Rp = 0.5 RHS
zpc = 0.45 RHS
RHS = 10
The diameter of the nanoparticle is 10 nm.
The unit cell spacing of the simple cubic lattice
is 1 nm × 1 nm × 1 nm.
N = 2415 "atoms"
The [100] crystal direction is normal to the substrate surface.
The time step used for the actual simulation is 7.11×10-14 s.
One animation frame is made after every five time steps. Ten animation
frames are displayed on your screen every second. Therefore, one second
of your time while you are watching this corresponds to 3.55×10-12 s.
The mode being excited here has a frequency of 13.7 cm-1
while has f = 4.11×1011 Hz. Its period is 2.43×10-12 s.
In this animation, it appears to vibrate at 1.46 Hz. The amplitude of the motion
here is highly exaggerated here for illustrative effect. A much smaller amplitude
is normally used in order to avoid nonlinearity. This situation corresponds to
Figure 3(a) in md40.htm.
Information about the image:
The animation is 68 frames in length.
frame delay: 0.1 s (10 frames per second)
file name = 40t.gif
file size = 360k bytes.
frame size = 170 × 170 pixels
Software:
C++ program to run simulation: cc3bdmp4.cpp
C++ program to create animated GIF image: scragif4.cpp
Note: Because of the large file size, this animation will not be posted on this site indefinitely.
Daniel Murray
Associate Professor
Math, Stats & Physics Unit
University of British Columbia - Okanagan
Kelowna, BC, Canada
daniel "dot" murray "at" ubc "dot" ca
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