Recent content by qilong

Hi DrDu, I have browsed this book but little was found. Can you be more specific? Thank you very much!

I mean the X in the attached picture. This is from Mott's paper of the metal-semiconductor rectifying theory. He just said it varies a little and even did not mention what was its name.

Hi everyone, I am a student studying semiconductors and solid-state physics. I have a question which is haunting for several years. That is about the definition of electron affinity in solid-state physics. Its definition in solid state physics may be quite different from that in chemistry...

@mfb, Thanks, I've got it. Two plane wave can form a vortex-like wave which satisfies Maxwell equation. I have thought that the plane wave solution was the unique form. Attached are two plane wave solutions and another one is the superstition of them. From the plot you can see that two plane...

hmm...But I believe that the superstition of some plane waves cannot form a wave like this. 'cause that the phase factor is in the power part of exp. Even if a superstition cannot behave like this.

yes. I have check the magnetic field in the 3D case. The result shows that there is no need that the k vectors in these 3 components are the same. It is easy to verify this. And still I don't know where I got a mistake. Does the plot I attached seem unreasonable? Now I am a little skeptical...

Hi guys, I have a question when solving 3D Helmholtz equation derived from Maxwell equations. Normally I will get a plane wave solution. But when I used the method of separation variables for the three components Ex Ey and Ez, I found that the vector k in these three can be different as long...