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説明:

An implementation of drift compensation for imaging at the nanoscale is presented. The method is based on computer vision techniques and hence applicable to any microscope that generates images through a computer interface. The algorithm extracts and matches pairs of feature points from consecutive images to compute and compensate for probe–sample misalignments over time. The protocol also applies selection rules that enable it to withstand significant changes in image contrast. We demonstrate our fully automatic implementation by continuously imaging the same area of a Si(100) surface at the atomic scale with scanning probe microscopy over a period of 25 h at room temperature, showing that the method is robust even under the presence of non-linear drift or spontaneous changes of the probe apex. We apply our method to study the movement of pairs of tin atoms confined within a half-unit cell of the Si(111)-(7 x 7) surface and estimate the energy barrier for their diffusion at room temperature.

権利情報:

• In Copyright
  

  This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Zhuo Diao, Keiichi Ueda, Linfeng Hou, Hayato Yamashita, Oscar Custance, Masayuki Abe; Automatic drift compensation for nanoscale imaging using feature point matching. Appl. Phys. Lett. 20 March 2023; 122 (12): 121601 and may be found at https://doi.org/10.1063/5.0139330.

キーワード: canning probe microscopy, computer vision, automatic drift compensation, atomic resolution

刊行年月日: 2023-03-20

出版者: AIP Publishing

掲載誌:

• Applied Physics Letters (ISSN: 00036951) vol. 122 issue. 12 121601

研究助成金:

• Japan Society for the Promotion of Science 19H05789
• Japan Society for the Promotion of Science London 21H01812
• Japan Society for the Promotion of Science London 21K18876
• National Institute for Materials Science PF2010
• National Institute for Materials Science PF3130
• National Institute for Materials Science QN3510
• JST SPRING JPMJSP2138

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5133

公開URL: https://doi.org/10.1063/5.0139330

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更新時刻: 2024-12-10 16:56:37 +0900

MDRでの公開時刻: 2024-12-10 16:56:37 +0900