Exploració per tema "High temperature superconductors"

Ara es mostren els items 21-29 de 29

    • Nonlinear RF spurious in a cylindrical cavity with superconducting endplates 

      Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Shaw, Timothy J.; O'Callaghan Castellà, Juan Manuel (ELSEVIER SCIENCE BV, 2002-08-31)
      Article
      Accés obert
      We have developed a method to calculate the distribution of fundamental and spurious fields in a metallic cylindrical cavity with superconducting endplates in which signals at two different frequencies are injected. The ...

    • Numerical optimization of hybrid dielectric/HTS resonators for surface impedance evaluation of HTS films 

      Collado Gómez, Juan Carlos; Gonzalo Riera, David; Rozan, Edouard; O'Callaghan Castellà, Juan Manuel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1999-06-30)
      Article
      Accés obert
      This work describes an alternative to the traditional dielectric resonator topology used for measuring surface impedance in High Temperature Superconducting (HTS) films. A gap is introduced above the dielectric so that ...

    • Obtención de monodominios de YBCO mediante el proceso TSMG 

      Padilla Sánchez, José Antonio (Universitat Politècnica de Catalunya, 2015-11)
      Projecte/Treball Final de Carrera
      Accés obert
      Los materiales cerámicos superconductores de alta temperatura (High Temperature Superconductors, HTS) son capaces de transportar densidades electrónicas (Jc) del orden de 106 A/cm2 y ser capaces de generar campos magnéticos ...

    • Paramagnetic meissner effect and strong time dependence at high fields in melt-textured high-Tc superconductors 

      Gouvêa, C.P.; Dias, Fabio Teixeira; Vieira, V.N.; da Silva, Douglas Langie; Schaf, Jacob; Wolff-Fabris, F.; Roa Rovira, Joan Josep (2013-05)
      Article
      Accés obert
      In this work we report on systematic field-cooled magnetization experiments in melt-textured YBa 2 Cu 3 O 7 − δ samples containing Y211 precipitates. Magnetic fields up to 14 T were applied either parallel or ...

    • Prediction of Nonlinear Distortion in HTS Filters for CDMA Communicaction Systems 

      Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Ferrús Ferré, Ramón Antonio; O'Callaghan Castellà, Juan Manuel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2003-06-30)
      Article
      Accés obert
      HTS materials are known to produce intermodulation and other nonlinear effects, and this may restrict their use in wireless communication systems. While significant efforts are being done to measure and characterize nonlinear ...

    • Preparación de sinterizados para deposición de capas superconductoras de alta temperatura 

      de Arriba Bodelón, Sara (Universitat Politècnica de Catalunya, 2013-11)
      Projecte/Treball Final de Carrera
      Accés restringit per decisió de l'autor
      100 años después del descubrimiento de la superconductividad por el físico holandés Heike Kamerlingh Onnes, los superconductores ya se usan en múltiples aplicaciones y se prevé que jueguen un papel fundamental en las ...

    • Reduced microwave losses YBa[sub 2]Cu[sub 3]O[sub 7 - delta] thin films on electro-optic LiNbO[sub 3] crystals 

      Fàbrega i Soler, Lluís; Rubí, R.; Fontcuberta, Josep; Sánchez, F.; Ferrater Martorell, Cesar; García-Cuenca Varona, Victoria; Varela, M.; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Menéndez Nadal, Óscar; O'Callaghan Castellà, Juan Manuel (AMER INST PHYSICS, 2002-10-31)
      Article
      Accés obert
      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 ...

    • Simulation of high temperature superconductors and experimental validation 

      Olm Serra, Marc; Badia, Santiago; Martín Huertas, Alberto Francisco (2019-04)
      Article
      Accés obert
      In this work, we present a parallel, fully-distributed finite element numerical framework to simulate the low-frequency electromagnetic behaviour of superconducting devices, which efficiently exploits high performance ...

    • Síntesi i caracterització de partícules nanomètriques de Y2BaCuO5 

      Masdeu Mayans, Francesc (Universitat Politècnica de Catalunya, 2006-12)
      Projecte/Treball Final de Carrera
      Accés obert