Fabrication and properties of YBa/sub 2/Cu/sub 3/O/sub 7//RE/sub 1-x/MnO/sub 3-y/ multilayers

Fabrication and properties of YBa/sub 2/Cu/sub 3/O/sub 7//RE/sub 1-x/MnO/sub 3-y/ multilayers

The high pressure d.c. sputtering method has been used to fabricate (YBa/sub 2/Cu/sub 3/O/sub 7//Nd/sub 0.67/Sr/sub 0.33/MnO/sub 3-y/)//sub n/ [(YBCO/NSMO)/sub n/] superlattices. X-ray analyses show c-axis epitaxial growth on LaAlO/sub 3/ (100) substrates. Nd/sub 0.67/Sr/sub 0.33/MnO/sub 3-y/ films...

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Veröffentlicht in:IEEE transactions on applied superconductivity 1997-06, Vol.7 (2), p.2192-2195
Hauptverfasser: Przyslupski, P., Kolesnik, S., Dynowska, E., Skoskiewicz, T., Sawicki, M.
Format: Artikel
Sprache:eng
Schlagworte:
Fabrication
Magnetic films
Magnetic superlattices
Neodymium
Sputtering
Strontium
Substrates
Superconducting films
Superconductivity
Yttrium barium copper oxide
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Zusammenfassung:The high pressure d.c. sputtering method has been used to fabricate (YBa/sub 2/Cu/sub 3/O/sub 7//Nd/sub 0.67/Sr/sub 0.33/MnO/sub 3-y/)//sub n/ [(YBCO/NSMO)/sub n/] superlattices. X-ray analyses show c-axis epitaxial growth on LaAlO/sub 3/ (100) substrates. Nd/sub 0.67/Sr/sub 0.33/MnO/sub 3-y/ films are strained due to some difference in lattice parameters between substrate and YBCO sublayers. Magnetization measurements done on single NSMO films show ferromagnetic order below 200 K. Magnetic moment measured for the superlattices below superconducting transition show ferromagnetic order and superconductivity. Such a behavior indicates on the co-existence of superconductivity and ferromagnetism in the total volume of heterostructures, where superconductivity is related to the YBCO sublayer and ferromagnetism to the NSMO sublayer.
ISSN:1051-8223
1558-2515
DOI:10.1109/77.621029