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Diamond membrane surface after ion implantation induced graphitization for graphite removal: molecular dynamics
 

Summary: Diamond membrane surface after ion implantation induced
graphitization for graphite removal: molecular dynamics
simulation
Amihai Silverman
Taub Computer Center, Technion-IIT, Haifa 32000, Israel
Joan Adler
Department of Physics, Technion-IIT, Haifa 32000, Israel
Rafi Kalish
Department of Physics and Solid State Intitute, Technion-IIT, Haifa 32000, Israel
(Dated: February 14, 2011)
Abstract
Fabrication of diamond membranes, wherein photonic crystals and other nano-sized optical de-
vices can be realized, is of great importance. Many spintronic devices are based on specific optically
active atomic structures in diamond such as the NV (nitrogen vacancy) center, and rely on the
membrane's performance. One promising approach to realize such membranes is by creating a heav-
ily damaged layer (rich in broken bonds) in diamond by ion-implantation. Following annealing,
this layer converts to graphite which can be chemically removed, leaving a free standing diamond
membrane. Unfortunately, the optical properties of the exposed diamond surface (the diamond-
vacuum interface) of such membranes, are, currently, insufficient for high quality photonic devices.
We present Molecular Dynamics studies of the atomic structure of the etchable graphite/diamond

  

Source: Adler, Joan - Physics Department, Technion, Israel Institute of Technology

 

Collections: Physics