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
    Conductivity versus spin-lattice relaxation: Contrasting behavior in a correlated disordered structure (1995)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 103 (1995), S. 5776-5780 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We investigate by Monte Carlo simulations the frequency dependent conductivity σ(ω,T) and the spin lattice relaxation rate 1/T1(ω,T) due to the hopping motion of noninteracting particles in an uncorrelated and correlated disordered energy landscape. The conductivity shows a pronounced dispersion at low temperatures in both the correlated and the uncorrelated case, reminiscent of the non-Debye behavior observed in many disordered materials. In contrast, 1/T1(ω,T) exhibits the typical non-BPP form for uncorrelated energy disorder, but obeys an ordinary BPP-type behavior in the presence of finite correlations. Our results show that in general a simple relation between σ(ω,T) and 1/T1(ω,T) does not exist and that it might be difficult to account for the experimental findings, if interactions between the mobile particles are neglected. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.470458
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Optical fiber refractometer (1987)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 58 (1987), S. 2047-2048 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We report on the use of an optical fiber to measure the refractive index of liquid materials. With a relatively simple detection system, indices can be determined with an average accuracy of ±0.2%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1139513
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    A unified model for ion conduction in crystals of β- and β″-alumina structure (1998)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 109 (1998), S. 2316-2324 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We discuss a recently developed microscopic model for ion conduction in crystals of the β- and β″-alumina type, where the charge transport is associated with the motion of certain mobile defects. Monte Carlo simulations of the model provide a good quantitative description of the mixed alkali effect based on the fact that different types of mobile ions have a different preference to become part of a mobile defect. By taking into account the Coulomb interaction between the effectively charged defects and the disorder present in the conduction plane, also the conductivity spectra can be understood. We further show that our model reproduces the non-Arrhenius behavior of the dc-conductivity found in Na-β″-alumina. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.476799
    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...