Superconducting materials for emerging technologies

Ultra-high critical current densities of superconducting YBa2Cu3O7-δ thin films in the overdoped state

Título : Ultra-high critical current densities of superconducting YBa2Cu3O7-δ thin films in the overdoped state
Autores: A. Stangl, A. Palau, G. Deutscher, X. Obradors & T. Puig
Citation: Scientific Reports 11, 8176 (2021).
DOI: https://doi.org/10.1038/s41598-021-87639-4
PlumX: Ultra-high critical current densities of superconducting YBa2Cu3O7-δ thin films in the overdoped state
The functional properties of cuprates are strongly determined by the doping state and carrier density. We present an oxygen doping study of YBa2Cu3O7-δ (YBCO) thin films from underdoped to overdoped state, correlating the measured charge carrier density, nHnH, the hole doping, p, and the critical current density, Jc. Our results show experimental demonstration of strong increase of Jc with nH, up to Quantum Critical Point (QCP), due to an increase of the superconducting condensation energy.

Superconductors

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Combinatorial Screening of Cuprate Superconductors by Drop-On-Demand Inkjet Printing

Autores: Albert Queraltó*, Juri Banchewski, Adrià Pacheco, Kapil Gupta, Lavinia Saltarelli, Diana Garcia, Núria Alcalde, Cristian Mocuta, Susagna Ricart, Flavio Pino, Xavier Obradors, and Teresa Puig*
Citation:
ACS Appl. Mater. Interfaces 2021, 13, 7, 9101–9112
Publication Date:February 12, 2021
DOI: https://doi.org/10.1021/acsami.0c18014
PlumX: Combinatorial Screening of Cuprate Superconductors by Drop-On-Demand Inkjet Printing
Combinatorial and high-throughput experimentation (HTE) is achieving more relevance in material design, representing a turning point in the process of accelerated discovery, development, and optimization of materials based on data-driven approaches. The versatility of drop-on-demand inkjet printing (IJP) allows performing combinatorial studies through fabrication of compositionally graded materials with high spatial precision, here by mixing superconducting REBCO precursor solutions with different rare earth (RE) elements.

Superconductors

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Pyrolysis study of solution-derived superconducting YBa2Cu3O7 films: disentangling the physico-chemical transformations

Chemical solution deposition (CSD) of epitaxial YBa2Cu3O7 (YBCO) films is a high throughput, cost-effective approach to grow high critical current superconducting conductors for power applications. Achieving high critical currents requires to grow epitaxial films with large thicknesses and this is still an open issue in CSD.

Superconductors

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