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  1. No Access

    Chapter and Conference Paper

    Aberration corrected STEM and EELS: Atomic scale chemical map**

    Scanning transmission electron microscopy (STEM) has enjoyed a recent surge in activity for two reasons. A long awaited improvement in the STEM performance of conventional TEM/STEM instruments coincided with t...

    A. L. Bleloch, M. Gass, L. Jiang, B. Mendis… in EMC 2008 14th European Microscopy Congress… (2008)

  2. No Access

    Chapter and Conference Paper

    Three-dimensional atomic-scale structure of size-selected nanoclusters on surfaces

    An unambiguous determination of the three-dimensional structure of nanoparticles is challenging. Electron tomography requires a series of images taken for many different specimen orientations. This approach is...

    Z. Y. Li, N. P. Young, M. Di Vece… in EMC 2008 14th European Microscopy Congress… (2008)

  3. No Access

    Chapter and Conference Paper

    Smart acquisition EELS

    Electron energy loss (EEL) spectroscopy and high angle annular dark field (HAADF) imaging in aberration-corrected electron microscopes are powerful techniques to determine the chemical composition and structur...

    K. Sader, P. Wang, A. L. Bleloch, A. Brown… in EMC 2008 14th European Microscopy Congress… (2008)

  4. No Access

    Article

    Three-dimensional atomic-scale structure of size-selected gold nanoclusters

    It is difficult to determine the three-dimensional structure of ultrasmall nanoparticles as they are unstable and tend to interact with any incident electron beams used to examine them. Now, using aberration-c...

    Z. Y. Li, N. P. Young, M. Di Vece, S. Palomba, R. E. Palmer, A. L. Bleloch… in Nature (2008)

  5. No Access

    Chapter and Conference Paper

    Structure and stability of core-shell AuAg nanopartciels

    Nanopartciels comprising two different metallic elements offer additional degrees of freedom for altering their physical properties by varying the atomic composition and atomic arrangement. This could potentia...

    Z. Y. Li, R. Merrifield, Y. Feng… in EMC 2008 14th European Microscopy Congress… (2008)

  6. No Access

    Article

    Demonstration of Arrays of Sub-Micrometer Solid-State Fresnel Lenses for Electrons

    We demonstrate the focusing action of a compact solid state pixelated Fresnel phase (PFP) lens for electrons (700 nm in diameter), consisting of an array of holes (“pixelated”) directly drilled by a finely foc...

    Y. Ito, A. L. Bleloch, L. M. Brown in MRS Online Proceedings Library (2001)

  7. No Access

    Article

    Nanofabrication of solid- state Fresnel lenses for electron optics

    Lenses for precision electron optics are mainly magnetic, requiring large cylinders of soft iron to focus an electron beam. Such lenses can only be convergent1, and so suffer from spherical aberration. Electrosta...

    Y. Ito, A. L. Bleloch, L. M. Brown in Nature (1998)

  8. No Access

    Article

    Effects of small external magnetic fields on the hyperfine field of iron in iron metal above the curie temperature: A new method for studying critical phenomena

    By applying magnetic fields up to 2 kG, the equation of state and the critical dynamics of a spin system near its critical point can be studied with the Mössbauer effect. As an example, the equation of state n...

    B. Kolk, A. L. Bleloch in Hyperfine Interactions (1988)

  9. No Access

    Chapter

    Inelastic Scattering Effects in RHEED and Reflection Imaging

    Although the very first work on the dynamical theory of electron diffraction (Bethe[1]), dealt with RHEED geometry (the so-called Bragg case), progress in develo** a completely satisfactory theory has been r...

    A. L. Bleloch, A. Howie, R. H. Milne… in Reflection High-Energy Electron Diffractio… (1988)

  10. No Access

    Article

    Recoilless fraction studies of iron near the Curie temperature

    The recoilless fractionf of57Fe in iron is determined as a function of temperatureT in the vicinity of the Curie temperatureTc using a source of57Co diffused in a foil of 100% enriched56Fe. Our results show thatf

    B. Kolk, A. L. Bleloch, D. B. Hall in Hyperfine Interactions (1986)

  11. No Access

    Article

    Mössbauer studies of medium-carbon, high-chromium martensitic steels

    57Fe Mössbauer effect spectroscopy is employed to determine the relationship between the microstructure and the mechanical properties of martensitic steels with base composition Fe-10wt%Cr-0,26wt%C. The microstr...

    J. A. Peters, B. Kolk, A. L. Bleloch in Hyperfine Interactions (1986)