Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (1/1 displayed)

  • 2006The characteristics of trapped magnetic flux inside bulk HTS in the Mixed-mu levitation system14citations

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Ghodsi, Mojtaba
1 / 9 shared
Ueno, T.
1 / 1 shared
Teshima, H.
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Hirano, H.
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2006

Co-Authors (by relevance)

  • Ghodsi, Mojtaba
  • Ueno, T.
  • Teshima, H.
  • Hirano, H.
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article

The characteristics of trapped magnetic flux inside bulk HTS in the Mixed-mu levitation system

  • Ghodsi, Mojtaba
  • Ueno, T.
  • Teshima, H.
  • Hirano, H.
  • Higuchi, T.
Abstract

In this paper we propose a new experimental method to investigate the principle of ‘Mixed-l’ levitation systems. To confirm our claim, we measured the attractive force and the variation of flux passing through both, the HTS sample and the face surface of iron yoke, when the yoke is approached/retreated to the surface of field-cooled HTS sample. It is revealed that when the diameter of the yoke is less than the diameter of the HTS, in the small gap by reducing the gap, the flux which passes through the face surface of the yoke and consequently the attractive force will decrease. Therefore, stable levitation is achievable. However, when the diameter of yoke is equal to the diameter of the HTS, the magnetic flux will not decrease for a reducing gap and stable levitation is unfeasible. Briefly, stable levitation is achievable when the yoke diameter is less than the HTS’s diameter. Additionally, as the yoke is approached to the HTS the flux variation of the HTS in 77 K is negligible compare to the flux variation of the HTS in the room temperature. Therefore, in superconductivity state the pinned fluxes in the HTS samples remain approximately constant and the HTS acts as a ‘magnetic isolator’. This specification can be used to simulate the behavior of field-cooled HTS by the FEM software.

Topics
  • impedance spectroscopy
  • surface
  • laser emission spectroscopy
  • iron
  • superconductivity
  • superconductivity