Identifying defects in nanoscale materials |
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Authors: | Ishigami Masa Choi Hyoung Joon Aloni Shaul Louie Steven G Cohen Marvin L Zettl A |
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Affiliation: | Department of Physics, University of California at Berkeley, Berkeley, California 94720, USA. |
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Abstract: | We have developed a novel iterative experimental-theoretical technique which can identify the atomic structure of defects in many-atom nanoscale materials from scanning tunneling microscopy and spectroscopy data. A given model for a defect structure is iteratively improved until calculated microscopy and spectroscopy data based on the model converge on the experimental results. We use the technique to identify a defect responsible for the electronic properties of a carbon nanotube intramolecular junction. Our technique can be extended for analysis of defect structures in nanoscale materials in general. |
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