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Title: Chemical vapor deposition of superconducting FeTe1-xSex nanosheets
Authors: 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, Renshaw Xiao
Liu, Zheng
Keywords: Engineering::Materials
Issue Date: 2021
Source: Hu, D., Ye, C., Wang, X., Zhao, X., Kang, L., Liu, J., Duan, R., Cao, X., He, Y., Hu, J., Li, S., Zeng, Q., Deng, Y., Yin, P., Ariando, A., Huang, Y., Zhang, H., Wang, R. X. & Liu, Z. (2021). Chemical vapor deposition of superconducting FeTe1-xSex nanosheets. Nano Letters, 21(12), 5338-5344.
Journal: Nano Letters 
Abstract: FeTe1-xSe x, 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-xSexthin 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.
ISSN: 1530-6992
DOI: 10.1021/acs.nanolett.1c01577
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: embargo_20220623
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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