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Journal Article

YBa2Cu3O7/La2/3Ca1/3MnO3 superlattices showing simultaneously ferromagnetic and superconducting order

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Habermeier,  H.-U.
Scientific Facility Thin Film Technology (Gennady Logvenov), Max Planck Institute for Solid State Research, Max Planck Society;
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;
Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society;

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Cristiani,  G.
Scientific Facility Thin Film Technology (Gennady Logvenov), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Habermeier, H.-U., & Cristiani, G. (2004). YBa2Cu3O7/La2/3Ca1/3MnO3 superlattices showing simultaneously ferromagnetic and superconducting order. physica status solidi (a), 201(7), 1436-1440.


Cite as: https://hdl.handle.net/21.11116/0000-000E-F745-E
Abstract
All oxide thin film heterostructures and superlattices composed of
materials of different functionalities such as ferromagnetic [FM],
superconducting [SC], piezoelectric or ferroelectric open a new wide
field of device oriented fundamental research by exploring the
interaction of different long range ordered ground states. To
demonstrate these principles we have prepared YBaCu3O7 based
superlattices [SL's] with La2/3Ca1/3MnO3 as ferromagnetic [FM] part by
pulsed laser deposition. The films are characterized with respect to
their structual, magnetic and transport properties. Whereas simple
heterostructures [single layer La2/3Ca1/3MnO3 and single layer
YBa2Cu3O7 50 nm thickness each] reproduce the intrinsic properties of
the constituent material rather well [Curie temperature 250 K
superconducting transition at T = 75 K] there are some novel effects
emerging due to the coupling between the layers observed in the
superlattices. The experimental findings are discussed within the frame
of a model based on FM interlayer coupling and superconducting
proximity effect. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.