Radio-Wave Oscillations of Molecular-Chain Resonators

被引：13

作者：

Muellegger, Stefan ^{[1
]}

Rashidi, Mohammad ^{[1
]}

Mayr, Karlheinz ^{[1
]}

Fattinger, Michael ^{[1
]}

Ney, Andreas ^{[1
]}

Koch, Reinhold ^{[1
]}

机构：

[1] Univ Linz, Inst Semicond & Solid State Phys, A-4040 Linz, Austria

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 11期

基金：

奥地利科学基金会;

关键词：

SCANNING-TUNNELING-MICROSCOPY; ATOMIC-FORCE MICROSCOPE; SYSTEMS; RADICALS;

D O I：

10.1103/PhysRevLett.112.117201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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. 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. Radiofrequency 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. Our study demonstrates a new strategy for investigating and controlling the resonance properties of nanomechanical oscillators.

引用

页数：5

共 28 条

[1]

[Anonymous], 2008, Introduction to Scanning Tunneling Microscopy

[2]

[Anonymous], 1992, Quantum Measurement

[3] ATOMIC FORCE MICROSCOPE [J].

BINNIG, G ;

QUATE, CF ;

GERBER, C .

PHYSICAL REVIEW LETTERS, 1986, 56 (09) :930-933

[4] Quantum electromechanical systems [J].

Blencowe, M .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2004, 395 (03) :159-222

[5] On the measurement of a weak classical force coupled to a harmonic oscillator: Experimental progress [J].

Bocko, MF ;

Onofrio, R .

REVIEWS OF MODERN PHYSICS, 1996, 68 (03) :755-799

[6] Coupled quantized mechanical oscillators [J].

Brown, K. R. ;

Ospelkaus, C. ;

Colombe, Y. ;

Wilson, A. C. ;

Leibfried, D. ;

Wineland, D. J. .

NATURE, 2011, 471 (7337) :196-199

[7] Laser cooling of a nanomechanical oscillator into its quantum ground state [J].

Chan, Jasper ;

Mayer Alegre, T. P. ;

Safavi-Naeini, Amir H. ;

Hill, Jeff T. ;

Krause, Alex ;

Groeblacher, Simon ;

Aspelmeyer, Markus ;

Painter, Oskar .

NATURE, 2011, 478 (7367) :89-92

[8] Nanoelectromechanical systems [J].

Craighead, HG .

SCIENCE, 2000, 290 (5496) :1532-1535

[9] The nonlinear physics of musical instruments [J].

Fletcher, NH .

REPORTS ON PROGRESS IN PHYSICS, 1999, 62 (05) :723-764

[10] Single virus particle mass detection using microresonators with nanoscale thickness [J].

Gupta, A ;

Akin, D ;

Bashir, R .

APPLIED PHYSICS LETTERS, 2004, 84 (11) :1976-1978

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