Library

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 fluctuation-dissipation relation and its applications to thermodynamic fluctuations in superconducting cylinders (1970)
    Springer
    Journal of statistical physics 2 (1970), S. 305-322 
    Details
    ISSN: 1572-9613
    Keywords: Linear response ; generalized susceptibility ; covariance ; spectrum ; relaxation ; superconducting cylinder ; magnetic flux ; current ; magnetization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Modifying slightly Kubo's formulation of perturbation theory to take care of the fact that generalized susceptibility may not be zero at infinite frequency, we establish, in the classical limit, a general relation between covariance and generalized susceptibility. The relation is then applied to evaluate the covariances of the magnetic flux, currents, and magnetization of a superconducting cylinder. Expressions for the spectra of magnetic flux and magnetization are also obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01020440
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Diffusionlike equation for superconducting binary alloys (1974)
    Springer
    Journal of low temperature physics 14 (1974), S. 373-385 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A diffusionlike equation is derived within the coherent potential approximation (CPA) for type II (or inhomogeneous), superconducting binary alloys. Diagrammatic formulation of the CPA is employed to extend the derivations of Eilenberger and Usadel to nondilute random substitutional alloys A 1−s B s having arbitrary concentrations and scattering strength. The generalized diffusion coefficient satisfies a simple algebraic equation, the coefficients of which are connected to measurable physical quantities. The diffusionlike equation is valid for arbitrary values of the order parameter at arbitrary temperatures belowT c . When the order parameter Δ is small, simple expansions in terms of Δ would lead immediately to the generalized Landau-Ginzburg equations. The upper critical magnetic field and magnetization are expressed as functions of concentrations of the binary alloy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00655341
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Effects of rotation and gravity on superconductors (1973)
    Springer
    Journal of low temperature physics 10 (1973), S. 151-155 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The internal electric fields, which are induced by rotation and the earth's gravitational field, produce in turn inhomogeneous changes in the transition temperatures of superconductors. We show that such changes are within the power of observation in the case of rotation. This effect of inhomogeneity, traditionally neglected in the theory of rotating superconductors, provides a basic distinction between rotation which is a real quantity and the vector potential (of a homogeneous magnetic field) which is defined only within an arbitrary choice of a gauge.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00655247
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Asymptotic behavior of the vector potential and the order parameter for an isolated vortex (1973)
    Springer
    Journal of low temperature physics 11 (1973), S. 395-419 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Eilenberger's formulation of the theory of inhomogeneous superconductors is used to study an isolated vortex in a type-II superconductor. Exact integral expressions for the vector potential and the order parameter are obtained and used to determine the asymptotic behavior of these quantities. Far from the axis of the vortex, the vector potential approaches its BCS value in an approximately exponential fashion, the decay constant being equal to the quantity λ obtained by Eilenberger and Büttner in the local case, and equal to {2[(πk BT)2+△ BCS 2 ]1/2/vF+(1/τv F)}−1 in the case where nonlocal effects dominate. The order parameter also approaches its BCS value approximately exponentially, the decay constant being equal to the quantity ξ of Eilenberger and Büttner when λ〈2ξ, and equal to 1/2λ when λ〉2ξ.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00656560
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    On the method of Eilenberger for inhomogeneous superconductors (1972)
    Springer
    The European physical journal 253 (1972), S. 89-99 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The theory of Eilenberger, modified to take into account the effect of the surface, is applied to the problem of the penetration of a weak magnetic field into a semiinfinite superconductor, and the standard result for the vector potential is derived by linearizing the Eilenberger equations. The dominant term in the asymptotic behaviour is argued to be monotonic for both large and small values of the Ginzburg-Landau parameterk gl . ForT≠ 0, there is a small intermediate range of values ofk gl for which the dominant term is oscillatory, but these oscillations are not related to those found by Eilenberger and Büttner in the isolated vortex problem for smallK gl . From an analysis of these results, we conclude that the absence of the Eilenberger-Büttner oscillations in the field penetration problem cannot be used as an argument against their existence in other problems; in particular, a separate investigation is required for the isolated vortex problem.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01379764
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Attractive interaction between vortices in type-II superconductors at arbitrary temperatures (1973)
    Springer
    Journal of low temperature physics 12 (1973), S. 215-235 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We show that attractive interaction between vortices occurs when Re(Λ−1)〉ξ 0 −1 for type-II superconductors with local or nonlocal magnetic effects, where [Re(1/Λ)]−1 and ξ0 are, respectively, the decay length of the magnetic field and the order parameter at arbitrary temperatures. The interaction between vortices is attractive for all those type-II superconductors in which field reversal occurs, but field reversal is not a cause of attractive interaction. On the other hand, oscillatory behavior of magnetic fields contributes to attractive interaction. The critical values of the Ginzburg-Landau parameter, below which attractive interaction occurs, satisfy essentially the equation Re (Λ−1)=ξ 0 −1 .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00654737
    Library Location Call Number Volume/Issue/Year 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...