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Researchers at Johannes Kepler University Have Reported New Data on Physics

June 24, 2014

By a News Reporter-Staff News Editor at Physics Week -- New research on Physics is the subject of a report. According to news reporting originating in Linz, Austria, by VerticalNews journalists, research stated, "We report a new type of nanomechanical resonator system based on one-dimensional chains of only 4 to 7 weakly coupled small molecules. Experimental characterization of the truly nanoscopic resonators is achieved by means of a novel radio-frequency scanning tunneling microscopy detection technique at cryogenic temperatures."

The news reporters obtained a quote from the research from Johannes Kepler University, "Above 20 K we observe concerted oscillations of the individual molecules in chains, reminiscent of the first and second eigenmodes of a one-dimensional harmonic resonator. Radio-frequency scanning tunneling microscopy based frequency measurement reveals a characteristic length dependence of the oscillation frequency (between 51 and 127 MHz) in reasonable agreement with one-dimensional oscillator models."

According to the news reporters, the research concluded: "Our study demonstrates a new strategy for investigating and controlling the resonance properties of nanomechanical oscillators."

For more information on this research see: Radio-wave oscillations of molecular-chain resonators. Physical Review Letters, 2014;112(11):117201. (American Physical Society -; Physical Review Letters -

Our news correspondents report that additional information may be obtained by contacting S. Mullegger, Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz, 4040 Linz, Austria. Additional authors for this research include M. Rashidi, K. Mayr, M. Fattinger, A. Ney and R. Koch.

Keywords for this news article include: Linz, Europe, Austria, Physics.

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Source: Physics Week

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