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Hydrostatic strain enhancement in laterally confined SiGe nanostripes
G. M. Vanacore, M. Chaigneau, N. Barrett +16
Strain-engineering in SiGe nanostructures is fundamental for the design of optoelectronic devices at the nanoscale. Here we explore a new strategy, where SiGe structures are latera…
Carbon sp chains in graphene nanoholes
Ivano E. Castelli, Nicola Ferri, Giovanni Onida +1
Nowadays sp carbon chains terminated by graphene or graphitic-like carbon are synthesized routinely in several nanotech labs. We propose an ab-initio study of such carbon-only mate…
Vibrational properties of sp carbon atomic wires in cluster-assembled carbon films
Giovanni Onida, Nicola Manini, Luca Ravagnan +3
Linear chains made by a single row of sp-hybridized carbon are predicted to display fascinating mechano-electronic properties connected with their termination and stabilization ins…
Comment to "Imaging the atomic orbitals of carbon atomic chains with field-emission electron microscopy"
Nicola Manini, Giovanni Onida
The observation of a stable doublet pattern in the field-emission electron microscopy of a linear atomic chain requires a stable mechanism breaking the axial symmetry, which is not…