The 66th JSAP Spring Meeting, 2019

Presentation information

Poster presentation

12 Organic Molecules and Bioelectronics » 12.2 Characterization and Materials Physics

[9p-PA6-1~9] 12.2 Characterization and Materials Physics

Sat. Mar 9, 2019 4:00 PM - 6:00 PM PA6 (PA)

4:00 PM - 6:00 PM

[9p-PA6-8] Single Molecule Conductance Measurements under High Temperature in Vacuum

〇(D)Bo Liu1, Makusu Tsutsui1, Masateru Taniguchi1 (1.Osaka Univ. ISIR)

Keywords:Single molecule, High temperature, Contact mechanics

Single molecule conductance is measured under high temperature by immersing the MCBJ electrodes into a molecule-filled container and then pulling the electrodes apart until tunneling conditions are established. Current traces recorded while the junction is stretched reveal plateaus below 1G0 due to the formation of single-molecule junctions between electrodes.
Conductance histograms made from thousands of traces reveal a well-defined peak that agrees well with previous measurements in ambient conditions and allows an unambiguous measurement of single molecule conductance in vacuum from room temperature(300K) to 420K. A temperature caused conductance differences occurs by anaslying histogram data and it might reveal a unique contacting mechanism in high temperature environments.