Artificial pinning centers on the MgB2 surface: the influence on the vortex flow in magnetic field
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SURDU, Andrei, KOCH, Thomas, ZDRAVKOV, Vladimir, SOCROVIŞCIUC, Alexei, PREPELITSA, Andrei, OBERMAIER, Gunter, WIXFORTH, Achim, HAHN, Horst, SIDORENKO, Anatolie. Artificial pinning centers on the MgB2 surface: the influence on the vortex flow in magnetic field. In: Microelectronics and Computer Science: The 6th International Conference, Ed. 6, 1-3 octombrie 2009, Chisinau. Bălți, Republica Moldova: Universitatea de Stat „Alecu Russo" din Bălţi, 2009, Ediţia 6, pp. 197-199. ISBN 978-9975-45-122-2.
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Microelectronics and Computer Science
Ediţia 6, 2009
Conferința "Microelectronics and Computer Science"
6, Chisinau, Moldova, 1-3 octombrie 2009

Artificial pinning centers on the MgB2 surface: the influence on the vortex flow in magnetic field


Pag. 197-199

Surdu Andrei1, Koch Thomas2, Zdravkov Vladimir31, Socrovişciuc Alexei1, Prepelitsa Andrei1, Obermaier Gunter3, Wixforth Achim3, Hahn Horst4, Sidorenko Anatolie14
 
1 Institute of Electronic Engineering and Industrial Technologies, Academy of Sciences of Moldova,
2 Friedrich-Alexander University Erlangen-Nuremberg,
3 University of Augsburg,
4 Karlsruhe Institute of Technology, Institute of Nanotechnology
 
 
Disponibil în IBN: 12 iulie 2023


Rezumat

Superconducting properties of high-quality films of the first multiband superconductor, magnesium diboride, have been investigated. The dominating role of thermally activated flux flow for the low parts of the superconducting transition are responsible for the resistivity of MgB2 near the superconducting transition. A novel method to self organize nano particles with different hierarchical distance parameters on surfaces, was used to adsorb nano particles on MgB2 films. The influence of a homogenous network of Co nano particles, which were deposited on the surface of the MgB2 layers, on the resistive transition broadening in a magnetic field has been investigated.

Cuvinte-cheie
magnesium diborid, superconductivity, nanoparticles