We have realized highly epitaxial La0.7Ca0.3MnO3/YBa2CU3O7-x/La0.7Ca0.3MnO3 (LCMO/YBCO/LCMO) trilayers grown on SrTiO3 (001) oriented single crystal substrates by dc sputtering technique. Transport and magnetic measurements indicate that the superconducting critical temperature is strongly suppressed while the Curie temperature is higher than in a single LCMO film. These results are discussed in terms of interaction between superconductivity and magnetism and strain relaxation of the LCMO layer.
La0.7Ca0.3MnO3/YBa2Cu3O7-x/La0.7Ca0.3MnO3 heterostructures: Superconducting and magnetic properties
DE SANTIS, Adele;ZOLA, Danilo;PIANO, SAMANTA;BOBBA, Fabrizio;GIUBILEO, Filippo;LONGOBARDI, MARIA;POLICHETTI, Massimiliano;PACE, Sandro;CUCOLO, Anna Maria
2008
Abstract
We have realized highly epitaxial La0.7Ca0.3MnO3/YBa2CU3O7-x/La0.7Ca0.3MnO3 (LCMO/YBCO/LCMO) trilayers grown on SrTiO3 (001) oriented single crystal substrates by dc sputtering technique. Transport and magnetic measurements indicate that the superconducting critical temperature is strongly suppressed while the Curie temperature is higher than in a single LCMO film. These results are discussed in terms of interaction between superconductivity and magnetism and strain relaxation of the LCMO layer.File in questo prodotto:
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