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29 papers · 1 filter
PDFgetX3: A rapid and highly automatable program for processing powder diffraction data into total scattering pair distribution functions
Pavol Juhas, Timur Davis, Christopher L. Farrow +1
PDFgetX3 is a new software application for converting X-ray powder diffraction data to atomic pair distribution function (PDF). PDFgetX3 has been designed for ease of use, speed an…
Local structure of ReO at ambient pressure from neutron total scattering study
Emil S. Bozin, T. Chatterji, Simon J. L. Billinge
A hypothesis that the local rotations of ReO octahedra persist in the crystallographically untilted ambient phase of ReO is examined by the high-resolution neutron time-of-…
Graphene growth on h-BN by Molecular Beam Epitaxy
Jorge M. Garcia, Ulrich Wurstbauer, Antonio Levy +10
The growth of single layer graphene nanometer size domains by solid carbon source molecular beam epitaxy on hexagonal boron nitride (h-BN) flakes is demonstrated. Formation of sing…
Lattice dynamics reveals a local symmetry breaking in the emergent dipole phase of PbTe
Kirsten M. Ø. Jensen, Emil S. Božin, Christos D. Malliakas +5
Local symmetry breaking in complex materials is emerging as an important contributor to materials properties but is inherently difficult to study. Here we follow up an earlier stru…
Temperature dependence of the anharmonic decay of optical phonons in carbon nanotubes and graphite
Ioannis Chatzakis, Hugen Yan, Daohua Song +2
We report on the temperature dependence of the anharmonic decay rate of zone-center (G mode) optical phonons in both single-walled carbon nanotubes and graphite. The measurements a…
Imaging Stacking Order in Few-Layer Graphene
Chun Hung Lui, Zhiqiang Li, Zheyuan Chen +3
Few-layer graphene (FLG) has been predicted to exist in various crystallographic stacking sequences, which can strongly influence the electronic properties of FLG. We demonstrate a…