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Bands; Free Electron Approximation, Tight Binding Approximation 

nptelhrd
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30 окт 2024

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Комментарии : 34   
@razz6475
@razz6475 4 года назад
Honestly you're a gift to this world. So much of clarity. Thank you Sir. Respect 🙏
@pradeepsharma_1962
@pradeepsharma_1962 10 лет назад
A fantastic video due to its most clear approach.Many thanks to teacher giving the lecture.Sir ,I salute you.
@saadrabbani1
@saadrabbani1 8 лет назад
I am highly grateful to you sir, made my concepts of physics of materials much much better in your series of courses.!:)
@nimishadutta1083
@nimishadutta1083 10 лет назад
Thankyou Sir, for imparting it to us so well.
@amara8698
@amara8698 6 лет назад
Thank you Professor Haridoss and Thank you NPTEL
@gauthambekal235
@gauthambekal235 6 лет назад
I went ahead and forgot I had not liked the video so came back!
@ritunain2803
@ritunain2803 3 года назад
same here..i liked each and every comment...
@ashwin2112
@ashwin2112 7 лет назад
And today I understood that my 12th std physics textbook tried to teach both of these models without even mentioning them in jumbled fashion. Oh, how it was confusing.!!!
@instrukcijekoper7433
@instrukcijekoper7433 6 лет назад
Your classes are gold. Thank you sir.
@ankitlabh
@ankitlabh 4 года назад
He is a good teacher
@neetu1466
@neetu1466 4 года назад
When overlapping of bands is occuring , since still there is forbidden gap then how electrons can easily move to upper level ? May b i m not visualising it correctly so please help me .
@sachleensingh56
@sachleensingh56 3 года назад
These are just schematics. In actual metals electrons with conduction band energy are free(not bound to their cores) which is not the case with electrons with valence band energies.
@ghulammohiudinganaie6556
@ghulammohiudinganaie6556 3 года назад
@@sachleensingh56 since excusion principle is applicable to atoms why is prof applying it to combined solid...
@elamvaluthis7268
@elamvaluthis7268 3 года назад
Sincere teaching excels.
@pradipamarandi6469
@pradipamarandi6469 4 года назад
Well explained sir...thank u
@mrinmoymandal2695
@mrinmoymandal2695 6 лет назад
How the mettalic bands overlap in the distortion curve where there is always a gap??plzz xplain anyone (15:25)
@PhysicsMath
@PhysicsMath 6 лет назад
Uper band is half field called conductor band. there is a gap but we are not interested . Because for conducting current the electron not come from valancy band but from conducting band. Conducting band is not fully field
@PhysicsMath
@PhysicsMath 6 лет назад
why half field ? why don't full filled? . imagine water in tank so if you give a different it always go from higher to lower potential , if it is completely filed for increasing or decreasing we have to cross the forbiden gap which required greater energy..
@Thenewgreenmaju
@Thenewgreenmaju 9 лет назад
Excellent!!!
@keag2425
@keag2425 4 года назад
Thanks alot
@ranayousaf5091
@ranayousaf5091 3 года назад
Sir book refer ki Jaya ga in topic ki
@ramashish7695
@ramashish7695 5 лет назад
Very nice vidio
@anniemshaji2698
@anniemshaji2698 2 года назад
21:00
@hal5720
@hal5720 2 года назад
20:58
@mecsumit
@mecsumit 12 лет назад
Super !!!
@philipgautschi
@philipgautschi 8 лет назад
nice explentaion :
@meeehc
@meeehc 12 лет назад
i thought i knew english....
@bagdatzhunisbekov
@bagdatzhunisbekov 12 лет назад
oooo
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