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journal article·2019-12Open access

Anisotropic superconductivity induced by periodic multiferroic domain patterns

Yen-Lin Huang, Bo-Chao Huang, Yan-Ting Wang, Fei Xue, Jheng-Cyuan Lin, Heng-Jui Liu, Rong Huang, Jiunn-Yuan Lin, Chia-Seng Chang, Long-Qing Chen, Ya-Ping Chiu, Ying-Hao Chu

NPG Asia Materials· Volume 11· Issue 1
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Abstract

Abstract The competition between order parameters, such as ferroelectricity, ferromagnetism, and superconductivity, is one of the most fascinating topics in condensed matter physics. Here, we report intriguing anisotropic superconductivity in YBa2Cu3O7 − x films induced by a multiferroic, BiFeO3, with periodic domain patterns. The anisotropic superconductivity was investigated by transport measurements and supported by phase-field simulations, and then the detailed local electronic structures were revealed by cross-sectional scanning tunneling microscopy. We found that the oxygen redistribution in YBa2Cu3O7 − x modulated by the ferroelectric polarization in BiFeO3 was the key mechanism driving this anisotropic superconductivity. The presented heteroarchitecture of a high-temperature superconductor and a domain-engineered multiferroic provides a new approach to tune superconductivity and offers potential advantages for the design of future multifunctional devices.
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Research context

Electronic materials

OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Physics of Superconductivity and Magnetism

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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