RS Fellow - EPSRC grant (2014): Exploring high temperature superconductivity in novel layered materials.

RS 研究员 - EPSRC 资助（2014 年）：探索新型层状材料的高温超导性。

• 批准号: EP/N005082/1
• 负责人: RAHUL RAVEENDRAN NAIR
• 金额: $ 18.78万
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FN005082%2F1
• 关键词: RS; Fellow; EPSRC; grant; 2014

Two dimensional (2D) material research has emerged with the isolation of the first 2D material named graphene, in 2004. Graphene is a single atom thick sheet of carbon atoms arranged in a honey comb lattice. It is considered as a potential material for different wide-ranging applications because of its exceptional properties. It is the thinnest and strongest material known and it is transparent and conducts electricity even better than copper. It is completely impermeable to gases and liquids and extremely flexible. For the last few years, the scientific community was heavily looking into the fabrication of other one atom thick planes from layered materials, including insulators, semiconductors and superconductors. The availability of these new 2D materials with diverse properties opens up many possible opportunities in materials design and engineering. For example, by stacking different 2D atomic sheets on top of each other in a desired sequence will result in the formation of new three dimensional materials with novel properties. Recently, the Manchester group demonstrated this concept by combining graphene with semiconducting molybdenum disulfide to fabricate a new type of vertical transistors.Motivated by this initial result, my particular interest is to fabricate novel layered materials with structures similar to that of high temperature layered superconductors. Superconductivity is a phenomenon of zero electrical resistance and complete expulsion of magnetic field. In high temperature superconductors (HTS), superconductivity arises from the alternating layers of conducting and insulating layers of atoms, which form the HTS crystal. With the availability of different 2D crystals, I envisage to design materials with a similar structure by stacking different 2D crystals on top of each other. The search for HTS is an ambitious project, but if I am successful in making HTS based on these novel materials, this could spark massive interest.

随着2004年第一种名为石墨烯的二维材料的分离，二维(2D)材料研究应运而生。石墨烯是以蜂窝状晶格排列的碳原子组成的单原子厚片。由于其特殊的性能，它被认为是一种潜在的不同广泛应用的材料。它是已知的最薄、最坚固的材料，它是透明的，导电性甚至比铜更好。它对气体和液体完全不透水，而且极具弹性。在过去的几年里，科学界一直在大力研究用包括绝缘体、半导体和超导体在内的层状材料制造其他单原子厚的平面。这些具有不同性质的新型2D材料的出现，为材料设计和工程提供了许多可能的机会。例如，通过以所需的顺序将不同的2D原子片堆叠在彼此的顶部，将导致形成具有新特性的新的三维材料。最近，曼彻斯特小组展示了这一概念，将石墨烯与半导体二硫化钼相结合，制备了一种新型的垂直晶体管。受这一初步结果的启发，我特别感兴趣的是制造结构类似于高温层状超导体的新型层状材料。超导是一种零电阻、完全脱离磁场的现象。在高温超导体(HTS)中，超导电性是由形成高温超导体晶体的原子的导电层和绝缘层交替产生的。随着不同的2D晶体的出现，我设想通过将不同的2D晶体堆叠在一起来设计具有相似结构的材料。寻找HTS是一个雄心勃勃的项目，但如果我成功地基于这些新材料制造出HTS，这可能会引发巨大的兴趣。

项目成果

Synthesis and characterization of heterometallic rings templated through alkylammonium or imidazolium cations.

• DOI: 10.1039/d3dt00982c
• 发表时间: 2023-06-06
• 期刊: Dalton transactions (Cambridge, England : 2003)

Superconductivity in Ca-doped graphene laminates.

• DOI: 10.1038/srep23254
• 发表时间: 2016-03-16
• 期刊: Scientific reports
• 影响因子: 4.6
• 作者: Chapman J;Su Y;Howard CA;Kundys D;Grigorenko AN;Guinea F;Geim AK;Grigorieva IV;Nair RR
• 通讯作者: Nair RR