Peña-Roche, J. ; Genenko, Y. A. ; Badía-Majós, A. (2016)
Magnetic invisibility of the magnetically coated type-II superconductor in partially penetrated state.
In: Applied Physics Letters, 109 (9)
doi: 10.1063/1.4961672
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The magnetic behavior of a cylindrical paramagnet/superconductor heterostructure has been studied by numerical simulations. Relying on the variational statement of the critical state model, our results show that magnetic invisibility is compatible with the partial penetration regime in the superconductor. This result accomplishes previous analytic studies that proved a possible perfect undetectability for the full penetration of magnetic flux. For a given geometry, invisibility may be realized only at a certain magnitude of the applied field. Such value decreases with increasing permeability of the magnetic sheath and eventually collapses to zero. This establishes a condition for obtaining realizable invisibility that extends previous expectations relying either on the full penetration ansatz or on perfect diamagnetism.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Peña-Roche, J. ; Genenko, Y. A. ; Badía-Majós, A. |
| Art des Eintrags: | Bibliographie |
| Titel: | Magnetic invisibility of the magnetically coated type-II superconductor in partially penetrated state |
| Sprache: | Englisch |
| Publikationsjahr: | 29 August 2016 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Physics Letters |
| Jahrgang/Volume einer Zeitschrift: | 109 |
| (Heft-)Nummer: | 9 |
| DOI: | 10.1063/1.4961672 |
| Kurzbeschreibung (Abstract): | The magnetic behavior of a cylindrical paramagnet/superconductor heterostructure has been studied by numerical simulations. Relying on the variational statement of the critical state model, our results show that magnetic invisibility is compatible with the partial penetration regime in the superconductor. This result accomplishes previous analytic studies that proved a possible perfect undetectability for the full penetration of magnetic flux. For a given geometry, invisibility may be realized only at a certain magnitude of the applied field. Such value decreases with increasing permeability of the magnetic sheath and eventually collapses to zero. This establishes a condition for obtaining realizable invisibility that extends previous expectations relying either on the full penetration ansatz or on perfect diamagnetism. |
| Zusätzliche Informationen: | SFB 595 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 20 Sep 2016 10:45 |
| Letzte Änderung: | 20 Sep 2016 11:17 |
| PPN: | |
| Sponsoren: | Funding by Spanish MINECO and FEDER program (ENE2014-52105-R-9 project), DGA Grant No. T12, and partial support by the German DFG within the collaborative research center SFB 595 are gratefully acknowledged. |
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