At 4:34, the a on the end of two, does the stand for angstrom? or am i being delusional and you've already explained what that is. Is a the displacement wave of the particle shown at 3:54?
Happy to help, recommend closed captioning! Also, it's designed to be watched twice, once for qualitative content, and then once again worry about the math (that's why it's so fast). Glad you found it useful! Eric
Too rushed, please take more time or else it's nearly impossible to understand. These videos are sadly only useful to get back into the material but not if you are learning it the first time.
Thank you for the wonderful video! Life saver for material science students!
Thanks so much for making this. You saved me on my last exam.
Really nice, but also extremly fast.
I like it! So easy to rewind and pause
Agreed, too fast for an "introduction"
nice, now I really understand phonons
Wow! :) I haven't seen physics videos for explaining solid state! :) Thank You!
You guys are amazing!
Shock velocity in Eulerian and Lagrangian frames
tnx, it was much better than kittel
i hope god keep this vidoes going
thanks, much better to understand !
what about Phonons though?
How do you get equation 4.9?
Polyriddim
At 4:34, the a on the end of two, does the stand for angstrom? or am i being delusional and you've already explained what that is. Is a the displacement wave of the particle shown at 3:54?
a is the interatomic spacing
This is amazing and it def saved me for my final exam but its sooo fast i had to slow it down :(
Happy to help, recommend closed captioning! Also, it's designed to be watched twice, once for qualitative content, and then once again worry about the math (that's why it's so fast). Glad you found it useful! Eric
in eqauation 4.6 a is the distance between atoms? this comes from X_n - X_n-1?
From my understanding its the sum in displacement between (Xn-1)-(Xn) AND (Xn)-(Xn+1) ... 4 years later lmao
Me: freaking out rn cuz im giving a presentation on debye model of solid
also me: 👁👄👁
Too rushed, please take more time or else it's nearly impossible to understand. These videos are sadly only useful to get back into the material but not if you are learning it the first time.
The sexual tension here is unbearable