GHz nanomechanical resonator in an ultraclean suspended graphene p-n junction

Nanoscale
Minkyung JungChristian Schönenberger

Abstract

We demonstrate high-frequency mechanical resonators in ballistic graphene p-n junctions. Fully suspended graphene devices with two bottom gates exhibit ballistic bipolar behavior after current annealing. We determine the graphene mass density and built-in tension for different current annealing steps by comparing the measured mechanical resonant response to a simplified membrane model. In a graphene membrane with high built-in tension, but still of macroscopic size with dimensions 3 × 1 μm2, a record resonance frequency of 1.17 GHz is observed after the final current annealing step. We further compare the resonance response measured in the unipolar with the one in the bipolar regime. Remarkably, the resonant signals are strongly enhanced in the bipolar regime.

References

Dec 14, 2006·Nano Letters·Benoit WitkampHerre S J van der Zant
Jan 27, 2007·Science·J Scott BunchPaul L McEuen
Apr 12, 2008·Nano Letters·D Garcia-SanchezA Bachtold
Apr 22, 2009·Proceedings of the National Academy of Sciences of the United States of America·Mingyuan HuangJames Hone
Jun 23, 2009·Science·A K Geim
Nov 7, 2009·Nature Nanotechnology·Changyao ChenJames Hone
May 17, 2011·Nature Nanotechnology·A EichlerA Bachtold
Aug 15, 2012·Nano Letters·Robert A BartonHarold G Craighead
Aug 16, 2013·Nature Communications·Peter RickhausChristian Schönenberger
Apr 20, 2014·Nano Letters·Tengfei MiaoMarc Bockrath
Jul 26, 2014·Physical Review Letters·X SongM A Sillanpää
Apr 23, 2016·Physical Review Letters·R A NorteS Gröblacher
Jun 14, 2016·Nature Nanotechnology·John P MathewMandar M Deshmukh
Aug 10, 2016·Nature Communications·P WeberA Bachtold
Oct 6, 2016·Nano Letters·Minkyung JungChristian Schönenberger
May 17, 2017·Nature Nanotechnology·Johannes GüttingerAdrian Bachtold
Jun 13, 2017·Nature Nanotechnology·Y TsaturyanA Schliesser
Apr 14, 2018·Science·A H GhadimiT J Kippenberg

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Citations

Jun 23, 2020·Physical Review Letters·Konstantinos TsoukalasSøren Stobbe
Apr 3, 2021·Nano Letters·Jens SonntagChristoph Stampfer
Oct 7, 2021·Nano Letters·Qing-Hang ZhangGuo-Ping Guo

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