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Symmetry Principles in Solid State and Molecular Physicsby Melvin J. Lax
Synopses & ReviewsPublisher Comments:Highlevel text applies group theory to solid state and molecular physics. The author develops shortcut and invariant methods for solving molecular vibration problems and for determining the form of crystal tensors; develops the translational properties of crystals, including Bravais lattices and space groups; and explains relevant applications to electron phonon scattering, optical absorption selection rules, electronic energy bands, electron dynamics, and effective Hamiltonians. Unique features of this volume include use of subgroup techniques, consideration of the influence of time reversal on selection rules, use of shell theorems and invariance techniques to construct the form of tensors, and use of broken symmetry to relate the symmetry of valence and molecular orbitals to the symmetry of electron molecular wave functions. 1974 edition. More than 200 problems. 69 blackandwhite illustrations. Eight appendixes. Author Index and Bibliography. Indexes. Book News Annotation:This graduate textbook applies group theory to solids and molecules. The author develops invariant methods for solving vibration problems and constructing the form of crystal tensors, and describes applications to optical absorption selection rules, electronic energy bands, and effective Hamiltonians. Originally published by John Wiley in 1974.
Annotation c. Book News, Inc., Portland, OR (booknews.com) Synopsis:Highlevel text applies group theory to physics problems, develops methods for solving molecular vibration problems and for determining the form of crystal tensors, develops translational properties of crystals, more. 1974 edition. Synopsis:Highlevel text applies group theory to solid state and molecular physics. The author develops shortcut and invariant methods for solving molecular vibration problems and for determining the form of crystal tensors; develops the translational properties of crystals; and explains relevant applications. 69 illustrations. 1974 edition. Synopsis:Geared toward students and professionals working on the theory of solids, this highlevel volume applies group theory to solid state and molecular physics. It starts with fundamental theorems and the uses of group theory and representations, advancing to the summary of point groups, including the relation between spin and double groups. Additional features include examples in optical absorption selection rules, spinorbit coupling and crystal field theory, plus a complete demonstration of projection techniques. Shortcut and invariant methods for solving molecular vibration problems and for determining the form of crystal tensors are discussed, along with the translational properties of crystals, including Bravais lattices and space groups. The author explains relevant applications to electron phonon scattering, optical absorption selection rules, electronic energy bands, electron dynamics, and effective Hamiltonians. Over 200 carefully selected problems.
Table of ContentsChapter 1. Relation of Group Theory to Quantum mechanics
1.1 Symmetry Operations 1.2 Abstract Group Theory 1.3 Commuting Observables and Classes 1.4 Representations and Irreducible Representations 1.5 Relation between Representations, Characters, and States 1.6 Continuous Groups 1.7 Summary Chapter 2. Point Groups 2.1 Generators of the Proper Rotation Group R superscript + (3) 2.2 The Commutator Algebra of R superscript + (3) 2.3 Irreducible Representations of R superscript + (3) 2.4 Characters of the Irreducible Representations of R superscript + (3) 2.5 The Threedimensional Representation j=1 of R superscript + (3) 2.6 The Spin Representation j=1/2 of R superscript + (3) 2.7 Class Structure of Point Groups 2.8 The Proper Point Groups 2.9 Nature of Improper Rotations in a Finite Group 2.10 Relation between Improper and Proper Groups 2.11 Representations of Groups Containing the Inversion 2.12 Product Groups 2.13 Representations of an Outer Product Group 2.14 Enumeration of the Improper Point Groups 2.15 Crystallographic Point Groups 2.16 Double Point Groups 2.17 Summary Chapter 3. Point Group Examples 3.1 Electric and Magnetic Dipoles: Irreducible Components of a Reducible Space 3.2 Crystal field Theory without Spin: Compatibility Relations 3.3 Product Representations and Decomposition of Angular Momentum 3.4 Selection rules 3.5 Spin and SpinOrbit Coupling 3.6 Crystal Field Theory with Spin 3.7 Projection Operators 3.8 Crystal Harmonics 3.9 Summary Chapter 4. Macroscopic Crystal Tensors 4.1 Macroscopic Point Group Symmetry 4.2 Tensors of the First Rank: Ferroelectrics and Ferromagnetics 4.3 SecondRank Tensors: Conductivity, Susceptibility 4.4 Direct Inspection Methods for Tensors of Higher Rank: the Hall Effect 4.5 Method of Invariants 4.6 Measures of Infinitesimal and Finite Strain 4.7 The Elasticity Tensor for Group C subscript (3upsilon) 4.8 Summary Chapter 5. Molecular Vibrations 5.1 Representations contained in NH subscript 3 vibrations 5.2 Determination of the Symmetry Vectors for NH subscript 3 5.3 Symmetry Coordinates, Normal Coordinates, Internal Coordinates, and Invariants 5.4 Potential Energy and Force Constants 5.5 The Number of Force Constants 5.6 Summary Chapter 6. Translational Properties of Crystals 6.1 Crystal Systems, Bravais Lattices, and Crystal Classes 6.2 Representations of the Translation Group 6.3 Reciprocal Lattices and Brillouin Zones 6.4 Character Orthonormality Theorems 6.5 Conservation of Crystal Momentum 6.6 LaueBragg Xray Diffraction 6.7 Summary Chapter 7. Electronic Energy Bands 7.1 Relation between the ManyElectron and OneElectron Viewpoints 7.2 Concept of an Energy Band 7.3 The Empty Lattice 7.4 AlmostFree Electrons 7.5 Energy Gaps and Symmetry Considerations 7.6 Points of Zero Slope 7.7 Periodicity in Reciprocal Space 7.8 The k • p Method of Analytical Continuation 7.9 Dynamics of Electron Motion in Crystals 7.10 Effective Hamiltonians and Donor States 7.11 Summary Chapter 8. Space Groups 8.1 Screw Axes and Glide Planes 8.2 Restrictions on space Group Elements 8.3 Equivalence of Space Groups 8.4 Construction of Space Groups 8.5 Factor Groups of Space Groups 8.6 Groups G subscript k of the Wave Vector k 8.7 Space Group Algebra 8.8 Representations of Symmorphic Space Groups 8.9 Representations of Nonsymmorphic Space Groups 8.10 Class Structure and Algebraic Treatment of Multiplier Groups 8.11 Double Space Groups 8.12 Summary Chapter 9. Space Group Examples 9.1 Vanishing Electric Moment in Diamond 9.2 Induced Quadrupole Moments in Diamond 9.3 Force Constants in Crystals 9.4 Local Electric Moments 9.5 Symmetries of Acoustic and Optical Modes of Vibration 9.6 Hole Scattering by Phonons 9.7 Selection Rules for Direct Optical Absorption 9.8 Summary Chapter 10. Time reversal 10.1 Nature of TimeReversal Operators without Spin 10.2 Time Reversal with Spin 10.3 Time Reversal in External Fields 10.4 Antilinear and Antiunitary Operators 10.5 Onsager Relations 10.6 The TimeReversed Representation 10.7 Timereversal Degeneracies 10.8 The Herring Criterion for Space Groups 10.9 Selection Rules Due to Time Reversal 10.10 Summary Chapter 11. Lattice Vibration Spectra 11.1 Inelastic Neutron Scattering 11.2 Transformation to Normal Coordinates 11.3 Quantized Lattice Oscillators: Phonons 11.4 Crystal Momentum 11.5 Infinitesimal Displacement and Rotational Invariance 11.6 Symmetry Properties of the Dynamical Matrix 11.7 Consequences of Time Reversal 11.8 Form and Number of Independent Constants in the Dynamical Matrix for Internal and Zone Boundary Points 11.9 The Method of Long Waves: Primitive Lattices 11.10 Nonprimitive Lattices and Internal Shifts 11.11 Summary Chapter 12. Vibrations of Lattices with the Diamond Structure 12.1 Force Constants and the Dynamical Matrix 12.2 Symmetry of Vibrations at DELTA = (q, 0, 0) 12.3 R(q) and omega(q) for q = (q, 0, 0) 12.4 Sigma Sum Modes (q, q, 0) 12.5 The Modes LAMBDA = (q, q, q) and L = (2 pi/a)(1/2, 1/2, 1/2) 12.6 Elastic Properties of the Diamond Structure 12.7 Comparison with Experiment 12.8 Summary Chapter 13. Symmetry of Molecular Wave Functions 13.1 Molecular Orbital Theory 13.2 Valence Bond Orbitals 13.3 ManyBody Wave functions and Chemical Structures 13.4 HartreeFock Wave Functions and Broken Symmetry 13.5 The JahnTeller Effect 13.6 Summary Appendix A. Character Tables and Basis Functions for the Single and Double Point Groups Appendix B. Schoenflies, International, and Herring Notations Appendix C. Decomposition of D subscript J superscript plus/minus of Full Rotation Group into Point Group Representations Appendix D. Orthogonality Properties of Eigenvectors of the Equation alpha PSI = lambda B PSI; Reciprocals of Singular Matrices Appendix E. The Brillouin Zones Appendix F. Multiplier Representations for the Point Groups Appendix G. Wigner Mappings and the Fundamental Theorem of Projective Geometry Appendix H. Generalized Mobility Theory Author Index and Bibliography; Subject Index; Symbol Index What Our Readers Are SayingBe the first to add a comment for a chance to win!Product Details
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