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  • 1995-1999  (2)
  • 1996  (2)
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  • 1995-1999  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Optical absorption spectra of C70 thin films (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 80 (1996), S. 459-463 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Both optical transmission spectroscopy and photothermal deflection spectroscopy are used to determine the spectra of C70 thin films over a wide energy range (0.6–6.5 eV). Based on a molecular orbital model, the optical transitions for the C70 thin film are analyzed. The weak absorption spectra of C70 thin films are similar to that of an amorphous semiconductor. The optical energy gap is derived by a Tauc plot as 1.66 eV. The gap region can be described in terms used for amorphous semiconductors, having features such as an Urbach edge and subgap defect absorption, which are interpreted as a broadening due to disorder or impurities. The effects of the deflection medium on the weak absorption spectra of C70 films are discussed. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.362747
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  • 2
    Electronic Resource
    Electronic Resource
    Modular degeneracy of vacuum zero potential point and gauge transformations (1996)
    Springer
    International journal of theoretical physics 35 (1996), S. 2501-2505 
    Details
    ISSN: 1572-9575
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This paper presents an extended gauge theory which can contain the Higgs mechanism, considering λφ4 field theory as an example. It can introduce interaction into different vacuum modular degeneracy states and break modular degeneracy. At the same time we can obtain both massless and massive vector bosons. According to the extended gauge theory, gauge transformations can be classified into two kinds: those with fixed parameter, called simply definite gauge transformations, which have a function of breaking modular degeneracy, and indefinite gauge transformations, which have a function of keeping phase degeneracy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02085758
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    Paper (German National Licenses)
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