Crossover between superconductivity and magnetism in SrRuO3 mesocrystal embedded YBa2Cu3O7-: X heterostructures

Vandrangi Suresh, Jheng Cyuan Lin, Heng Jui Liu, Zaoli Zhang, Ping Chih Chiang, Yu Ching Hsun, Yi Chun Chen, Jiunn Yuan Lin, Ying Hao Chu

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The competition between superconductivity and ferromagnetism poses great challenges and has attracted renewed interest for applications in novel spintronic devices. In order to emphasize their interactions, we fabricated a heterostructure composed of superconducting YBa2Cu3O7-δ (YBCO) film embedded with itinerant ferromagnetic SrRuO3 (SRO) mesocrystals. Starting from a doping concentration of 10 vol% of SRO mesocrystal in a YBCO matrix, corresponding to the density of SRO nanocrystals ∼5 × 109 cm-2, which exhibits the typical characteristic of a metal-superconductor transition, and then increasing the magnetic interactions as a function of SRO embedment, the electronic correlation and the interplay between superconductivity and magnetism throughout the temperature regime were investigated. A metal-insulator transition in the normal state of YBCO and a crossover between superconductivity and magnetism at low temperatures were found upon increasing the density of nano-size SRO crystallites in the YBCO matrix as a consequence of competing interactions between these two ordered phases.

Original languageEnglish
Pages (from-to)18454-18460
Number of pages7
Issue number43
Publication statusPublished - 2016 Nov 21

All Science Journal Classification (ASJC) codes

  • General Materials Science


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