Chemical Vapor Deposition of Superconducting FeTe1-xSeNanosheets

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Dianyi Hu
  • Chen Ye
  • Xiaowei Wang
  • Xiaoxu Zhao
  • Lixing Kang
  • Jiawei Liu
  • Ruihuan Duan
  • Xun Cao
  • Yanchao He
  • Junxiong Hu
  • Shengyao Li
  • Qingsheng Zeng
  • Ya Deng
  • Peng-Fei Yin
  • Ariando Ariando
  • Yizhong Huang
  • Xiao Renshaw Wang
  • Zheng Liu

Detail(s)

Original languageEnglish
Pages (from-to)5338–5344
Journal / PublicationNano Letters
Volume21
Issue number12
Online published9 Jun 2021
Publication statusPublished - 23 Jun 2021

Abstract

FeTe1–xSex, a promising layered material used to realize Majorana zero modes, has attracted enormous attention in recent years. Pulsed laser deposition (PLD) and molecular-beam epitaxy (MBE) are the routine growth methods used to prepare FeTe1–xSex thin films. However, both methods require high-vacuum conditions and polished crystalline substrates, which hinder the exploration of the topological superconductivity and related nanodevices of this material. Here we demonstrate the growth of the ultrathin FeTe1–xSex superconductor by a facile, atmospheric pressure chemical vapor deposition (CVD) method. The composition and thickness of the two-dimensional (2D) FeTe1–xSex nanosheets are well controlled by tuning the experimental conditions. The as-prepared FeTe0.8Se0.2 nanosheet exhibits an onset superconducting transition temperature of 12.4 K, proving its high quality. Our work offers an effective strategy for preparing the ultrathin FeTe1–xSex superconductor, which could become a promising platform for further study of the unconventional superconductivity in the FeTe1–xSex system.

Research Area(s)

  • chemical vapor deposition, FeTeSe, iron-based superconductor

Citation Format(s)

Chemical Vapor Deposition of Superconducting FeTe1-xSeNanosheets. / Hu, Dianyi; Ye, Chen; Wang, Xiaowei; Zhao, Xiaoxu; Kang, Lixing; Liu, Jiawei; Duan, Ruihuan; Cao, Xun; He, Yanchao; Hu, Junxiong; Li, Shengyao; Zeng, Qingsheng; Deng, Ya; Yin, Peng-Fei; Ariando, Ariando; Huang, Yizhong; Zhang, Hua; Wang, Xiao Renshaw; Liu, Zheng.

In: Nano Letters, Vol. 21, No. 12, 23.06.2021, p. 5338–5344.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review