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
    Phase transitions in a superconducting thin film with a single circular hole
    Amsterdam : Elsevier
    Physics Letters A 195 (1994), S. 373-379 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(94)90045-0
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Nucleation of superconductivity in a thin film with an array of holes
    Amsterdam : Elsevier
    Physica C: Superconductivity and its applications 235-240 (1994), S. 3327-3328 
    Details
    ISSN: 0921-4534
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0921-4534(94)91190-8
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Quantum suppression of superconductivity in ultrathin nanowires (2000)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 404 (2000), S. 971-974 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It is of fundamental importance to establish whether there is a limit to how thin a superconducting wire can be, while retaining its superconducting character—and if there is a limit, to determine what sets it. This issue may also be of practical importance in defining the limit to ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35010060
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Self-assembled chains of graphitized carbon nanoparticles (1999)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 74 (1999), S. 2699-2701 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report a technique which allows self-assembly of conducting nanoparticles into long continuous chains. Transport properties of such chains have been studied at low temperatures. At low bias voltages, the charges are pinned and the chain resistance is exponentially high. Above a certain threshold VT, the system enters a conducting state. The threshold voltage is much bigger than the Coulomb gap voltage for a single particle and decreases linearly with increasing temperature. A sharp threshold was observed up to about 77 K. Such chains may be used as switchable links in Coulomb charge memories. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.123941
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Electrostatic trapping of single conducting nanoparticles between nanoelectrodes (1997)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 71 (1997), S. 1273-1275 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: For molecular electronics, one needs the ability to electrically address a single conducting molecule. We report on the fabrication of stable Pt electrodes with a spacing down to 4 nm and demonstrate a new deposition technique, i.e., electrostatic trapping, which can be used to bridge the electrodes in a controlled way with a single conducting nanoparticle such as a conjugated or metal–cluster molecule. In electrostatic trapping, nanoparticles are polarized by an applied electric field and are attracted to the gap between the electrodes where the field is maximum. The feasibility of electrostatic trapping is demonstrated for Pd colloids. Transport measurements on a single Pd nanoparticle show single electron tunneling coexisting with tunnel-barrier suppression.© 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.119871
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Role of edge superconducting states in trapping of multi-quanta vortices by microholes. Application of the bitter decoration technique (1996)
    Springer
    Journal of low temperature physics 102 (1996), S. 73-94 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Bitter decoration technique is used to study the trapping of single and multiple quanta vortices by a lattice of circular microholes. By keeping a thin superconducting layer (the bottom) inside each hole we are able to visualise the trapped vortices. From this we determine, for the first time, the filling factor FF, i.e. the number of vortices captured inside a hole. In all cases the sample is cooled at a constant field before making the decoration. Two qualitatively different states of the vortex crystal are observed: (i) In case when the interhole distance is much larger than the coherence length, the filling factor averaged over many identical holes (〈(FF〉)) is a stepwise function of the magnetic flux (of the external field) through the hole, because each hole captures the same number of vortices. The density of fluxoids inside the openings is higher than in the uniform film, but much lower than it should be in the state of equilibrium. We claim that the number of trapped vortices is determined by the edge superconducting states which appear around each hole at the modified third critical fieldH c3 * 〉H c2 . BelowH c2 such states produce a surface barrier of a new type. This barrier for the vortex entrance and exit is due to the strong increase of the order parameter near the hole edge. It keeps constant the number of captured vortices during the cooling at a fixed field, (ii) An increase of the hole density or of the hole radius initiates a sharp redistribution of fluxoids: all of them drop inside holes. This first order transition leads to a localization of all vortices and consequently to a qualitative change of the transport properties (TAFF in our case). In the resulting new state the filling factor is not any more the same for neighbouring holes and its averaged value is equal to the frustration of the hole network.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00755110
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Nucleation of superconductivity in a thin film with a lattice of circular holes (1995)
    Springer
    Journal of low temperature physics 98 (1995), S. 251-268 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We investigate experimentally the nucleation of superconductivity in a thin Aluminium film with a square lattice of microholes in a uniform perpendicular magnetic field H. It is shown that in a non-zero magnetic field, this system has an elevated critical temperature T c * (H) in comparison to the reference film without holes. This effect can be considered as a generalisation of the well known surface superconductivity effect for the case of a finite radius of the surface and a multiply connected geometry of the sample. Quantization of the fluxoid around each hole leads to oscillations in the T c * (H) dependence with a period approximately corresponding to one flux quantum through a hole. Also another type of oscillation with a smaller period which is equal to one flux quantum per unit cell was observed. We discuss the second type of oscillation in terms of an interaction between the holes. We believe that our results can be useful in the analysis of high-Tc superconductors with columnar defects because, as it is shown here, a comparison of the Tc(H) dependence before and after irradiation can give some special information on the properties of the amorphous tracks produced by highenergy ions. While many experimental parameters are different in our system and in HTSC we present arguments why this analogy should be correct.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00753616
    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...