Correlating structure, conductance, and mechanics of silver atomic-scale contacts

Aradhya SV, Frei M, Halbritter A, Venkataraman L. 2013. Correlating structure, conductance, and mechanics of silver atomic-scale contacts. ACS Nano. 7(4), 3706–3712.

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Journal Article | Published | English

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Author
Aradhya, Sriharsha V.; Frei, Michael; Halbritter, András; Venkataraman, LathaISTA
Abstract
We measure simultaneously force and conductance of Ag metal point-contacts under ambient conditions at room temperature. We observe the formation of contacts with a conductance close to 1 G0, the quantum of conductance, which can be attributed to a single-atom contact, similar to those formed by Au. We also find two additional conductance features at ∼0.4 G0 and ∼1.3 G0, which have been previously ascribed to contacts with oxygen contaminations. Here, using a conductance cross-correlation technique, we distinguish three different atomic-scale structural motifs and analyze their rupture forces and stiffness. Our results allow us to assign the ∼0.4 G0 conductance feature to an Ag–O–Ag contact and the ∼1.3 G0 feature to an Ag–Ag single-atom contact with an oxygen atom in parallel. Utilizing complementary information from force and conductance, we thus demonstrate the correlation of conductance with the structural evolution at the atomic scale.
Publishing Year
Date Published
2013-03-23
Journal Title
ACS Nano
Publisher
American Chemical Society
Volume
7
Issue
4
Page
3706-3712
ISSN
eISSN
IST-REx-ID

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Aradhya SV, Frei M, Halbritter A, Venkataraman L. Correlating structure, conductance, and mechanics of silver atomic-scale contacts. ACS Nano. 2013;7(4):3706-3712. doi:10.1021/nn4007187
Aradhya, S. V., Frei, M., Halbritter, A., & Venkataraman, L. (2013). Correlating structure, conductance, and mechanics of silver atomic-scale contacts. ACS Nano. American Chemical Society. https://doi.org/10.1021/nn4007187
Aradhya, Sriharsha V., Michael Frei, András Halbritter, and Latha Venkataraman. “Correlating Structure, Conductance, and Mechanics of Silver Atomic-Scale Contacts.” ACS Nano. American Chemical Society, 2013. https://doi.org/10.1021/nn4007187.
S. V. Aradhya, M. Frei, A. Halbritter, and L. Venkataraman, “Correlating structure, conductance, and mechanics of silver atomic-scale contacts,” ACS Nano, vol. 7, no. 4. American Chemical Society, pp. 3706–3712, 2013.
Aradhya SV, Frei M, Halbritter A, Venkataraman L. 2013. Correlating structure, conductance, and mechanics of silver atomic-scale contacts. ACS Nano. 7(4), 3706–3712.
Aradhya, Sriharsha V., et al. “Correlating Structure, Conductance, and Mechanics of Silver Atomic-Scale Contacts.” ACS Nano, vol. 7, no. 4, American Chemical Society, 2013, pp. 3706–12, doi:10.1021/nn4007187.

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