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| 2. |
- Borman, V. D., et al.
(författare)
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Observation of electron localization in rough gold nanoclusters on the graphite surface
- 2007
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Ingår i: JETP Letters. - 0021-3640 .- 1090-6487. ; 86:6, s. 393-397
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Tidskriftsartikel (refereegranskat)abstract
- The results of scanning tunneling spectroscopy of the electronic states of Au nanoclusters on the graphite surface are presented. The tunneling current is found to be different at different points of a rough-surface nano-cluster. The measured differential current-voltage curve of the clusters is nonmonotonic near the Fermi energy, and the tunneling conductance decreases by almost a factor of two as the cluster volume changes from I to 0.1 mm(3). This decrease can be associated with the change in the density of the electronic states near the Fermi energy. The observed features are qualitatively described within the framework of the mechanism of electron localization in disordered systems.
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| 3. |
- Borman, V. D., et al.
(författare)
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Formation of high- and low-density clusters in a 1D system
- 2008
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Ingår i: Physica. E, Low-Dimensional systems and nanostructures. - : Elsevier BV. - 1386-9477 .- 1873-1759. ; 40:3, s. 643-648
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Tidskriftsartikel (refereegranskat)abstract
- The properties of monoatomic chains have been studied theoretically by means of statistical mechanics methods. The applied approach can be used to evaluate the interatomic distances and lifetimes of one-dimensional (1D) and quasi-1D systems. In particular, we show that the 1D clusters of gold atoms can exist in two states with different lattice parameters (similar to 3.6 and similar to 2.8 angstrom) that can explain the whole variety of experimental observations on monoatomic gold chains without assuming any wire contamination.
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| 4. |
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| 5. |
- Troyan, V., et al.
(författare)
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Density of electronic states in gold nanoclusters pulsed laser deposited on HOPG
- 2008
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Ingår i: Superlattices and Microstructures. - : Elsevier BV. - 0749-6036 .- 1096-3677. ; 44:4-5, s. 650-656
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Tidskriftsartikel (refereegranskat)abstract
- The results of the experimental investigation of tunneling current-voltage characteristics of Au nanoclusters pulsed laser deposited on highly oriented pyrolytic graphite are presented. It is demonstrated that the observed size dependence of the tunneling conductance of Au nanoclusters can be caused by the change of the density of electronic states at the Fermi energy due to the interaction of conduction electrons with non-regular boundary of a cluster under investigation.
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