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Articles by D Akahoshi
Total Records ( 1 ) for D Akahoshi
  M Saito , K Kimoto , T Nagai , S Fukushima , D Akahoshi , H Kuwahara , Y Matsui and K. Ishizuka
 

We demonstrate local crystal structure analysis based on annular dark-field (ADF) imaging in scanning transmission electron microscopy (STEM). Using a stabilized STEM instrument and customized software, we first realize high accuracy of elemental discrimination and atom-position determination with a 10-pm-order accuracy, which can reveal major cation displacements associated with a variety of material properties, e.g. ferroelectricity and colossal magnetoresistivity. A-site ordered/disordered perovskite manganites Tb0.5Ba0.5MnO3 are analysed; A-site ordering and a Mn-site displacement of 12 pm are detected in each specific atomic column. This method can be applied to practical and advanced materials, e.g. strongly correlated electron materials.

 
 
 
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