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 pretty well in many cases, describes
many important pro
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 Discovered in 1911 by Heike Kamerlingh Onnes - the resi
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 your references:
The interaction of radiation with matter
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/s, T = 3.081013 rad/s. Calculate the static
dielectric
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 that the effective mass of electron in Cu m* = m0, (m0
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. Knowing that
the density of Cu is 8.93 g/cm3 and atomic w
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 is 2.16103 kg/m3. Calculate the unit cell parameter (the
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), (200) and (211), given the wavelength of the monochrom
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 velocity in [111] direction is 18.6 km/s. The density of
diam