Quote:
Originally Posted by SPUCK
A nanometer(nm) is 0.000,000,001 meters.
An Angstrom is 1/10 of a nanometer. A silicon crystal has a nucleus to nucleus spacing of 5 Angstroms. Or 0.5nm.
So an "atomic layer" is about 0.5nm.
40 atomic layers ~ 20nm.
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0.54 nm is the lattice parameter, not the nucleus to nucleus distance of adjacent atoms
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It's probably what they meant by 'atomic layer' but not technically correct.
The Gravity Balls were quartz, lattic parameter 0.49 nm.
X-ray diffraction is my main occupation now, I can do a 'can you tell what it is yet' of diffraction patterns if you like.
