Anisotropic Superconducting Nb2CTx MXene Processed by Atomic Exchange at the Wafer Scale

Xiangming Xu, Chenghui Zhang, Jun Yin, Jasmin Smajic, Mohammed Bahabri, Yongjiu Lei, Mohamed Nejib Hedhili, Mrinal K. Hota, Lin Shi, Tianchao Guo, Dongxing Zheng, Jehad K. El-Demellawi, Mario Lanza, Pedro M.F.J. Costa, Osman M. Bakr, Omar F. Mohammed, Xixiang Zhang*, Husam N. Alshareef*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Superconductivty has recently been induced in MXenes through surface modification. However, the previous reports have mostly been based on powders or cold-pressed pellets, with no known reports on the intrinsic superconsucting properties of MXenes at the nanoale. Here, it is developed a high-temperature atomic exchange process in NH3 atmosphere which induces superconductivity in either singleflakes or thin films of Nb2CTx MXene. The exchange process between nitrogen atoms and fluorine, carbon, and oxygen atoms in the MXene lattice and related structural adjustments are studied using both experiments and density functional theory. Using either single-flake or thin-film devices, an anisotropic magnetic response of the 2D superconducting transformation has been successfully revealed. The anisotropic superconductivity is further demonstrated using superconducting thin films uniformly deposited over a 4 in. wafers, which opens up the possibility of scalable MXene-based superconducting devices.

Original languageEnglish (US)
Article number2305326
JournalAdvanced Materials
Volume36
Issue number3
DOIs
StatePublished - Jan 18 2024

Keywords

  • anisotropy
  • atomic exchange
  • NbCT MXene
  • superconductivity
  • wafer scale

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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