ECE Purdue Semiconductor Fundamentals L2.4: Quantum Mechanics - Electron Waves in Crystal

[@DW-iq8lt]

1:43 Electrons in atoms, 2:07 Electrons in crystal, 4:08 E-k curve with crystal potential, 4:28 Brillouin zone, 6:08 Crystal momentum, 7:45 Bandstructure, 8:52 Parabolic approximation, 11:28 E(k) for electrons in Si, 12:34 Constant energy surfaces, 14:26 Model bandstructure for Si, 15:45 Model bandstructure for GaAs, 17:11 Model bandstructure for graphene

[@jenny-ht7ng]

great lectures

[@mohsentamtaji9130]

Great talk. Thanks

[@fmazzelli5264]

Great lectures. I got confused with the definition of the momentum. What is the definition of momentum for a free particle and what is the definition of crystal momentum?

[@scienceisall2632]

The secrets of the universe

[@unnikrishnanms3431]

So it means electrons in valence band also travel as waves throughout the crystal ?

[@BlackRockExecutive]

At 4:10, it was mentioned that we can solve the wave equation to obtain the periodic parabolic graph. Is it referring to the Kronig-Penney Model? Or at least is that the simpler alternative to solve the wave equation?

[@泠然御風]

[@magnuswootton6181]

TURBOENCABULATOR!!!

[@yaboihitbox9894]

Deez nuts