There will be no problem on FETs.
There are a number of short problems that put emphasis on conceptual understanding and descriptions, as well as some longer problems where appropriate approximations are important. Sleep is good.
1. What essential aspect allows a semi-conductor to function as a semi-conductor?
--a gap and a malleable (easily move-able) chemical potential. you can dope it.
2. What is one essential key thing you need to understand to be able
to understand and model inhomogeneous semi-conductor systems like junctions and FETs?
--band bending
3. What essential characteristics do metals manifest?
--a Fermi boundary (inside which essentially all states are filled). Very quantum. Pauli exclusion plays a big role.
4. Why are some metals weird?
--electron-electron interactions can make metals do strange things. Unusual collective behavior, for example ferromagnetism, anti-ferromagnetism in Mott-Hubbard insulators and superconductivity, results from electron interactions.
(Normal metal are sometimes unstable. What is the origin of instability.)
--e-e interaction
No comments:
Post a Comment