PHYSICS 4750 Physics of Modern Materials

Syllabus

Fall 2013

 Instructor: P. M. Shand. Office: 203 Begeman Hall (PHY); Telephone: 273-2930; e-mail: paul.shand@uni.edu; web site: http://faculty.cns.uni.edu/~shand

Class Times: Lecture/Discussion Sessions: Mondays and Wednesdays, 2:00Ð3:50 p.m. in PHY 014

Office Hours: MWTR, 11:00Ð11:50 a.m. in PHY 203. You may also make an appointment to see me or just show up at my office and see whether I am available.

Textbook:  L. Solymar and D. Walsh, Electrical Properties of Materials, 8th edition (Oxford University Press, New York, 2010)

Prerequisites: PHYSICS 4100 (Modern Physics), PHYSICS 4110 (Modern Physics Laboratory)

Online Course Information: E-Learning or http://faculty.cns.uni.edu/~shand/pmm.htm

Academic Learning Center: You are encouraged to utilize the Academic Learning CenterÕs free assistance with writing, math, science, reading, and learning strategies. UNIÕs Academic Learning Center is located in 008 ITTC. Visit the website at http://www.uni.edu/unialc/ or telephone 319-273-2361 for more information.

Disabilities: The Americans with Disabilities Act of 1990 (ADA) provides protection from illegal discrimination for qualified individuals with disabilities. Students requesting instructional accommodations due to disabilities must arrange for such accommodations through the Office of Disability Services. The Office is located at 103 Student Health Center. Its telephone number is 273-2676.

Weather Emergencies: In the event of a weather emergency (tornado or high winds), the campus warning sirens will sound and a warning message will be broadcast inside Begeman Hall and inside Lang Hall.  If we are in class, we will immediately move to an inside hallway (away from outside windows).  The hallway on a ground floor is the best location, though any hallway (on any level) is better than a classroom in an emergency, if time is short. Do not leave the building during such an emergency. Wind-borne debris can seriously injure you.

Course Description: Physics of Modern Materials is a course dedicated to the study of the physical properties of materials, with special emphasis on the electronic properties. A significant fraction of the course will be devoted to the physics of semiconductors and semiconductor devices. The reason is that the information and communication technology industry, which contributes significantly to the economic growth of the United States, is largely based on microprocessors and other hardware fabricated from silicon ­Ð a semiconductor. In addition, magnetic and superconducting properties will be discussed, along with applications Ð both present and future. The driving and animating force of the course is the illumination of the principles of materials physics that underlie the operation of modern devices. Thus, the emphasis will be on the physics and not the intricate details of device technology. There will also be a small number of laboratory activities throughout the semester. Upon successfully completing this course, a student will have a basic understanding of band theory and its application to semiconducting materials and devices. The student should also be conversant with fundamental properties of optoelectronic, magnetic, and superconducting materials and their exploitation in various modern devices.

Attendance and Assignments: Attendance and participation are required at all class meetings and are your responsibility. It should be noted that studentsÕ records of attendance and participation will be used in determining their final grade in borderline cases. Assignments must be submitted in class on the due date. Submission after this time will not be accepted. Work that is missed or late due to absence may be made up or turned in late, as the case may be, if the absence is for good cause, e.g., illness, emergency, or varsity activity. But, the student must explain the cause to the instructor and make the necessary arrangements. This should be done in advance if possible and certainly as soon as possible. A score of zero will be given to students who cheat in any way on work submitted for grading. The University may also impose severe penalties for cheating (see 2012-2014 UNI Catalog of Programs and Courses).

Homework: Homework will be assigned at approximately weekly intervals. The assignments will usually consist of end-of-chapter problems from the textbook. All the answers are provided at the back of the textbook, so the emphasis in the grading will be on the solutions to the problems. Your solutions must be presented in a clear, logical fashion with all necessary steps shown.  Simply writing down the answer with little or no explanation will result in a score of zero. Discussion of homework with others is encouraged, but the written answers and solutions submitted for grading should be your own work. Homework assignments will usually be due one week after the assignment is given. Solutions to the homework assignments will be placed on reserve in the Library (after the due date). The solutions will be available on-line on E-Learning.

First Homework Assignment: Chapter 3, Exercise 3.2, 3.3, 3.5, 3.11, 3.13; Chapter 4, Exercise 4.4. Due: Wednesday, 9/4/13

Laboratory Activities: There will be a small number of experiments to be performed during the semester. The experiments will be scheduled as close as possible to the time when the related course material is being discussed in the lectures. Each student must prepare a report on each experiment, due one week after the experiment is conducted. Laboratory reports should be written using a format similar to those used for articles in professional physics journals. A report should contain the following items: (1) An Introduction, in which the purpose of the experiment, background information, and theory are presented; (2) an Experimental Details section, in which the experimental procedure is briefly described; (3) a Results section, in which experimental results (tables, graphs, sample calculations) are presented (with associated uncertainties); (4) An Error Analysis section, in which experimental uncertainties are estimated; (5) a Discussion section, in which the experimental results are interpreted and discussed; and (6) a Conclusions section, which is a brief summary of the main conclusions drawn from the activity. The main experimental results (values) you obtained should be restated in the Conclusions section.

Examinations: There will be two examinations during the semester and one final examination. (The final examination will be a non-comprehensive third examination.) There will be at least one problem on each chapter. A problem may have a qualitative part, i.e., you will be required to write a brief discussion. Each problem will have a quantitative part involving calculations. The quantitative parts will be similar in scope and level of difficulty to the homework problems. If the date of an examination has to be changed, the instructor will notify students at least a week in advance of the original date.

Grading Scheme: Performance in the various categories of work will count toward your final grade as follows:

Homework

40%

Examinations (15% each)

30%

Final examination

20%

Laboratory reports

10%

 Letter grades may be found from the following standard scale of percentage cutoffs for the grades:          

93% for A

80% for BÐ

67% for D+

90% for AÐ

77% for C+

63% for D

87% for B+

73% for C

60% for DÐ

83% for B

70% for CÐ

< 60% for F

 Each examination will have its own grade scale, which will be announced following the examination. (All scores on examination grade scales will be converted into equivalent scores on the standard scale given above before being combined with other scores to produce a course grade.)

General Comments: This course covers exciting topics in materials physics that are relevant to work currently being done in many industries and research laboratories. In addition, you will study many devices that function based upon the physics principles that you will be studying. The instructor hopes that the course will prove to be useful and rewarding for all enrolled students. It should be borne in mind that many topics will be covered in the course, not all of which will be discussed in the lectures. Hence, every student will have to work hard to keep up with the rapid pace with which new course material will be covered, including those topics that you will have to learn on your own. The textbook sections that comprise the course material are given in the course schedule below. The instructor will do his utmost to ensure that each student does well in the course; however, ultimately, it is the student's responsibility to devote the necessary time and effort to succeed. Onward!

Dates to Observe:

September 6: Last day to drop this course without a ÒW.Ó

November 1: Last day to drop this course without an ÒF.Ó

Class Schedule: The schedule for the coverage of course content is shown below with approximate dates. Homework assignments will be distributed separately.

Week Beginning on

Topic

Relevant Textbook

Chapter Sections

Wk. 1: Aug. 26, 28

Chapter 3: The electron

3.1-3.8

Wk. 2: Sep. 2

Labor Day

 

Sep. 4

Chapter 3: The electron

3.9-3.10

 

Chapter 4: Hydrogen atom

4.1-4.4

Wk. 3: Sep. 9, 11

Chapter 5: Bonds

5.1-5.7

Wk. 4: Sep. 16, 18

Chapter 6: The free-electron theory of metals

6.1-6.11

Wk. 5: Sep. 23

Chapter 7: The band theory of solids

7.1-7.2

Sep. 25

Examination 1 (Chapters 3-6)

 

Wk. 6: Sep. 30, Oct. 2

Chapter 7: The band theory of solids

7.3-7.12

Wk. 7: Oct. 7, 9

Chapter 8: Semiconductors

8.1-8.6

Wk. 8: Oct. 14

Chapter 8: Semiconductors

8.7-8.10

Oct. 16

Lab 1: Hall effect in germanium

 

Wk. 9: Oct. 21, 23

Chapter 8: semiconductors

8.10-8.11

 

Chapter 9: Principles of semiconductor devices

9.1-9.4

Wk. 10: Oct. 28, 30

Chapter 9: Principles of semiconductor devices

9.5-9.17

Wk. 11: Nov. 4, 6

Chapter 9: Principles of semiconductor devices

9.18-9.25

 

Chapter 13 Optoelectronics

13.1-13.3

 

Chapter 11: Magnetic materials

11.1-11.3

Wk. 12: Nov. 11

Chapter 11: Magnetic materials

11.4-11.7

Nov. 13

Examination 2 (Chapters 7-9)

 

Wk. 13: Nov. 18

Chapter 11: Magnetic materials

11.8-11.9

Nov. 20

Lab 2: Proton spin resonance

 

Nov. 25, 27

Thanksgiving Break

 

Wk. 14: Dec. 2

Chapter 14: Superconductivity

14.1-14.5

 Dec. 4

Lab 3: Superconducting transition temperature of YBa2Cu3O8

 

Wk. 15: Dec. 9, 11

Chapter 14: Superconductivity

14.6-14.10

 

Final Examination (Chapters 11, 14, 6, 7, 8): Monday, December 16, 3:00Ð4:50 p.m.