Twist-Controlled Ferroelectricity and Emergent Multiferroicity in WSe2 Bilayers

© 2024 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 46 vom: 09. Nov., Seite e2406290
1. Verfasser: Hassan, Yasir (VerfasserIn)
Weitere Verfasser: Singh, Budhi, Joe, Minwoong, Son, Byoung-Min, Ngo, Tien Dat, Jang, Younggeun, Sett, Shaili, Singha, Arup, Biswas, Rabindra, Bhakar, Monika, Watanabe, Kenji, Taniguchi, Takashi, Raghunathan, Varun, Sheet, Goutam, Lee, Zonghoon, Yoo, Won Jong, Srivastava, Pawan Kumar, Lee, Changgu
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article Moiré superlattices ferroelectricity multiferroic behavior transition metal dichalogenides twist angle
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520 |a Recently, researchers have been investigating artificial ferroelectricity, which arises when inversion symmetry is broken in certain R-stacked, i.e., zero-degree twisted, van der Waals (vdW) bilayers. Here, the study reports the twist-controlled ferroelectricity in tungsten diselenide (WSe2) bilayers. The findings show noticeable room temperature ferroelectricity that decreases with twist angle within the range 0° < θ < 3°, and disappears completely for θ ≥ 4°. This variation aligns with moiré length scale-controlled ferroelectric dynamics (0° < θ < 3°), while loss beyond 4° may relate to twist-controlled commensurate to non-commensurate transitions. This twist-controlled ferroelectricity serves as a spectroscopic tool for detecting transitions between commensurate and incommensurate moiré patterns. At 5.5 K, 3° twisted WSe2 exhibits ferroelectric and correlation-driven ferromagnetic ordering, indicating twist-controlled multiferroic behavior. The study offers insights into twist-controlled coexisting ferro-ordering and serves as valuable spectroscopic tools 
650 4 |a Journal Article 
650 4 |a Moiré superlattices 
650 4 |a ferroelectricity 
650 4 |a multiferroic behavior 
650 4 |a transition metal dichalogenides 
650 4 |a twist angle 
700 1 |a Singh, Budhi  |e verfasserin  |4 aut 
700 1 |a Joe, Minwoong  |e verfasserin  |4 aut 
700 1 |a Son, Byoung-Min  |e verfasserin  |4 aut 
700 1 |a Ngo, Tien Dat  |e verfasserin  |4 aut 
700 1 |a Jang, Younggeun  |e verfasserin  |4 aut 
700 1 |a Sett, Shaili  |e verfasserin  |4 aut 
700 1 |a Singha, Arup  |e verfasserin  |4 aut 
700 1 |a Biswas, Rabindra  |e verfasserin  |4 aut 
700 1 |a Bhakar, Monika  |e verfasserin  |4 aut 
700 1 |a Watanabe, Kenji  |e verfasserin  |4 aut 
700 1 |a Taniguchi, Takashi  |e verfasserin  |4 aut 
700 1 |a Raghunathan, Varun  |e verfasserin  |4 aut 
700 1 |a Sheet, Goutam  |e verfasserin  |4 aut 
700 1 |a Lee, Zonghoon  |e verfasserin  |4 aut 
700 1 |a Yoo, Won Jong  |e verfasserin  |4 aut 
700 1 |a Srivastava, Pawan Kumar  |e verfasserin  |4 aut 
700 1 |a Lee, Changgu  |e verfasserin  |4 aut 
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773 1 8 |g volume:36  |g year:2024  |g number:46  |g day:09  |g month:11  |g pages:e2406290 
856 4 0 |u http://dx.doi.org/10.1002/adma.202406290  |3 Volltext 
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