Phys 446 Solid State Physics
Lecture 7
(Ch. 4.1 4.3, 4.6.)
Electrons in metals: free electron model
Simplest way to represent the electronic structure of metals
Although great simplification, works
Phys 446
Solid State Physics Lecture 11 (Ch. 10)
Nov 25
Superconductivity is a phenomenon occurring in certain materials at low temperatures, characterized by exactly zero electrical resistance p y y
Phys 446
Solid State Physics
Lecture 11
(Ch. 11)
11)
Nov 29
The interaction of radiation with matter
Magnetic properties of materials
Materials equations
D = ( ) E
EM wave
j = ( ) E
Lecture 11
For you
PHYS 446 Fall 2007
Homework Assignment 4
Due Nov 2
1. NaCl has a high-frequency value of the optical index of refraction 1.5 and longitudinal and
transverse optical phonon frequencies L = 5.01013 rad/
PHYS 446 Fall 2007
Homework Assignment 5
Nov 9th
(COVERS ALL METALS: Lectures 7 and 8)
1. Copper has a mass density = 8.95 g/cm3, and electrical resistivity 1.5510-8 ohmm at room temperature. Assuming
PHYS 446 Fall 2010
Homework Assignment 6
Due (before the Final Exam)
EXTRA CREDIT / Make up for the missed HWs
1. The diamagnetic susceptibility due to the ion cores in metallic copper is 0.2010-6. Kn
Solid State Physics
Phys 446:
Lecture 6
Last week:
(Ch. 3)
Phonons, Einstein and Debye models, QZ1 results
Solid State Physics / Optical
Properties
Today:
Lattice vibrations:
optical properties and
PHYS 446 Fall 2007
Homework Assignment 1
(5 problems)
Due Sept 21
1. a) Using Table 1.2 from Omar (below), calculate the densities of the following solids: Al, Fe, Zn,
and Si. b) The density of NaCl i
PHYS 446 Fall 2007 Homework Assignment 2 Due Sept 28th
1. The edge of a unit cell in a cubic crystal is a = 2.62 . Find the Bragg angle corresponding to reflection from the planes (100), (110), (111),
PHYS 446 Fall 2007
Homework Assignment 3
Due Oct 12th
1. The longitudinal and transverse sound velocities in diamond along [100] direction are 17.6 and 12.8
km/s, respectively. The longitudinal veloci