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

Author

Przyslupski, P. ; Kolesnik, S. ; Dynowska, E. ; Skoskiewicz, T. ; Sawicki, M.

Author_Institution

Inst. of Phys., Polish Acad. of Sci., Warsaw, Poland

Volume

7

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

2192

Lastpage

2195

Abstract

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.

Keywords

X-ray diffraction; barium compounds; ferromagnetic materials; high-temperature superconductors; lattice constants; magnetic thin films; rare earth compounds; sputtered coatings; superconducting superlattices; superconducting thin films; yttrium compounds; 200 K; X-ray analyses; YBa/sub 2/Cu/sub 3/O/sub 7//RE/sub 1-x/MnO/sub 3-y/ multilayers; c-axis epitaxial growth; high temperature superconductor; lattice parameters; magnetic moment; magnetization; sputtering; Fabrication; Magnetic films; Magnetic superlattices; Neodymium; Sputtering; Strontium; Substrates; Superconducting films; Superconductivity; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.621029

Filename

621029