Recent Advances in 2D Superconductors. Issue 18 (26th March 2021)

• Record Type: Journal Article
• Authors: Qiu, Dong; Gong, Chuanhui; Wang, SiShuang; Zhang, Miao; Yang, Chao; Wang, Xianfu; Xiong, Jie
• Is Part Of: Advanced materials. Volume 33:Issue 18(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-03-26
• Subjects: 2D materials -- superconductivity -- moiré superlattices -- heterostructures; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.202006124
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract: The emergence of superconductivity in 2D materials has attracted much attention and there has been rapid development in recent years because of their fruitful physical properties, such as high transition temperature ( T c ), continuous phase transition, and enhanced parallel critical magnetic field ( B c ). Tremendous efforts have been devoted to exploring different physical parameters to figure out the mechanisms behind the unexpected superconductivity phenomena, including adjusting the thickness of samples, fabricating various heterostructures, tuning the carrier density by electric field and chemical doping, and so on. Here, different types of 2D superconductivity with their unique characteristics are introduced, including the conventional Bardeen–Cooper–Schrieffer superconductivity in ultrathin films, high‐ T c superconductivity in Fe‐based and Cu‐based 2D superconductors, unconventional superconductivity in newly discovered twist‐angle bilayer graphene, superconductivity with enhanced B c, and topological superconductivity. A perspective toward this field is then proposed based on academic knowledge from the recently reported literature. The aim is to provide researchers with a clear and comprehensive understanding about the newly developed 2D superconductivity and promote the development of this field much further. Abstract : The distinct superconductivity of 2D superconductors is discussed comprehensively based on the material structure characteristics and modulation methods. Perspectives on the unconventional superconductivity, Ising superconductivity, and topological superconductivity are also provided on the basis of experiment‐based literature to date.