Formation of the Pd atomic chain in hydrogen atmosphere

Details Formation of the Pd atomic chain in hydrogen atmosphere Formation of the Pd atomic chain in hydrogen atmosphere

2010-04-08

arxiv.org/abs/1004.1213v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11pages, 4 figures, to be appear in Phys. Rev. B

Scientific paper

The formation of a Pd atomic chain in a hydrogen atmosphere was investigated by measurements of conductance and vibrational spectroscopy of a single molecular junction, and the theoretical calculation. While atomic chains were not formed for clean 3d and 4d metals, in the case of Pd (a 4d metal) atomic chains could be formed in the presence of hydrogen. Stable atomic chains with two different atomic configurations were formed when the Pd atomic contact was stretched in a H$_{2}$ atmosphere; highly conductive short hydrogen adsorbed atomic chain and low conductive long hydrogen incorporated atomic chain.

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