C Pop, P Barusco, R Vlad, A Queralto, K Gupta, B Almog, A Saraf, G Deutscher, X Granados, T Puig and X Obradors
Supercond. Sci. Technol. 35 054007, 2022
DOI: https://doi.org/10.1088/1361-6668/ac5be9
A. Stangl, A. Palau, G. Deutscher, X. Obradors & T. Puig
Scientific Reports 11, 8176 (2021).
DOI: https://doi.org/10.1038/s41598-021-87639-4
Natalia Chamarro, Jordi MArtínez-Esaín, Teresa Puig, Xavier Obradors, Josep Ros, Ramon Yañez and Susagna Ricart.
RSC Advances 10, 28872-28878 (2020)
DOI: 10.1039/d0ra03861j
Ziliang Li, Mariona Coll, Bernat Mundet, Anna Palau, Teresa Puig and Xavier Obradors,
Nanoscale Advances 2, 3384-3393 (2020).
DOI: 10.1039/D0NA00456A
Artur Romanov, Patrick Krkotić, Guilherme Telles, Joan O’Callaghan, Montse Pont, Francis Perez, Xavier Granados, Sergio Calatroni, Teresa Puig & Joffre Gutierrez.
Scientific Reports 10, 12325 (2020)
DOI: 10.1038/s41598-020-69004-z
Bohores Villarejo, Cornelia Pop, Sussagna Ricart, Bernat Mundet, Anna Palau, Pere Roura-Grabulosa, Jordi Farjas, Teresa Puig * and Xavier Obradors *.
J. Mater. Chem. C, 2020,8, 10266-10282
DOI: 10.1039/D0TC01846E
Silvia Rasi, Laia Soler, Júlia Jareño, Juri Banchewski , Roger Guzman, Cristian Mocuta, Martin Kreuzer, Susagna Ricart, Pere Roura-Grabulosa, J Jordi Farjas, Xavier Obradors and Teresa Puig
Journal of Physical Chemistry C 124, 15574-15584, 2020
DOI: 110.1021/acs.jpcc.0c03859
Teresa Puig, Patrick Krkotic, Artur Romanov, Joan O’Callaghan, Danilo Andrea Zanin, Holger Neupert, Pedro Costa Pinto, Pierre Demolon, Ângelo Rafael Granadeiro Costa, Mauro Taborelli, Francis Perez, Montse Pont, Joffre Gutierrez and Sergio Calatroni. Superconductor Science and Technology
Modulation of carrier concentration in strongly correlated oxides offers the unique opportunity to induce different phases in the same material, which dramatically change their physical properties, providing novel concepts in oxide electronic devices with engineered functionalities. This work reports on the electric manipulation of the superconducting to insulator phase transition in YBa2Cu3O7−δ thin films by electrochemical oxygen doping. Both normal state resistance and the superconducting critical temperature can be reversibly manipulated in confined active volumes of the film by gate-tunable oxygen diffusion. Vertical and lateral oxygen mobility may be finely modulated, at the micro- and nano-scale, by tuning the applied bias voltage and operating temperature thus providing the basis for the design of homogeneous and flexible transistor-like devices with loss-less superconducting drain–source channels. We analyze the experimental results in light of a theoretical model, which incorporates thermally activated and electrically driven volume oxygen diffusion.
F. Vallès, A. Palau, V. Rouco, B. Mundet, X. Obradors & T. Puig. Scientific Reports, volume 8, Article number: 5924(2018).
doi:10.1038/s41598-018-24392-1
Flux magnetic relaxation (flux creep) causes logarithmic decay on the critical currents in superconductors, especially at high temperatures, in detriment of applications for high temperature superconductors. In this work, we present a novel methodology to measure the flux creep rate in YBCO from electrical transport measurements instead of using traditional magnetic relaxation measurements. This new methodology provides a faster way to analyze creep and enables to expand the analysis to any orientation of the magnetic field. In particular, we have applied this analysis to study the creep rate in chemical solution deposited nanocomposites (YBCO with included nanoparticles), revealing that emerging stacking faults provide flux pinning and additionally reduce the flux magnetic relaxation.
