Title :
Structural, transport and magnetic characterization of Nd1-xSrxMnO3/YBa2Cu3O7 heterostructures
Author :
Przyslupski, Piotr ; Komissarov, Ivan ; Dynowska, Elzbeta ; Sawicki, Macej ; Wosik, Jarek ; Szewczyk, Andrzej
Author_Institution :
Inst. of Phys., Polish Acad. of Sci., Warsaw, Poland
fDate :
6/1/2003 12:00:00 AM
Abstract :
Heteroepitaxial growth of multilayer thin films of Nd1-xSrxMnO3/YBa2Cu3O7 (NSMO/YBCO) by high pressure sputtering for two doping level of NSMO system is reported. Multilayers containing NSMO oxide layer with lower Curie temperature (with lower doping level) show higher superconducting transition temperatures for fixed YBCO layer thickness. Such observations indicate that the proximity effect in NSMO/YBCO interfaces has a significant influence on the superconducting transition temperature of YBCO layers. Magnetization loops shows the coexistence of superconducting and ferromagnetic order at nm length scale.
Keywords :
Curie temperature; barium compounds; ferromagnetic materials; high-temperature superconductors; magnetic epitaxial layers; magnetic multilayers; magnetisation; neodymium compounds; proximity effect (superconductivity); sputtered coatings; strontium compounds; superconducting epitaxial layers; superconducting transition temperature; yttrium compounds; Curie temperature; NSMO/YBCO interface; Nd1-xSrxMnO3/YBa2Cu3O7 heterostructure; NdSrMnO3-YBa2Cu3O7; doping level; ferromagnetic order; heteroepitaxial growth; high-pressure sputtering; magnetic characteristics; magnetization; multilayer thin film; proximity effect; structural characteristics; superconducting transition temperature; transport characteristics; Doping; Magnetic multilayers; Magnetization; Neodymium; Proximity effect; Sputtering; Strontium; Superconducting magnets; Superconducting transition temperature; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.812037
