S. Pennycook

Publications1,300
h-index104
Citations43,981
Highly Influential Citations405
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High-resolution Z-contrast imaging of crystals
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Atom-by-atom structural and chemical analysis by annular dark-field electron microscopy
TLDR
Annular dark-field imaging in an aberration-corrected scanning transmission electron microscope optimized for low voltage operation can resolve and identify the chemical type of every atom in monolayer hexagonal boron nitride that contains substitutional defects.
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The principles and interpretation of annular dark-field Z-contrast imaging
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Monolayer PtSe₂, a New Semiconducting Transition-Metal-Dichalcogenide, Epitaxially Grown by Direct Selenization of Pt.
TLDR
The epitaxial growth of high-quality single-crystal, monolayer platinum diselenide (PtSe2), a new member of the layered TMDs family, by a single step of direct selenization of a Pt(111) substrate is demonstrated.
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Z-contrast stem for materials science
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Scanning transmission electron microscopy : imaging and analysis
Electron Optics and Aberration Correction. -Fundamentals of Scattering Theory. -Image formation in STEM. -Electron energy loss spectroscopy. -Energy dispersive x-ray analysis. -STEM of complex…
Colossal Ionic Conductivity at Interfaces of Epitaxial ZrO2:Y2O3/SrTiO3 Heterostructures
TLDR
It is proposed that the atomic reconstruction at the interface between highly dissimilar structures (such as fluorite and perovskite) provides both a large number of carriers and a high-mobility plane, yielding colossal values of the ionic conductivity.
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Incoherent imaging using dynamically scattered coherent electrons
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On the origin of the high coarsening resistance of Ω plates in Al–Cu–Mg–Ag Alloys
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Irradiation-free, columnar defects comprised of self-assembled nanodots and nanorods resulting in strongly enhanced flux-pinning in YBa2Cu3O7−δ films
The development of biaxially textured, second-generation, high-temperature superconducting (HTS) wires is expected to enable most large-scale applications of HTS materials, in particular…
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