Date of download: 10/8/2017 Copyright © ASME. All rights reserved. From: Tunable Gigahertz Oscillators of Gliding Incommensurate Bilayer Graphene Sheets J. Appl. Mech. 2013;80(4):040906-040906-4. doi:10.1115/1.4024170 Figure Legend: (a) Schematics of the graphene oscillator. Oscillatory motion is in the X direction. Right (purple) sheet is the top graphene layer and the left (blue) one is the bottom layer which is fixed during the simulations, both have length a and width b. (b) Energy profile of the oscillator with varying displacement of the top sheet in the XY plane. The top and right panels show the energy curves along the horizontal (yellow) and vertical (blue) lines in the energy profile, respectively (see online version for color).