Journal
PHYSICAL REVIEW LETTERS
Volume 88, Issue 7, Pages -Publisher
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.88.076105
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The discovery of long bonds in gold atom chains has represented a challenge for physical interpretation. In fact, interatomic distances frequently attain 3.0-3.6 Angstrom values, and distances as large as 5.0 Angstrom may be occasionally observed. Here we studied gold chains by transmission electron microscopy and performed theoretical calculations using cluster ab initio density functional formalism. We show that the insertion of two carbon atoms is required to account for the longest bonds, while distances above 3 Angstrom may be due to a mixture of clean and one C atom contaminated bonds.
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