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Conductance Oscillations in Zigzag Platinum Chains.

Research output: Contribution to journalJournal article

Article number256804
<mark>Journal publication date</mark>15/12/2005
<mark>Journal</mark>Physical Review Letters
Issue number25
Number of pages4
<mark>Original language</mark>English


Using first principles simulations we perform a detailed study of the structural, electronic, and transport properties of monatomic platinum chains, sandwiched between platinum electrodes. First, we demonstrate that the most stable atomic configuration corresponds to a zigzag arrangement that gradually straightens as the chains are stretched. Second, we find that the averaged conductance shows slight parity oscillations with the number n of atoms in the chain. Additionally, the conductance of chains of fixed n oscillates as the end atoms are pulled apart, due to the gradual closing and opening of conductance channels as the chain straightens.