Recent content by leftbank007

Hi, I have a problem of integration in Matlab. I want to integrate the following equation: y=x/(exp(x)-1) and x is from 0 to 1. I use int(y,0,1), but it seems that it does not give correct result. Could you help me how to do it in Matlab? Thanks!

for example, in GaAs, the LA phonon lifetime can be ~850 ns, while LO phonon lifetime is only about 5 ps. Why such huge difference occurs? Thanks!