Directional (partly covalent) bonding in MEAM simulations produces stable multi-atom iron contacts whose calculated conductance matches the experimental ~2 G0 peak, whereas isotropic EAM potentials only give single-atom contacts.
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Directional bonding explains high conductance values of atomic contacts in bcc metals
Directional (partly covalent) bonding in MEAM simulations produces stable multi-atom iron contacts whose calculated conductance matches the experimental ~2 G0 peak, whereas isotropic EAM potentials only give single-atom contacts.