The best lectures..... crystal clear concept 😍

Iam lucky to find this jackpot of videos 😁😁🤗🤩

Amazing...Best resources for gate EDC ❤️❤️❤️

@clintrobby5615

10 ай бұрын

Hi..does this playlist cover entire edc

very good lecture.. Thank u sir

Thank you for explaining these concepts in very intuitive language. Your explanations serve to guide me when I read textbooks that going into detailed equation derivations.

amazing lecture sir...All the things got crystal and clear in my mind...I hugely appreciate ur good work 😊😊❤

very informative clear-cut explanations, and very thankful for the teaching Sir. I'm doing this entire course now.

this playlist is gem💎💎 , hats off to you sir , Jai shree ram

Physics and science in general is very proverbial based .

I am thinking why few people are disliking this lectures.

Where can we find reference book for this concept

so what is the differnce between optical band gap and electrical band gap

how can i get the diagram for valance band? here you has shown only for conduction band

Full playlist?

Except for the free electron case, hbark doesn't represent the real momentum of the electron rather a quantity which can be referred to as the pseudo momentum or the crystal momentum.

are these topics included in gate exam

thank you sir...

Awesome

Thank you so much

Thanku sir 🤗🙏

Thank you, professor. I would like to ask a question about introducing potential wells shape like Dirac potential at (6:41). why do we exhibit this as the shape of Dirac-like potential?

@Neeraj-is1jt

5 ай бұрын

Didn't understand your question please elaborate.

First 10 min goes over my head ...

@josephsagi3926

4 жыл бұрын

First 10 minutes are of previous lecture summary! So, if you couldn't understand you can ping me! I will help you with that 😊

1 no sir

Thank u sir

First of all a really thankyou for this amazing lecture And I have a doubt sir about effective mass that when electron moves in the periodic crystal it's experience different mass how is it possible to understand it. 2) since electron moves in periodic crystal that in all directions arrangement being the same so how the effective mass be anisotropic why not it should be isotropic

@carolleosamson2314

10 ай бұрын

Hi, to answer your first question, understand that electrons have thermal energy which contributes to atomic vibrations, that means electrons do move slightly because of collisions/scattering, that again disturbs the speed of electrons. Periodic potential is nothing but electrons experience some kind of resistance due to the potential they have(i.e, periodic potential), disturbing the speed/velocity/mobility of the electrons.

Lecture 3

Does the mass of electron becomes lighter when they move through the periodic structure??

@mohit_0435

4 жыл бұрын

That's what we call effective mass m*.

@PriyaYadav-zw4wy

3 жыл бұрын

Yeah it's can be higher or lower

@PriyaYadav-zw4wy

3 жыл бұрын

It depends on crystal structure

What is that potential well?

@chappan5615

3 жыл бұрын

Something pertaining to Quantum Potential Energy. Perhaps, going through QM will aid to it....

@ishantrivedi5588

3 жыл бұрын

@@chappan5615 acha

Sir..Thanks for the wonderful lectures.. Which book should I follow for basic E-K diagram and the subject?

@mohit_0435

4 жыл бұрын

Jb Gupta and Nagrath and kothari will give you motivation to read higher books like Millikan and heilkiyas.

@saicharanmarrivada5077

4 жыл бұрын

Donald Neamen book is very good for semiconductor devices

@ramtripathi1621

Жыл бұрын

@@mohit_0435 is Simon and sze good enough?

Why r we studying this?

@gautam4350

2 жыл бұрын

To understand how SC works!

too basic. Very little physics given