Reduced microwave losses of YBa2Cu3O7_thin films on electro-optic LiNbO3 crystals

We report on the growth of epitaxial YBa2Cu3O7 thin films on X-cut LiNbO3 single crystals. The use of double CeO2/YSZ buffer layers allows a single in-plane orientation of YBa2Cu3O7, and results in superior superconducting properties. In particular, surface resistance Rs values of 1.4 m¿ have been m...

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Detalles Bibliográficos
Autores: Fàbrega, L., Rubí, R., Fontcuberta i Griñó, Josep, Sánchez Barrera, Florencio, Ferrater Martorell, Cèsar, García-Cuenca Varona, María Victoria, Varela Fernández, Manuel, 1956-, Collado Gómez, Juan Carlos, Mateu Mateu, Jordi, Menéndez Nadal, Óscar, O'Callaghan Castellà, Joan
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2002
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/24801
Acceso en línea:https://hdl.handle.net/2445/24801
Access Level:acceso abierto
Palabra clave:Microones
Cristalls
Superconductivitat
Pel·lícules fines
Fotònica
Microwaves
Crystals
Superconductivity
Thin films
Photonics
Descripción
Sumario:We report on the growth of epitaxial YBa2Cu3O7 thin films on X-cut LiNbO3 single crystals. The use of double CeO2/YSZ buffer layers allows a single in-plane orientation of YBa2Cu3O7, and results in superior superconducting properties. In particular, surface resistance Rs values of 1.4 m¿ have been measured at 8 GHz and 65 K. The attainment of such low values of Rs constitutes a key step toward the incorporation of high Tc materials as electrodes in photonic and acoustic devices.