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Pàgina inicial > Articles > Articles publicats > Kinetic Control of Ultrafast Transient Liquid Assisted Growth of Solution-Derived YBaCuO-x Superconducting Films |
Data: | 2022 |
Resum: | Transient liquid assisted growth (TLAG) is an ultrafast non-equilibrium growth process mainly governed by kinetic parameters, which are only accessible through fast in situ characterizations. In situ synchrotron X-ray diffraction (XRD) analysis and in situ electrical resistivity measurements are used to derive kinetic diagrams of YBaCuO (YBCO) superconducting films prepared via TLAG and to reveal the unique peculiarities of the process. In particular, diagrams for the phase evolution and the YBCO growth rates have been built for the two TLAG routes. It is shown that TLAG transient liquids can be obtained upon the melting of two barium cuprate phases (and not just one), differentiated by their copper oxidation state. This knowledge serves as a guide to determine the processing conditions to reach high performance films at high growth rates. With proper control of these kinetic parameters, films with critical current densities of 2-2. 6 MA cm −2 at 77 K and growth rates between 100-2000 nm s −1 are reached. These growth rates are 1. 5-3 orders of magnitude higher than those of conventional methods. Transient liquid assisted growth (TLAG) is an ultrafast, non-equilibrium growth process governed by kinetic parameters, accessible only through fast in situ characterizations. These methods are used to build kinetic diagrams of phase evolution and growth rate which are unique guides to reach the conditions for ultrafast growth (>1000 nm s − 1) and high-performance superconducting films by combining kinetic and thermodynamic parameters. |
Ajuts: | European Commission 669504 European Commission 874964 Agencia Estatal de Investigación PID2021-127297OB-C21 Agencia Estatal de Investigación PID2021-127297OB-C22 Ministerio de Economía y Competitividad SEV-2015-0496 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1519 Agencia Estatal de Investigación CEX2019-000917-S Agencia Estatal de Investigación RTI2018-095853-B-C21 Agencia Estatal de Investigación RTI2018-095853-B-C22 Agencia Estatal de Investigación PRE2019-090621 Agencia Estatal de Investigación PRE2018-084537 Agencia Estatal de Investigación PRE2020-091817 Ministerio de Ciencia, Innovación y Universidades IJC2018-035034-I |
Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió publicada |
Matèria: | Chemical solution deposition ; Growth from transient liquid ; Kinetic phase diagrams ; Superconducting YBaCuO |
Publicat a: | Advanced science, Vol. 9, Num. 32 (September 2022) , art. 2203834, ISSN 2198-3844 |
12 p, 3.4 MB |