Spatially Tunable Interfacial Ferroelectricity in Low-Symmetric WTe <sub>2</sub>

Interfacial ferroelectricity, recently discovered in van der Waals (vdW) materials, exhibits switchable dipoles at the interface. Most experiments are realized by stacking high-symmetry two-dimensional (2D) lattices in specific stacking configurations. A prototype based on a synthetic and low-symmetry 2D lattice is robust for switchable dipoles with broken symmetry at the interface. Here, we show that interfacial ferroelectricity can be spatially tunable by controlling the odd-even layer number in the synthetic low-symmetry lattice of 1T'-WTe<sub>2</sub>. A high ferroelectric transition temperature (<i>T</i><sub>C</sub>) of >550 K is confirmed. The density functional theory (DFT) calculations indicate that interlayer sliding along the <i>b</i>-axis enables polarization switching of the interfacial dipoles. This study moves a significant step toward spatially tunable interfacial ferroelectricity.

Authors

Institutions

Publication Details

Journal
Nano Letters
Published
2025-12-17
DOI
https://doi.org/10.1021/acs.nanolett.5c05610
Citations
1
Primary Topic
2D Materials and Applications
Type
article
Field-Weighted Citation Impact
0.52
Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

Spatially Tunable Interfacial Ferroelectricity in Low-Symmetric WTe 2

Erh‐Chen Lin, Yi‐Hsien Lee, Yuting Lin, Shuzhen Fan et al.
1 citations
Nano Letters
2D Materials and Applications
0.52
article

Spatially Tunable Interfacial Ferroelectricity in Low-Symmetric WTe 2

Erh‐Chen Lin, Yi‐Hsien Lee, Yuting Lin, Shuzhen Fan, Hsin Lin, Hung‐Ju Tien, Hao Zhu, Chi Chen, Hui Deng, Shang‐Fan Lee, Po‐Yen Liu, Chun‐An Chen, Chia-Seng Chang, Che-Min Lin, Tay-Rong Chang, Ying‐Yu Lai, Yi-Cheng Chiang
article en
1 citations

Abstract

Interfacial ferroelectricity, recently discovered in van der Waals (vdW) materials, exhibits switchable dipoles at the interface. Most experiments are realized by stacking high-symmetry two-dimensional (2D) lattices in specific stacking configurations. A prototype based on a synthetic and low-symmetry 2D lattice is robust for switchable dipoles with broken symmetry at the interface. Here, we show that interfacial ferroelectricity can be spatially tunable by controlling the odd-even layer number in the synthetic low-symmetry lattice of 1T'-WTe<sub>2</sub>. A high ferroelectric transition temperature (<i>T</i><sub>C</sub>) of >550 K is confirmed. The density functional theory (DFT) calculations indicate that interlayer sliding along the <i>b</i>-axis enables polarization switching of the interfacial dipoles. This study moves a significant step toward spatially tunable interfacial ferroelectricity.

Nano LettersVol. 26(2)
National Tsing Hua University (TW), University of Michigan (US), Research Center for Applied Science, Academia Sinica (TW), Joint Center for Quantum Information and Computer Science (US), Institute of Physics, Academia Sinica (TW), National Center for Theoretical Sciences (TW), National Center for Theoretical Sciences, Physics Division, National Cheng Kung University (TW)
Openalex Percentile: Top 29%
2D Materials and Applications
0.52
DOIOpen Access PDFOpenAlex
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.