Correlation Histograms in Conductance Measurements of Nanowires Formed at Semiconductor Interfaces |
| M. Wawrzyniak a, J. Martinek b, B. Susła c and G. Ilnicki b
a Faculty of Electronics and Telecommunications, Poznań University of Technology, Piotrowo 3A, 60-965 Poznań, Poland, b Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland c Institute of Physics, Poznań University of Technology, Nieszawska 13A, 60-965 Poznań, Poland |
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| We demonstrate experimentally that conductance steps can occur in nanowires formed at metal-semiconductor junctions, between a cobalt tip and a germanium surface revealing long-duration plateaus at reproducible levels. The high reproducibility of the conductance traces obtained leads to very sharp peaks in the conductance histogram suggesting formation of stable atomic configurations. We develop a new type of correlation analysis of the preferred conductance values that provide new type of information on a few-atomic-nanocontact formation dynamics. |
| DOI: 10.12693/APhysPolA.115.384 PACS numbers: 68.65.-k, 79.60.Jv, 73.63.Rt |