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This content was taken from https://ecee.colorado.edu/~bart/book/contents.htm.In that they derive the diffusion current expression from this particular carrier...
Asked on 11/02/2020 by K Sreerag
1 answerAs the title says. It is common sense that sharp things cut, but how do they work at the atomical level? ...
Asked on 10/31/2020 by wtoh
3 answerThe image below shows the shape of a fermi surface of Cr metal measured by Angle resolved photo emission spectroscopy. (not important) Question is why does the fermi surface shrinks...
Asked on 10/31/2020 by el psy Congroo
1 answerI was reading Cambridge lecture notes on Statistical physics, and I came across this equation where they used some technique of expansion which honestly I couldn't understand how. So my...
Asked on 10/31/2020 by Marouane Elouali
0 answerIn the weak field limit, gravitational radiation can be treated by the linearized theory and then its properties are very much like those of electromagnetic radiation, except we are dealing...
Asked on 10/31/2020 by Andrew Steane
2 answerI have read about this: Essentially in an insulators there is a big energy gap between the (valence) and the conduction band which is why there aren't many free...
Asked on 10/30/2020 by Faheem Azeemi
2 answer(It's not really shown in the pictures, but please assume that the coils are included in a closed circuit in both configurations. Maybe they could serve as a tension source...
Asked on 10/30/2020 by Gabel Luc
1 answerThere is a paper (PhysRevB.95.014435) in which the dispersion relation for some Heisenberg model on the honeycomb lattice is derived from the Landau-Lifshitz equation:begin{align}frac{d S_i}{dt} = -...
Asked on 10/30/2020 by Leviathan
0 answerI have a rough idea, but would like a more precise distinction....
Asked on 10/30/2020 by TheoreticalMinimum
0 answerI am following an example in the book "Electromagnetic Waves and Antennas" by S. Orfanidis. He has two planes waves incident on both sides of a boundary. Here, $k_{pm}...
Asked on 10/30/2020 by pmac
1 answerGet help from others!
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