Aberration corrected 1.2-MV cold field-emission transmission electron microscope with a sub-50-pm resolution

Akashi, Takumi; Takahashi, Yoshio; Tanigaki, Toshiaki; Shimakura, Tomokazu; Kawasaki, Takeshi; Furutsu, Tadao; Shinada, Hiroyuki; Müller, Heiko; Haider, Maximilian; Osakabe, Nobuyuki; Tonomura, Akira

doi:10.1063/1.4908175

Cited by 89 publications

(45 citation statements)

References 25 publications

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“…The resolution was later improved further by other aberration-corrected microscopes, and it presently stands at 0.45 Å [37] for STEM and 0.44 Å for (high voltage) CTEM [38]. The subsequent improvements, however, did not change the fact that it was our correction project that first proved that aberration-corrected microscopes could reach higher spatial resolution than any other electron microscope type.…”

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confidence: 86%

Brief history of the Cambridge STEM aberration correction project and its progeny

et al. 2015

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mentioning

confidence: 86%

Brief history of the Cambridge STEM aberration correction project and its progeny

et al. 2015

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“…Electron holography studies using a newly developed high‐voltage (1.2 MV) electron microscope will help elucidate quantum phenomena at high magnification and high resolution. In addition, this high‐voltage electron microscope can be used to observe the interactions between electrons and electromagnetic fields with atomic resolution for relatively thick specimens.…”

Section: Summary and Perspectivesmentioning

confidence: 99%

Advanced Electron Holography Applied to Electromagnetic Field Study in Materials Science

2016

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Advances and applications of electron holography to the study of electromagnetic fields in various functional materials are presented. In particular, the development of split-illumination electron holography, which introduces a biprism in the illumination system of a holography electron microscope, enables highly accurate observations of electromagnetic fields and the expansion of the observable area. First, the charge distributions on insulating materials were studied by using split-illumination electron holography and including a mask in the illumination system. Second, the three-dimensional spin configurations of skyrmion lattices in a helimagnet were visualized by using a high-voltage holography electron microscope. Third, the pinning of the magnetic flux lines in a high-temperature superconductor YBa Cu O was analyzed by combining electron holography and scanning ion microscopy. Finally, the dynamic accumulation and collective motions of electrons around insulating biomaterial surfaces were observed by utilizing the amplitude reconstruction processes of electron holography.

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“…In this way, Gabor's original idea to overcome the resolution limit of an electron microscope has been realized. Using off-axis holography in an aberration-corrected transmission electron microscope a resolution of a few picometers has been demonstrated (Harada, et al, 2004;Akashi, et al, 2015). However, for our purposes, only low resolution holograms are used so that the whole processing of holograms is greatly simplified.…”

Section: Methodsmentioning

confidence: 99%

Holography: origin, basic principle and applications of a revolutionary communication method in art and science

Matteucci

2015

Rev. Acad. Colomb. Cienc. Ex. Fis. Nat.

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History of human kind shows that man has developed various communication methods such as language, art, writing, photography, etc. The most revolutionary of these methods is holography, a completely new way to look at the world around us. Here we describe how art, writing and holography, that at a first hasty analysis might be considered different unrelated disciplines, have actually an interesting common background. This include the basic men's need to transfer information as well as the contribution of a few important actors who developed the information transfer process. A short account is set of the origin and the working principle of holography against this multi-disciplinary framework. Although a large number of applications of holography has been devised, here only one example is reported to demonstrate the potential of electron holography to display pictorial maps of magnetic lines of force in matter.Key words: Optical holography, electron holography, magnetic domains, magnetic flux lines.Holografía: origen, principio básico y aplicaciones de un método de comunicación revolucionario en arte y ciencia ResumenLa historia de la humanidad muestra que el hombre ha desarrollado varios métodos de comunicación como el lenguaje, el arte, la escritura, la fotografía, etc. El más revolucionario de estos métodos es la holografía, una nueva manera de mirar el mundo que nos rodea. En este artículo se describe cómo el arte, la escritura y la holografía, que en un primer análisis apresurado podrían considerase como disciplinas diferentes y no relacionadas entre sí, tienen en realidad un interesante fondo común. Esto incluye la necesidad básica del hombre de transferir información, como también la contribución de algunos actores importantes que desarrollaron el proceso de transferencia de información. Brevemente se establecen el origen y principio de funcionamiento de la holografía frente a este marco multidisciplinar. Aunque ha sido inventado un gran numero de aplicaciones de la holografía, solo reportaremos aquí un ejemplo quedemuestra el potencial de la holografía de electrones para desplegar mapas pictoricos de líneas de fuerza magnetica en la materia.Palabras clave: holografía óptica, holografía de electrones, dominios magnéticos, líneas de flujo magnético

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Aberration corrected 1.2-MV cold field-emission transmission electron microscope with a sub-50-pm resolution

Cited by 89 publications

References 25 publications

Brief history of the Cambridge STEM aberration correction project and its progeny

Brief history of the Cambridge STEM aberration correction project and its progeny

Advanced Electron Holography Applied to Electromagnetic Field Study in Materials Science

Holography: origin, basic principle and applications of a revolutionary communication method in art and science

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