Physics 123A,B Condensed Matter Physics

Fall - 2007, Winter 2008

http://www.iqcd.ucsb.edu/~sjallen/123/

>>>>>>>>>>>>>>>>>>> Homework assignments are found at Winter 2008 Phy123B Homework.

>>>>>>>>>>>>>>>>>>>Class notes by date are found at Notes Winter 2008

 

                                                                             123B Winter 2008


Prof. S. James Allen
    allen@iqcd.ucsb.edu (Put Physics 123 in the subject line please)
    Broida 4105
    Office Hours: Tuesday and Thursday 11-12 Broida 4105 or by appointment.

TA:  SungBin Lee
sungbin@physics.ucsb.edu
Broida 6216
       Office Hours in the Physics Study Center .............. Tuesday: 8:30-9:30
                                                                                        Friday: 8:30 - 10:30
 

Lectures 123B: 9:30 - 10:45 AM, Tuesday, Thursday, HSSB 3202
Discussion 123B 4:00-4:50 PM, HSSB 1227 (Led by SungBin Lee)

           Faculty Assistant: Barbara Merlo
                  Office: Broida Hall 4118 (805) 893-2627 bam@physics.ucsb.edu
                  Office Hours: 8:00 am - 12:00 noon, 1:00 pm - 5:00 pm

PREREQUISITES: Phys 115A with a C- or  higher.      

TEXTS:

"Solid-State Physics: An introduction to Principles of Materials Science", H. Ibach and H. Luthi (3rd English Edition) 2003
"Solid-State Physics: An introduction to Principles of Materials Science", H. Ibach and H. Luthi (2nd English Edition) 1996
"Introduction to Solid State Physics", C. Kittel 2005 edition, 8th edition
"Solid State Physics", Ashcroft and Mermin, 1976
"Introduction to Superconductivity", Tinkham, 1996

CONTENT:

123A Fall 2007
              Insulators:                    Lattice dynamics, heat capacity, thermal conductivity, dielectric constant, optical properties (Bose distributions)
             "Free electron" metals:  Boltzmann transport, electrical conductivity, magneto transport, heat capacity, thermal conductivity optical properties , quantum Hall effect, (Fermi distributions)
             

123B Winter 2008
              Electron states:           Energy bands, energy band gaps, semiconductors, effective masses, electron and holes, optical properties, doping
              Magnetism:                Paramagnetism, ferromagnetism - FMR and spin waves, antiferromagnetism - spinwaves, mean field approximation
              Superconductivity:      Macroscopics, microscopics, supercurrents - critical currents, flux quantization, tunneling         

 HOMEWORK, TESTS AND GRADES:  Your grade will be based on homework, one or two midterms, and a final exam. 
                                Homework will count 30% of your grade, midterms  25%, and final exam 50%.  Yes- total = 105%.

Take note please:  There will be no make-up exams. Consultation with Prof. Allen before the exam will almost certainly lead to your being excused from the midterm or final.   If you are excused from a midterm, your grade will be based on the remaining exams and homework. If you are excused from the final, you will receive an incomplete for the course. If you miss an exam without being excused you will receive a zero for that exam.  

. This course will not be graded on the curve.  That is to say, the table below is absolute and will not be skewed up or down.

FYI
Distribution of grades
for 123B

FYI
Distribution of grades for 123A
 Course grade Percentage needed for this grade
4
6
 A+ 97%
1
4
 A 92%
1
0
 A- 90%
1
0
 B+ 87%
3
 B 82%
0
 B- 80%
0
 C+ 77%
1
 C 72%
0
 C- 70%
1
1
 D 60%
2
 F less than 60%
0
 Incomplete  

Plan

Date
Topic
Sub-Topic
Ibach
Kittel, 8th Edition
Ashcroft and Mermin

Tinkham,
"heavy duty"

8 January Semiconductors          
   
Electrons in weak periodic potentials  1D 
Band gaps
  167-172 159-  
   
Electrons in weak periodic potentials  1D 
Effective masses
57, 161-169   156-159  
   
Electrons in weak periodic potentials  1D 
Counting states band filling
 391-396

200-205, 180-182,

86-94  
   

3D periodic structures
Counting states band filling

 391-396 202-205 161-169  
   
Doping
 400-404 209-214 590-592  
   
Absorption of light
367-376 429-440, 187-189, 195,    
   
p-n Junctions,hetero, Schottky
415-428 503-506 592-600  
   
LED's and laser diodes
453-458 510-512    
  Magnetism          
    Insulator parmagnetism   302-305 653-661  
    Antiferromagnetic exchange, Heisenberg exchange, Hubbard model , t*t/U

See: Notes 12 Feb.

Also: "Solid State Physics, problems and Solutions" Mihaly and Martin 96-97, 233-236 		  685  
   

Strong periodic potential
Tight binding bands

169-175 232-235 176-186  
   
Mott transition
  407-409 187  
   
Mean field theory
Neel point
 211-215 340-344 723-724  
   
Spin waves, magnons
215-219 344-345, 330-335 704-709  
   
Band model of Ferromagnetism
201-204 329-330    
   
Mean field theory
Curie point
205-208 323-329 712-718  
  Superconductivity          
   

Mean field theory
BCS ground state

 280-288 277-279 739-743  
   
Mean field thoery
Energy gap, order parameter
280-288      
   
Excitation spectrum,
Density of states
288-293     67-71
   
Zero resistance and the Meissner
267-272 259-264 726-730, 731-734 1-6
   
London equations
Zero resistance
 272-274      
   
London equations
Meissner effect
272-274 273-277 737-739, 746-747  

 

 

 

123A Fall 2007

>>>>>>>>>>>>>>>>>>> Homework assignments are found at Fall 2007 Phy123A Homework.

>>>>>>>>>>>>>>>>>>>Class notes by date are found at Notes Fall 2007

13  December                         Final Exam - Take home exam
                                                                      available on the web at noon on December 13
                                                                      due back on the 14th of December at 4PM in Broida 4105.

                                                 Please note that the exam is to be done without communication, verbal or otherwise, with any body elese.
                                                                      Receiving or transmitting info about the exam will result in an 0 for the final.

Please read the first page of the Refereshed Final Exam

                                                   Solutions to the final.

 

SCHEDULE OF LECTURES (Rough), EXAMS (Precise):

29  October                             Mid term - Insulators
                           Solutions to midterm


13  December                         Final Exam - Take home exam
                                                                      available on the web at noon on December 13
                                                                      due back on the 14th of December at 4PM in Broida 4105.

                                                 Please note that the exam is to be done without communication, verbal or otherwise, with any body elese.
                                                                      Receiving or transmitting info about the exam will result in an 0 for the final.

Unless noted pointers are to Ibach

Insulators - Lattice Dynamics
Balls and springs 4.3 29-Sep
Continuum elastic properties 4.5 -
Insulators -Thermal properties
Heat capacity 5.0 - 5.3   Kittel, Chap 5 8-Oct
Bose-Einstein distribition 5.2          Kittel, Chap 5
Thermal conductivity 5.6 -           Kittel, Chap 5 , Appendix F
Insulators -Dielectric properties
Dielectric constant 4.3, 11.3 Kittell  Chap 13, pp 361 - 365 15-Oct
Optical properties 11.4   Kittel, Chap 10, pp 271-278
Metals
"Free" electrons 6.0 - 6.1 Kittel Chap 6 24-Oct
Metals - Thermal properties
Fermi-Dirac distribution 6.2 - 6.3 Kittel Chap 6
Specific heat 6.4    Kittel Chap 6, pp135 - 140
Metals - Transport  
  Boltzmann equation 9.4   Kittel Appendix F
  Conductivity 9.5, Kittel Chap 6. pp140 - 147
Thermal conductivity 9.7,  Kittel Chap 6., p 150   7-Nov
Dielectric/optical properties 11.9  Kittel Chap 10, 255-261
Hall effect Panel XIV, Kittel Chap. 6, pp147-150 
26 Nov
  Cyclotron resonance Panel XV, Kittel 196
2-D Metal transport Quantum Hall effect Panel XVI , Kittell 539-544