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oai:docta.ucm.es:20.500.14352/1012062024-12-10T01:06:21Zcom_20.500.14352_14col_20.500.14352_15

Particle size effect on the superconducting properties of YBa2Cu3O7-x particles Blanco-Gutiérrez, Verónica Torralvo Fernández, María Josefa Alario Franco, Miguel Ángel 54 Ciencias 23 Química YBCO samples with different microstructures were prepared after the thermal treatment of a precursor previously obtained by autocombustion. A drastic influence of the particle size on the magnetic behavior of the samples was observed. Thus, particles smaller than 110 nm do not exhibit superconducting pro-perties and for those ranging around 200 nm the diamagnetic signal characteristic of the superconduc-tivity at low temperature disappears in a large applied magnetic field. Particles larger than 300 nm do not exhibit the particle size effect. Accompanying such a phenomenon, an increase of the superconducting critical temperature is observed with the augmentation of the particle size, the lowest value being 18 K which corresponds to 110 nm particles. Red Eléctrica de España Depto. de Química Inorgánica Fac. de Ciencias Químicas TRUE pub 2024-02-12T10:31:46Z 2024-02-12T10:31:46Z 2017 journal article VoR https://hdl.handle.net/20.500.14352/101206 XXXX-XXXX 10.1039/c7dt01974b eng Blanco-Gutiérrez, V., et al. «Particle Size Effect on the Superconducting Properties of YBa 2 Cu 3 O 7−x Particles». Dalton Transactions, vol. 46, n.o 35, 2017, pp. 11698-703. https://doi.org/10.1039/C7DT01974B. restricted access application/pdf The Royal Society of Chemistry