Article Dans Une Revue Physical Review Letters Année : 2010

Scanning transmission electron microscopy using selective high-order laue zones: Three-dimensional atomic ordering in sodium cobaltate

F.-T. Huang
  • Fonction : Auteur
M.-W. Chu
  • Fonction : Auteur
F.C. Chou
  • Fonction : Auteur
G.J. Shu
  • Fonction : Auteur
L.-K. Liu
  • Fonction : Auteur
C.H. Chen
  • Fonction : Auteur

Résumé

A new scanning transmission electron microscopy (STEM) imaging technique using high-order Laue zones (named HOLZ-STEM), a diffraction contrast which has been strenuously avoided or minimized in traditional STEM imaging, can be used to obtain the additional 1D periodic information along the electron propagation axis without sacrificing atomic resolution in the lateral (2D) dimension. HOLZ-STEM has been demonstrated to resolve the 3D long-range Na ordering of Na0.71CoO2. Direct evidence of spiral-like Na-trimer chains twisting along the c axis is unambiguously established in real space.

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Dates et versions

hal-04883360 , version 1 (13-01-2025)

Identifiants

Citer

F.-T. Huang, A. Gloter, M.-W. Chu, F.C. Chou, G.J. Shu, et al.. Scanning transmission electron microscopy using selective high-order laue zones: Three-dimensional atomic ordering in sodium cobaltate. Physical Review Letters, 2010, 105 (12), ⟨10.1103/PhysRevLett.105.125502⟩. ⟨hal-04883360⟩
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