High‐Pressure Growth and Characterization of Seven‐Layered CuBa<sub>2</sub>Ca<sub>6</sub>Cu<sub>7</sub>O<sub>17±</sub><i><sub>δ</sub></i> Single Crystals
Abstract In cuprates, the superconducting transition temperature ( T c ) is closely related to the number n of CuO 2 planes per unit cell. The studies on multi‐layered cuprates offer insights into the physical properties and pairing mechanisms of superconductivity. However, the synthesis and stability of ultra‐multilayered cuprates pose significant challenges. Here, a newly discovered seven‐layered cuprate CuBa 2 Ca 6 Cu 7 O 17± δ grown under high pressure is reported. Magnetization and transport measurements confirm bulk superconductivity with T c of ≈85 K. The magnetization hysteresis loops, critical current density ( J c ), and irreversibility fields of CuBa 2 Ca 6 Cu 7 O 17± δ are also investigated. The novel compound CuBa 2 Ca 6 Cu 7 O 17± δ provides an ideal platform for studying the physics of multi‐layered cuprates.
Authors
- Dongsheng Song (ORCID: https://orcid.org/0000-0003-1975-7671)
- Bo Zheng (ORCID: https://orcid.org/0000-0001-9172-9478)
- Xue Ming (ORCID: https://orcid.org/0000-0001-8120-5208)
- Boyu Li (ORCID: https://orcid.org/0009-0006-2193-0938)
- Binghui Ge
- Yuecong Liu
- Chengping He (ORCID: https://orcid.org/0000-0002-1460-2163)
- Yuhang Zhang (ORCID: https://orcid.org/0000-0001-7129-7241)
- Tianyi Li (ORCID: https://orcid.org/0000-0002-6234-6096)
- Hai‐Hu Wen (ORCID: https://orcid.org/0000-0003-0093-1625)
- Xiyu Zhu (ORCID: https://orcid.org/0000-0001-6721-3746)
Institutions
- Shandong University of Technology (CN)
- Anhui University (CN)
- Collaborative Innovation Center of Advanced Microstructures (CN)
- Nanjing University (CN)
Publication Details
- Journal
- Advanced Functional Materials
- Published
- 2024-10-26
- DOI
- https://doi.org/10.1002/adfm.202414633
- Primary Topic
- Physics of Superconductivity and Magnetism
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- Taishan Scholar Project of Shandong Province
- National Key Research and Development Program of China
- Fundamental Research Funds for the Central Universities