993 citations · 1.8k across the 8 of their papers we have counts for
8 papers
SU-8 clamped CVD graphene drum resonators
Sunwoo Lee, Changyao Chen, Vikram V. Deshpande +8
Graphene mechanical resonators are the ultimate two-dimensional nanoelectromechanical systems (NEMS) with applications in sensing and signal processing. While initial devices have…
Graphene mechanical oscillators with tunable frequency
Changyao Chen, Sunwoo Lee, Vikram V. Deshpande +4
Oscillators, which produce continuous periodic signals from direct current power, are central to modern communications systems, with versatile applications such as timing reference…
Self-sustained micromechanical oscillator with linear feedback
Changyao Chen, Damián H. Zanette, Jeffrey R. Guest +2
Autonomous oscillators, such as clocks and lasers, produce periodic signals \emph{without} any external frequency reference. In order to sustain stable periodic motions, there need…
Modulation of mechanical resonance by chemical potential oscillation in graphene
Changyao Chen, Vikram V. Deshpande, Mikito Koshino +5
The classical picture of the force on a capacitor assumes a large density of electronic states, such that the electrochemical potential of charges added to the capacitor is given b…
Direct observation of coherent energy transfer in nonlinear micro-mechanical oscillators
Changyao Chen, Damián H. Zanette, David Czaplewski +2
Energy dissipation is an unavoidable phenomenon of physical systems that are directly coupled to an external environmental bath. The ability to engineer the processes responsible f…
Radio frequency electrical transduction of graphene mechanical resonators
Yuehang Xu, Changyao Chen, Vikram V. Deshpande +6
We report radio frequency (rf) electrical readout of graphene mechanical resonators. The mechanical motion is actuated and detected directly by using a vector network analyzer, emp…
Performance of Monolayer Graphene Nanomechanical Resonators with Electrical Readout
Changyao Chen, Sami Rosenblatt, Kirill I. Bolotin +6
The enormous stiffness and low density of graphene make it an ideal material for nanoelectromechanical (NEMS) applications. We demonstrate fabrication and electrical readout of mon…
Raman Spectroscopy of Graphene under Uniaxial Stress: Phonon Softening and Determination of the Crystallographic Orientation
Mingyuan Huang, Hugen Yan, Changyao Chen +3
We present a systematic study of the Raman spectra of optical phonons in graphene monolayers under tunable uniaxial tensile stress. Both the G and 2D bands exhibit significant red…