Fermi energy Definition and 104 Threads

Hey! When we say that the fermi energy of a certain metal is for example 2 eV what are the 2 eV measure relative to? The top of the valence band? If so, wouldn't the fermi energy of a semiconductor at 0 K be 0 eV? Thanks

we have non relativistic electrons at absolute zero. we need to show that the total energy is 3N*Ef/5 where Ef is the Fermi energy. this calculation I can do. we then need to show that the Pressure is equal to 2U/3V where U is the total energy. I did this by noting the dU=TdS - PdV and at...

Hi, Hope somebody can help - I seem to be missing the obvious and bonking my head on the wall. In Wong and also in Feshbach/deShalit, they calculate the Fermi momentum, Kf using the experimental value of Rho-0 and come up with Kf=1.3 fm-1 So far so good. Where I stumble is in...

Ok, so here's the basic idea. You have a refrigerator, with four walls each 6ft x 2ft x 4in. The walls are made out of copper(high thermal conductivity), with a silicon chip at the center. This chip is connected to an inductor and is essentially a L-C oscillating circuit. As the chip heats up...