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 YBa2Cu3O7 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. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
