An amendment to this paper has been published and can be accessed via the original article.
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http://dx.doi.org/10.1186/s11671-020-03385-y | DOI Listing |
Nat Mater
January 2025
School of Physics and Astronomy, Beijing Normal University, Beijing, China.
Small
January 2025
Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China.
The Peierls distortion plays an essential role in governing the in-plane ferroelectricity and nonlinear optical characteristics of anisotropic niobium oxide dihalides, such as NbOCl and NbOI. Despite its significance, experimental investigation into the structural, optical, and ferroelectric properties of NbOBr has been lacking. Here, the successful fabrication of centimeter-sized, high-quality NbOBr single crystals, enabling direct observation of Peierls distortion using aberration-corrected scanning transmission electron microscopy, is reported.
View Article and Find Full Text PDFAdv Mater
November 2024
CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing, 100190, China.
Ferroelectric 2D van der Waals (vdW) layered materials are attracting increasing attention due to their potential applications in next-generation nanoelectronics and in-memory computing with polarization-dependent functionalities. Despite the critical role of polarization in governing ferroelectricity behaviors, its origin and relation with local structures in 2D vdW layered materials have not been fully elucidated so far. Here, intralayer sliding of approximately six degrees within each quadruple-layer of the prototype 2D vdW ferroelectrics InSe is directly observed and manipulated using sub-angstrom resolution imaging and in situ biasing in an aberration-corrected scanning transmission electron microscope.
View Article and Find Full Text PDFAdv Mater
September 2024
Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Anhui Key Laboratory of Optoelectronic Science and Technology, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
Intelligent polymer nanocomposites are multicomponent and multifunctional materials that show immense potential across diverse applications. However, to exhibit intelligent traits such as adaptability, reconfigurability and dynamic properties, these materials often require a solvent or heating environment to facilitate the mobility of polymer chains and nanoparticles, rendering their applications in everyday settings impractical. Here intelligent azopolymer nanocomposites that function effectively in a solvent-free, room-temperature environment based on photocontrolled reversible solid-fluid transitions via switching flow temperatures (Ts) are shown.
View Article and Find Full Text PDFThis publisher's note reports a correction in Appl. Opt.63, 1153 (2024)APOPAI0003-693510.
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