Towards unified understanding of conductance of stretched monatomic contacts
H. -W. Lee, H. -S. Sim, D. -H. Kim, K. J. Chang
Abstract
When monatomic contacts are stretched, their conductance behaves in qualitatively different ways depending on their constituent atomic elements. Under a single assumption of resonance formation, we show that various conductance behavior can be understood in a unified way in terms of the response of the resonance to stretching. This analysis clarifies the crucial roles played by the number of valence electrons, charge neutrality, and orbital shapes.
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