Recent content by FoggyNight

It turns out it isn't particularly complicated. I was thrown off by a solution sheet which turned out to be wrong, but I figured it out. What you need to do is take v=ω/k=2πf/k which is 2π by the slope. So say you choose for the LA to go up from 0.25 on the k axis when you hit the LA line it's 2...

Acoustic Wave Velocities in Brillouin Zone - Phonon Spectrum of Ge Homework Statement Acoustic Wave Velocities in Brillouin Zone - Phonon Spectrum Diagram The exact problem I'm stuck on is Q3c on this exam paper. I have included an image of the problem below. I haven't had any trouble up...