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Prof. Ming-Jer ChenProf. Ming-Jer Chen

Department of Electronics EngineeringDepartment of Electronics Engineering

National Chiao-Tung UniversityNational Chiao-Tung University

02/24/201502/24/2015

DEE3517 DEE3517 Solid State Physics (1)Solid State Physics (1)

Lecture 1a:

Introduction

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Historical Events Leading to the Birth of Solid State Physics:

•Starting from a crystal structure (in real space, periodic arrays of atoms, with a long-range order) two centuries ago by mineralogists (integer index numbers of surface orientations) (in 1850, Bravais lattice)

•In Munich in 1912, X-ray diffraction patterns (in k-space, seen by particles) of crystals was observed, pioneered by Von Laue and his co-workers, theoretically and experimentally

•Initiating Quantum Mechanics with its application to the establishment of Solid State Physics

•Extending to non-crystalline (no long-range order) solids – Condensed Matter Physics

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In 1912, von Laue discovered the diffraction ofX-rays by crystals and won the Nobel Prizein Physics in 1914.

In 1895, Wilhelm Rontgen discovered X-rays. Hewon the Nobel Prize in Physics in 1901.

From Wikipedia

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After von Laue’s pioneering research, in 1912 the Braggs, father and son, experimentally discovered the Bragg law of the X-ray diffraction.

Bragg’s X-ray experiment led to the discovery of the structure of DNA in 1953.

From Wikipedia

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In 1926, Schrodinger published the wave equation.

In 1927, Heisenberg published the uncertainty principle.

From Wikipedia(all under Sommerfeld)

In 1925, Pauli published the exclusion principle.

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Solid State Physics is essential and crucial to our EEPeople. Why?

•Deep and Wide

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How to capture Solid State Physics?

•“Shut up and Calculate” quoted by N. David Mermin

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What you may do in this Solid State Physics (1) class:

•(Textbook assigned in class) Charles Kittel, Introduction to Solid State Physics, 8th edition, John Wiley & Sons, Inc., 2005. - Exactly following the historical trace, including state-of-the-art

•Neil W. Ashcroft and N. David Mermin, Solid State Physics, Brooks/Cole, 1976. - Weak forces of and between atoms, then the Strong forces of and between atoms; a classic but very useful book

• Ming-Jer Chen, Lecture Notes, 2015. - Greater Details

•TA - Extra Assistance

•Google

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Course Content:•Crystal structure: 1D, 2D, and 3D - How to deal with a crystal in different real spaces•X-ray diffraction: - Evidence of k-space, in addition to real space• Reciprocal Space (Lattice) - The k-space seen by particles•Crystal binding - How atoms are condensed in forming a crystal•Phonons - Lattice vibrations•Thermal properties - Phonons•Free electron gas - Electrical and thermal conduction•Energy band - Level to band and the gap between bands

Scoring:100% exams (2 midterm exams and 1 final exam)