Consider a two-dimensional hexagonal lattice:
(a) Draw the free electron Fermi surface in the reduced zone
scheme when the lattice points are occupied by atoms with: i. One
valence electron/atom. ii. Two valence electrons/atom.
Consider a two-dimensional hexagonal lattice:
(a) Find Fermi wave vector of the free electron circular Fermi
surface in reciprocal space. (b) Draw the free electron Fermi
surface in the reduced zone scheme when the lattice points are
occupied by atoms with: i. One valence electron/atom. ii. Two
valence electrons/atom
Consider a two-dimensional hexagonal lattice:
(a) Find Fermi wave vector of the free electron circular Fermi
surface in reciprocal space.
(b) Draw the free electron Fermi surface in the reduced zone
scheme when the lattice points are occupied by atoms with:
i. One valence electron/atom.
ii. Two valence electrons/atom.
Why does classical physics seem more intuitive to us than
modern physics does
Relativistic quantum mechanics is the best theory that we have
in physics. What does it describe
What are the four fundamental physical quantities?
How are fundamental units different from derived
units
What are three advantages of the metric system?
By how many orders of magnitude do the diameter of the sun and
the diameter of an atom differ?
Why are aldehydes usually more reactive than ketones? Why are
ketones more reactive than esters, and ester more reactive than
amides? Please help explain with the help of steric, indcutive and
resonance effects. Show an example for each class of compounds
please. Thank you!
Is there any free electron or hole in silicon crystal at
absolute zero (0K)? Why?
Is there any free electron or hole in silicon crystal at room
temperature? Why?
What is thermal generation? What is recombination?
What is bandgap energy?
What is the bandgap energy of Silicon and diamond,
respectively?
More energy is required to remove an electron from a bromine
atom than from an iodine atom. This can be attributed due to:
A. The valence electrons of a bromine atom are in the same
energy level as those of an iodine atom.
B. The valence electrons of a bromine atom are in a higher
energy level than those of an iodine atom.
C. The valence electrons of a bromine atom are in a lower energy
level than those of...