journal article·2025-01Open access

High‐Pressure Growth and Characterization of Seven‐Layered CuBa2Ca6Cu7O17±δ Single Crystals

Xue Ming, Boyu Li, Bo Zheng, Yuecong Liu, Yuhang Zhang, Tian‐Yi Li, Chengping He, Xiyu Zhu, Dongsheng Song, Binghui Ge, Hai‐Hu Wen

Advanced Functional Materials· Volume 35· Issue 5

Abstract

Abstract In cuprates, the superconducting transition temperature (Tc) is closely related to the number n of CuO2 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 CuBa2Ca6Cu7O17±δ grown under high pressure is reported. Magnetization and transport measurements confirm bulk superconductivity with Tc of ≈85 K. The magnetization hysteresis loops, critical current density (Jc), and irreversibility fields of CuBa2Ca6Cu7O17±δ are also investigated. The novel compound CuBa2Ca6Cu7O17±δ provides an ideal platform for studying the physics of multi‐layered cuprates.
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Research context

OpenAlex topics: Physics of Superconductivity and Magnetism · Copper-based nanomaterials and applications · ZnO doping and properties

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

Affiliations

Center for Superconducting Physics and Materials National Laboratory of Solid State Microstructures and Department of Physics Nanjing University Nanjing 210093 China

School of Physics and Optoelectronic Engineering Shandong University of Technology Zibo 255000 China

Information Materials and Intelligent Sensing Laboratory of Anhui Province Leibniz International Joint Research Center of Materials Sciences of Anhui Province Institutes of Physical Science and Information Technology Anhui University Hefei 230601 China

Funding

National Basic Research Program of China · National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities · Chinese Academy of Sciences · Taishan Scholar Project of Shandong Province

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