ECNG 5210
HW3: The periodic potential, crystalline structure
Due 2-24-2015
1- Imagine a bead of mass m that slides frictionlessly around a circular wire ring of circumference a.
(This is just like a f
ECNG 5210
HW4: Crystalline structure, the free electron gas
Due 3-3-2015
1- The face-centered cubic is the most dense and the simple cubic is the least dense of the
three cubic Bravais lattices. The d
ECNG 5210
HW2: Introduction to quantum mechanics
Due 2-17-2013
1- (This is a qualitative problem, no calculations are required) Consider the 1-D potential shown in
Fig. 1-a below:
(a) Which of the thr
ECNG 5210
HW1: Introduction to quantum mechanics
Due 2-10-2015
1- What are the units of the wave function ? (Notice the dependence on dimensionality).
2- A particle of mass m has the wave function ( x
Advanced Solid State Devices
AUC ECNG 5210
Tarek K. Ghanem
Lecture 2
Introduction to QM
Boundary conditions
(r ) 0,
as
r
Except for free particles
(r )
Is always continuous
(r )
Is always continuou
Advanced Solid State Devices
AUC ECNG 5210
Tarek K. Ghanem
Lecture 4
Crystalline structure
Directions in a lattice
A direction in a lattice is expressed as the ratio of the three unit vectors
a1, a2 a
Advanced Solid State Devices
AUC ECNG 5210
Tarek K. Ghanem
Lecture 1
Course contents
Introductory atomic and quantum physics
Energy bands and charge carriers in solids, semiconductors
Carrier concentr
Advanced Solid State Devices
AUC ECNG 5210
Tarek K. Ghanem
Lecture 3
Introduction to QM
1-D examples: The periodic potential
For a general periodic potential
V(l+x) = V(x) , it can be proven that
any