Purely in-plane ferroelectricity in monolayer SnS at room temperature
10.1038/s41467-020-16291-9
Crossref journal-article
Springer Science and Business Media LLC
Nature Communications (297)
Abstract

Abstract2D van der Waals ferroelectrics have emerged as an attractive building block with immense potential to provide multifunctionality in nanoelectronics. Although several accomplishments have been reported in ferroelectric switching for out-of-plane ferroelectrics down to the monolayer, a purely in-plane ferroelectric has not been experimentally validated at the monolayer thickness. Herein, an in-plane ferroelectricity is demonstrated for micrometer-size monolayer SnS at room temperature. SnS has been commonly regarded to exhibit the odd–even effect, where the centrosymmetry breaks only in the odd-number layers to exhibit ferroelectricity. Remarkably, however, a robust room temperature ferroelectricity exists in SnS below a critical thickness of 15 layers with both an odd and even number of layers, suggesting the possibility of controlling the stacking sequence of multilayer SnS beyond the limit of ferroelectricity in the monolayer. This work will pave the way for nanoscale ferroelectric applications based on SnS as a platform for in-plane ferroelectrics.

Bibliography

Higashitarumizu, N., Kawamoto, H., Lee, C.-J., Lin, B.-H., Chu, F.-H., Yonemori, I., Nishimura, T., Wakabayashi, K., Chang, W.-H., & Nagashio, K. (2020). Purely in-plane ferroelectricity in monolayer SnS at room temperature. Nature Communications, 11(1).

Authors 10
  1. Naoki Higashitarumizu (first)
  2. Hayami Kawamoto (additional)
  3. Chien-Ju Lee (additional)
  4. Bo-Han Lin (additional)
  5. Fu-Hsien Chu (additional)
  6. Itsuki Yonemori (additional)
  7. Tomonori Nishimura (additional)
  8. Katsunori Wakabayashi (additional)
  9. Wen-Hao Chang (additional)
  10. Kosuke Nagashio (additional)
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Dates
Type When
Created 5 years, 3 months ago (May 15, 2020, 6:05 a.m.)
Deposited 2 years, 8 months ago (Dec. 5, 2022, 5:03 p.m.)
Indexed 1 day, 5 hours ago (Aug. 31, 2025, 6:07 a.m.)
Issued 5 years, 3 months ago (May 15, 2020)
Published 5 years, 3 months ago (May 15, 2020)
Published Online 5 years, 3 months ago (May 15, 2020)
Funders 1
  1. MEXT | Japan Society for the Promotion of Science 10.13039/501100001691 Japan Society for the Promotion of Science

    Region: Asia

    gov (National government)

    Labels6
    1. KAKENHI
    2. 日本学術振興会
    3. Gakushin
    4. JSPS KAKEN
    5. JSPS Grants-in-Aid for Scientific Research
    6. JSPS
    Awards3
    1. JP19H00755, 19K21956, JP19J13579 and JP 18H01154
    2. the JSPS A3 Foresight Program
    3. A. Advanced Research Networks

@article{Higashitarumizu_2020, title={Purely in-plane ferroelectricity in monolayer SnS at room temperature}, volume={11}, ISSN={2041-1723}, url={http://dx.doi.org/10.1038/s41467-020-16291-9}, DOI={10.1038/s41467-020-16291-9}, number={1}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Higashitarumizu, Naoki and Kawamoto, Hayami and Lee, Chien-Ju and Lin, Bo-Han and Chu, Fu-Hsien and Yonemori, Itsuki and Nishimura, Tomonori and Wakabayashi, Katsunori and Chang, Wen-Hao and Nagashio, Kosuke}, year={2020}, month=may }