Imaging and structure analysis of ferroelectric domains,domain walls,and vortices by scanning electron diffraction

作     者：Ursula Ludacka Jiali He Shuyu Qin Manuel Zahn Emil Frang Christiansen Kasper A.Hunnestad Xinqiao Zhang Zewu Yan Edith Bourret István Kézsmárki Antonius T.Jvan Helvoort Joshua Agar Dennis Meier 

作者机构：Department of Materials Science and EngineeringNTNU Norwegian University of Science and TechnologyTrondheimNorway Department of Computer Science and EngineeringLehigh UniversityBethlehemPAUSA Department of Mechanical Engineering and MechanicsDrexel UniversityPhiladelphiaPAUSA Experimental Physics VUniversity of AugsburgAugsburgGermany Department of PhysicsNTNU Norwegian University of Science and TechnologyTrondheimNorway Department of PhysicsETH ZurichZürichSwitzerland Materials Sciences DivisionLawrence Berkeley National LaboratoryBerkeleyCAUSA 

出 版 物：《npj Computational Materials》 (计算材料学(英文))

年 卷 期：2024年第10卷第1期

页      面：2154-2161页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：funding from the European Research Council(ERC)under the European Union’s Horizon 2020 Research and Innovation Program(Grant Agreement No.863691) The Research Council of Norway is acknowledged for the support of the Norwegian Micro-and Nano-Fabrication Facility,Nor-Fab,project number 295864,and the Norwegian Center for Transmission Electron Microscopy,NORTEM(197405) S.Q.acknowledges support from the National Science Foundation under grant TRIPODS+X:RES-1839234 and DOE Data Reduction for Science award Real-Time Data Reduction Codesign at the Extreme Edge for Science J.C.A.and X.Z.acknowledge support from the Army/ARL via the Collaborative for Hierarchical Agile and Responsive Materials(CHARM)under cooperative agreement W911NF-19-2-0119 National Science Foundation under grant OAC:DMR:CSSI-2246463 We acknowledge computational resources provided by NSF grant 2320600 and National Science Foundation(NSF)awards CNS-1730158,ACI-1540112,ACI-1541349,OAC-1826967,OAC-2112167,CNS-2100237,CNS-2120019 the University of California Office of the President,and the University of California San Diego’s California Institute for Telecommunications and Information Technology/Qualcomm Institute M.Z.acknowledges funding from the Studienstiftung des Deutschen Volkes via a Doctoral Grant and the State of Bavaria via a Marianne-Plehn scholarship 

主　　题：properties structure ferroelectric 

摘      要：Direct electron detectors in scanning transmission electron microscopy give unprecedented possibilities for structure analysis at the *** electronic and quantum materials,this new capability gives access to,for example,emergent chiral structures and symmetry-breaking distortions that underpin functional *** nanoscale structural features with statistical significance,however,is complicated by the subtleties of dynamic diffraction and coexisting contrast mechanisms,which often results in a low signal-to-noise ratio and the superposition of multiple signals that are challenging to deconvolute.