Zaitsev, A. V. ; Ovsyannikov, G. A. ; Constantinian, K. Y. ; Kislinskiĭ, Yu. V. ; Shadrin, A. V. ; Borisenko, I. V. ; Komissinskiy, P. V. (2010)
Superconducting current in hybrid structures with an antiferromagnetic interlayer.
In: Journal of Experimental and Theoretical Physics, 110 (2)
doi: 10.1134/S1063776110020172
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
It is shown experimentally that the superconducting current density in Nb/Au/Ca1 − x Sr x CuO2/YBa2Cu3O7 − δ hybrid superconducting heterostructures with a Ca1 − x Sr x CuO2 anti-ferromagnetic (AF) cuprate interlayer is anomalously high for interlayer thicknesses d M = 10–50 nm and the characteristic damping length for superconducting correlations is on the order of 10 nm. The experimental results are explained on the basis of theoretical analysis of a junction of two superconductors (S′ and S) connected by a magnetic multilayer with the AF ordering of magnetization in the layers. It is shown that with such a magnetization ordering, anomalous proximity effect determined by the singlet component of the condensate wavefunction may take place. As a result, the critical currents in S′/I/AF/S and S′/I/N/S structures (I denotes an insulator, and N, the normal metal) may coincide in order of magnitude even when the thickness of the AF interlayer considerably exceeds the decay length of the condensate wavefunction in ferromagnetic layers.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2010 |
| Autor(en): | Zaitsev, A. V. ; Ovsyannikov, G. A. ; Constantinian, K. Y. ; Kislinskiĭ, Yu. V. ; Shadrin, A. V. ; Borisenko, I. V. ; Komissinskiy, P. V. |
| Art des Eintrags: | Bibliographie |
| Titel: | Superconducting current in hybrid structures with an antiferromagnetic interlayer |
| Sprache: | Englisch |
| Publikationsjahr: | 2010 |
| Verlag: | Springer |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Experimental and Theoretical Physics |
| Jahrgang/Volume einer Zeitschrift: | 110 |
| (Heft-)Nummer: | 2 |
| DOI: | 10.1134/S1063776110020172 |
| Kurzbeschreibung (Abstract): | It is shown experimentally that the superconducting current density in Nb/Au/Ca1 − x Sr x CuO2/YBa2Cu3O7 − δ hybrid superconducting heterostructures with a Ca1 − x Sr x CuO2 anti-ferromagnetic (AF) cuprate interlayer is anomalously high for interlayer thicknesses d M = 10–50 nm and the characteristic damping length for superconducting correlations is on the order of 10 nm. The experimental results are explained on the basis of theoretical analysis of a junction of two superconductors (S′ and S) connected by a magnetic multilayer with the AF ordering of magnetization in the layers. It is shown that with such a magnetization ordering, anomalous proximity effect determined by the singlet component of the condensate wavefunction may take place. As a result, the critical currents in S′/I/AF/S and S′/I/N/S structures (I denotes an insulator, and N, the normal metal) may coincide in order of magnitude even when the thickness of the AF interlayer considerably exceeds the decay length of the condensate wavefunction in ferromagnetic layers. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Dünne Schichten 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 30 Mär 2012 08:51 |
| Letzte Änderung: | 05 Mär 2013 10:00 |
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