Optimisation and applications of the Cambridge University 600 kV high resolution electron microscope

Abstract The Cambridge University 600 kV high resolution electron microscope is currently operating with a directly interpretable image resolution of close to 2 A. Following a brief outline of salient features of this HREM which have proven crucial to optimising its performance, details are given of methods whereby such high resolution levels are now obtainable on a routine basis. Some recent applications are also described. The success of these studies confirms that electron microscopy at the atomic resolution level will have an increasing impact in many areas of materials research.

[1]  David J. Smith,et al.  Molecular detail in electron micrographs of quaterrylene C40H20 , 1981, Nature.

[2]  David J. Smith,et al.  Dynamic observation of defect annealing in CdTe at lattice resolution , 1982, Nature.

[3]  K. C. Smith,et al.  The application of image pickup and storage‐display techniques to the high resolution electron microscope , 1975 .

[4]  H. Boersch,et al.  Experimentelle Bestimmung der Energieverteilung in thermisch ausgelösten Elektronenstrahlen , 1954 .

[5]  David J. Smith,et al.  Direct lattice imaging of small metal particles , 1981 .

[6]  S. Horiuchi A High Voltage Electron Microscope Constructed for Observing High-Resolution Crystal Structure Images , 1978 .

[7]  A. Broers,et al.  LANTHANUM HEXABORIDE ELECTRON EMITTER. , 1972 .

[8]  David J. Smith,et al.  High-resolution electron microscopy of metal-intercalated “Graphimets” , 1981 .

[9]  K. C. A. Smith,et al.  An automatic focusing and astigmatism correction system for the SEM and CTEM , 1982 .

[10]  David J. Smith,et al.  Direct observation of the structure of a metallic alloy glass , 1979, Nature.

[11]  S. Isoda,et al.  Lattice imaging of a grain boundary in crystalline germanium , 1977 .

[12]  K. Herrmann The present state of instrumentation in high-resolution electron microscopy. , 1978, Journal of physics E: Scientific instruments.

[13]  G. Wood,et al.  Electron-optical imaging of Ti6O11 at 16 point-to-point resolution , 1978 .

[14]  J. M. Cowley,et al.  Fourier Images: I - The Point Source , 1957 .

[15]  Seiji Isoda,et al.  Accurate stigmating of a high voltage electron microscope , 1977 .

[16]  P. W. Turner,et al.  Atomic resolution with a 600-kV electron microscope , 1979, Nature.

[17]  V. Cosslett,et al.  Atomic Resolution with the Electron Microscope , 1981 .

[18]  D. J. Barber,et al.  High-voltage, high-resolution lattice images of dolomite , 1981, Nature.

[19]  D. Jefferson,et al.  Individual silicate chains in wollastonite by high resolution electron microscopy , 1979, Nature.

[20]  J. Hutchison Below the “Scherzer resolution” limit: Fact and artefact , 1982 .

[21]  W. Stobbs High resolution: Direct or indirect? , 1982 .