Hertz to MeVs

1. Apr 13, 2008

msimmons

When considering a vibrating silicon atom.
I'm just not sure how to do the conversion

2. Apr 13, 2008

rock.freak667

MeV is mega-electron volts which is equivalent to Joules or energy. So you can't convert frequency to energy.

3. Apr 13, 2008

msimmons

I know, not directly, but I'm looking for a relation that's something along the lines of $$E=\hbar\omega$$ but I don't know of any.

Essentially, I'm going from a unitless/normalized frequency of 2 to 80 mevs using $$\omega=2\sqrt{K_i/M}$$ where $$K_i$$ is 10.6 $$eV/\AA^2$$ and M is the mass of silicon. I should get approximately 80 mevs.. Not sure how I get there. I got to 1/s easily by using the mass of silicon in mevs/c^2 but that's about it