Snap-through transition of graphene membranes for memcapacitor applications: A combined study using MD, DFT and elasticity theory
arXiv:1707.07639 · doi:10.1038/s41598-018-21205-3
Abstract
Using computational and theoretical approaches, we investigate the snap-through transition of buckled graphene membranes. Our main interest is related to the possibility of using the buckled membrane as a plate of capacitor with memory (memcapacitor). For this purpose, we performed molecular-dynamics (MD) simulations and elasticity theory calculations of the up-to-down and down-to-up snap-through transitions for membranes of several sizes. We have obtained expressions for the threshold switching forces for both up-to-down and down-to-up transitions. Moreover, the up-to-down threshold switching force was calculated using the density functional theory (DFT). Our DFT results are in general agreement with MD and analytical theory findings. Our systematic approach can be used for the description of other structures, including nanomechanical and biological ones, experiencing the snap-through transition.
References in corpus (15)
- Memory effects in complex materials and nanoscale systems
- Thermal Conductivity and Thermal Rectification in Graphene Nanoribbons: a Molecular Dynamics Study
- Young's modulus of Graphene: a molecular dynamics study
- Memcomputing: a computing paradigm to store and process information on the same physical platform
- Coupling graphene mechanical resonators to superconducting microwave cavities
- Critical slowing down in purely elastic `snap-through' instabilities
- Visualizing the motion of graphene nanodrums
- Dissipative optomechanical preparation of macroscopic quantum superposition states
- Electromechanical Oscillations in Bilayer Graphene
- Qubit-based memcapacitors and meminductors
- Graphene Ripples as a Realization of a Two-Dimensional Ising Model: A Scanning Tunneling Microscope Study
- Memcomputing with membrane memcapacitive systems
- Thermo-mechanical characterization of on-chip buckled dome Fabry-Perot microcavities
- Critical radius and temperature for buckling in graphene
- Buckled Diamond-like Carbon Nanomechanical Resonators