Recent content by Rzbs

Thanks, so is it the same F 4- 3 m?

What does mean spinel structure has F d3m space group? I know F is for face centred cubic, 3 is 3-fold symmetry and m is mirror, but I don't know what means "d"?

We know cobalt is a magnetic material, it can attracted by magnet. Now if we want to know for example cobalt oxide (co3o4) has magnetic property or not what we should do? I mean is there a role to know bonding of cobalt with which elements results in magnetic property? or is there any online...

Thanks, so the Uganda water experiment is only a trick and a show for absorbing tourists, yes?

Is the Uganda water experiment (that shows corilios effect on water drain) a scientific experiment or not? I searched but I couldn't find a final answer to this question. There are two opposite opinions, which one is correct? Or this argument is an open issue yet? Thanks for your replies...

What is the best books about the history of solid state physics? I only found this: Out of the Crystal Maze: Chapters from the History of Solid State Physics by Lillian Hoddeson Are there any other books? Thanks for your suggestions

This is the thing I didn't consider and now help me to understand... Thanks for your explanation.

I know these things but I don't know why I can't relate these two facts to each other: small applied electric field and exclude interband transitions. Can you please explain what happens in this model if the applied electric field wasn't small? Thanks

Thanks but I can't understand why in this model we need to consider applied electric field small? I only know it must be small in comparison to amplitude of wave packet as shown in the following picture, but I don't know why (this picture is for showing wave vectors but it also shows amplitudes):

Why do we exclude interband transitions in semiclassical model of electton dynamics? I mean why it is an assumption in this model?

I am not sure where I must post this thread ... I want to know when this (see attached screenshot; infinite windows are creating!) happen in adobe connect? And why?

I think since the electron wave function is standing wave at BZ edge, v becomes zero;as this figure shows:

Thanks for your explanation. It is very helpful. Could you please introduce another book except Kittel that could help me to understand more? (because I study Ashcroft & Mermin by myself). ______ I have another question. I would be grateful if you have time to answer it, as you said: I don't...

I get this but I can't understand the following ____ I study Chapter 9 of Aschcroft & Mermin, electrons in weak periodic potential or nearly free electron approximation.

The two diagrams are about one thing and I think should be like each other. Maybe in the second one the charge careers are positive (I'm not sure because the book don't say anything about this).