Atomically Thin Superconductors

Zhi Li, Lina Sang, Peng Liu, Zengji Yue, Michael S. Fuhrer, Qikun Xue, Xiaolin Wang

Research output: Contribution to journalReview ArticleResearchpeer-review

Abstract

In recent years, atomically thin superconductors, including atomically thin elemental superconductors, single layer FeSe films, and few-layer cuprate superconductors, have been studied extensively. This hot research field is mainly driven by the discovery of significant superconductivity enhancement and high-temperature interface superconductivity in single-layer FeSe films epitaxially grown on SrTiO3 substrates in 2012. This study has attracted tremendous research interest and generated more studies focusing on further enhancing superconductivity and finding the origin of the superconductivity. A few years later, research on atomically thin superconductors has extended to cuprate superconductors, unveiling many intriguing properties that have neither been proposed or observed previously. These new discoveries challenge the current theory regarding the superconducting mechanism of unconventional superconductors and indicate new directions on how to achieve high-transition-temperature superconductors. Herein, this exciting recent progress is briefly discussed, with a focus on the recent progress in identifying new atomically thin superconductors.

Original languageEnglish
Number of pages15
JournalSmall
DOIs
Publication statusAccepted/In press - 4 May 2020

Keywords

  • atomically thin materials
  • cuprate superconductors
  • interfaces
  • iron-based superconductors

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