在Cu1/2Tl1/2Ba2Ca2Cu3O10-δ中增强超导性,其中包括石墨烯:一项全面的研究
Syed Hamza Safeer1, Nizar Saeed1, Abida Saleem2
1Materials Science Laboratory, Department of Physics, Quaid I Azam University, Islamabad 45320, Pakistan.
Langmuir : the ACS journal of surfaces and colloids
|February 5, 2025
概括
石墨烯量子点增强了CuTl-1223超导体中的超导特性. 本研究详细介绍了GQD如何提高临界温度和电流密度,为先进的超导体开发提供了洞察力.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 超导电性 超导电性 超导电性
背景情况:
- 超导体Cu$_{1/2}$Tl$_{1/2}$Ba$_2$Ca$_2$Cu$_3$O$_{10-δ}$ (CuTl-1223) 是一种复杂的超导体,具有潜在的应用.
- 提高像临界温度和临界电流密度这样的超导特性对于技术进步至关重要.
研究的目的:
- 研究石墨烯量子点 (GQD) 对CuTl-1223.3的超导特性的影响.
- 了解GQDs影响超导体晶体结构和电子特性的机制.
主要方法:
- 固态反应方法用于合成用GQD合的CuTl-1223样本.
- 使用X射线衍射,温度依赖电阻,SEM,FTIR和过度导电性分析进行表征.
主要成果:
- 结合GQD增加了c轴长度和单元细胞体积,保持了正角形结构.
- 零电阻临界温度和临界电流密度 (J$_{c}$(0) 随着GQD含量增加.
- FTIR分析显示了音声模式的硬化,SEM证实了碳的合并,作为结中心.
结论:
- GQDs有效地增强了CuTl-1223.3的超导特性.
- GQD兴奋剂影响晶体结构,声子动力学,并引入固定中心,从而提高性能.
- 这些发现为未来的材料设计提供了对GQD-超导体相互作用的更深入的理解.
相关概念视频
Types Of Superconductors
927
A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
927
Superconductor
1.1K
A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
1.1K


