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The OPW-method has been generalized for the calculation of spinpolarized energy bands in magnetic semiconductors and applied to the ferromagnetic semiconductor EuO. Part II describes the numerical methods used in the application to EuO together with a careful consideration of numerical problems involved. Finally the results of the calculations are presented. With the aid of selection rules and Van Hove-singularities a list of allowed optical transitions has been deduced. These results compare favorably with recent experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01475925
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Spinpolarized OPW-band structure of magnetic semiconductors with application to EuO. Part I (1974)
    Springer
    The European physical journal 17 (1974), S. 189-214 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The OPW-method has been generalized for the calculation of spinpolarized energy bands in magnetic semiconductors and applied to the ferromagnetic semiconductor EuO. Part I of this paper contains the general formulation of the method, a grouptheoretical analysis and qualitative predictions for the band structure. It is shown why the application of the OPW-method to heavy substances, as for instance to magnetic semiconductors, gives rise to difficulties due to instabilities in the related eigenvalue problem.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01475924
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Über die Diskrepanz zwischen klassischer und quantentheoretischer Behandlung photophysikalischer ProzesseIn Memoriam Professor Heinrich Labhart (1978)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 61 (1978), S. 1064-1071 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Eine Vielzahl photophysikalischer Prozesse kann theoretisch durch ein Dreiniveaux-Modell beschrieben werden. Die hier kritisch diskutierten exakten Lösungen der klassischen wie auch der quantenmechanischen Behandlung können im allgemeinen weit voneinander abweichen. Es ist gezeigt, weshalb einerseits die klassische Kinetik bei den bekannten Systemen bisher erfolgreich war und welche Eigenschaften andererseits nötig wären, um die Diskrepanzen merklich in Erscheinung treten zu lassen. Insbesondere lässt eine kurze Analyse der Zeitabhängigkeit neue interessante Effekte in der Pico-und Subpicosekundengegend erwarten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19780610316
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Molecular Quantum Beat Spectroscopy in External Fields as a Sensitive Probe of Excited State Properties (1982)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 65 (1982), S. 2338-2344 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The new phenomenon of the external field dependence of quantum beats in polyatomic molecules is studied on a model which offers analytical formulas for a series expansion to lowest order in the field. A comparison with recent experiments on the magnetic field effect in biacetyl suggests that, in addition to the level shift the triplet deactivation is also strongly field-dependent. New experiments are proposed.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19820650740
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    Paper (German National Licenses)
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