2021
DOI: 10.1021/acs.accounts.1c00131
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Cryogenic Electron Microscopy on Strongly Correlated Quantum Materials

Abstract: Metrics & MoreArticle Recommendations CONSPECTUS: Quantum materials refers to a class of materials with exotic properties that arise from the quantum mechanical nature of their constituent electrons, exhibiting, for example, high-temperature superconductivity, colossal magnetoresistivity, multiferroicity, and topological behavior. Quantum materials often have incompletely filled d-or felectron shells with narrow energy bands, and the conduct of their electrons is strongly correlated. One distinct characteristi… Show more

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Cited by 18 publications
(9 citation statements)
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“…在此基础上,他们通过调控功能单元的比例和空间分布,优化了富锂氧化物正极材料的电化学性 能 [97] 。Xia 等 [98] 另辟蹊径,提出了以尖晶石锰氧化合物作为功能单元稳定层状的 LiMnO 推动人们对功能基元序构材料低温功能特性的理解 [105,106] 。除此之外,原位原子尺度成像技术快 速发展可将功能基元序构材料原子结构的认知由静态推向远离平衡态,揭示其在使役条件下结构 与功能性的演化规律。当然,精细结构信息的获取依赖于准确、高效的透射电镜数据处理。传统 的透射电镜数据处理方法目前难以全面地发掘大容量图像和谱学数据所蕴含的丰富信息。近年来 以深度学习为代表数据处理模式逐渐在电子显微学领域展现出巨大的应用潜力,可以实现快速、 高准确度提取结构、化学和电子结构信息 [107,108] 。透射电镜与人工智能有助于建立功能基元序构 材料更加可靠、全面的构效关系,从而促进高性能材料的设计与开发。 参考文献…”
Section: 获得了铁电极化涡旋态(即涡旋畴),同时纳米尺度的涡旋与反涡旋结构呈现长程有序排列,如unclassified
“…在此基础上,他们通过调控功能单元的比例和空间分布,优化了富锂氧化物正极材料的电化学性 能 [97] 。Xia 等 [98] 另辟蹊径,提出了以尖晶石锰氧化合物作为功能单元稳定层状的 LiMnO 推动人们对功能基元序构材料低温功能特性的理解 [105,106] 。除此之外,原位原子尺度成像技术快 速发展可将功能基元序构材料原子结构的认知由静态推向远离平衡态,揭示其在使役条件下结构 与功能性的演化规律。当然,精细结构信息的获取依赖于准确、高效的透射电镜数据处理。传统 的透射电镜数据处理方法目前难以全面地发掘大容量图像和谱学数据所蕴含的丰富信息。近年来 以深度学习为代表数据处理模式逐渐在电子显微学领域展现出巨大的应用潜力,可以实现快速、 高准确度提取结构、化学和电子结构信息 [107,108] 。透射电镜与人工智能有助于建立功能基元序构 材料更加可靠、全面的构效关系,从而促进高性能材料的设计与开发。 参考文献…”
Section: 获得了铁电极化涡旋态(即涡旋畴),同时纳米尺度的涡旋与反涡旋结构呈现长程有序排列,如unclassified
“…[86] The image contrast in STEM is easy to interpret due to its incoherent property. [66,84,[87][88][89][90][91] The contrast of high angle annular dark field (HAADF) images is known to be approximately proportional to Z 2 , where Z is the atomic number, allowing direct image interpretation, making it a powerful method to visualize single dopants. [92][93][94] Both of the spectroscopy techniques (EDX and EELS) are associated with the inelastic scattering events of the electron beam with the atoms within the specimen.…”
Section: Introductionmentioning
confidence: 99%
“…Below, we briefly review each of these subjects. Before proceeding, we direct the reader's attention to other recent proposals that emphasize the use of cryogenic TEM to investigate quantum materials [5][6][7].…”
Section: Introductionmentioning
confidence: 99%