Owens / Poole / Farach Magnetic Resonance of Phase Transitions

1. Auflage 2013
ISBN: 978-1-4832-1905-9
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 400 Seiten, Web PDF

Magnetic Resonance of Phase Transitions shows how the effects of phase transitions are manifested in the magnetic resonance data. The book discusses the basic concepts of structural phase and magnetic resonance; various types of magnetic resonances and their underlying principles; and the radiofrequency methods of nuclear magnetic resonance. The text also describes quadrupole methods; the microwave technique of electron spin resonance; and the Mössbauer effect. Phase transitions in various systems such as fluids, liquid crystals, and crystals, including paramagnets and ferroelectrics, are also considered. Physicists and scientists working in energetic materials laboratories will find the book invaluable.

Autoren/Hrsg.

Owens, Frank J.

Poole, Charles P.

Farach, Horacio A.

Inhaltsverzeichnis

1;Front Cover;1
2;Magnetic Resonance of Phase Transitions;4
3;Copyright Page;5
4;Table of Contents;6
5;List of Contributors;8
6;Preface;10
7;Chapter 1. Basic Concepts of Structural Phase Transitions;12
7.1;I. Introduction;12
7.2;II. Macroscopic Theory;18
7.3;III. Microscopic Theories;21
7.4;IV. Experimental Approaches;31
7.5;References;33
8;Chapter 2. Basic Concepts of Magnetic Resonance;36
8.1;I. Introduction;37
8.2;II. Fundamentals;37
8.3;III. Nuclear Magnetic Resonance;47
8.4;IV. Nuclear Quadrupole Resonance;54
8.5;V. Electron Spin Resonance;57
8.6;VI. M.ssbauer Resonance;66
8.7;VII. Relaxation Measurements;72
8.8;References;86
9;Chapter 3. NMR and NQR in Fluids, Paramagnets, and Crystals;90
9.1;I. Introduction;90
9.2;II. Static and Time-Dependent Critical Phenomena;94
9.3;III. The NMR and NQR Approach;100
9.4;IV. NMR near the Critical Point in Fluids;108
9.5;V. NMR in the Paramagnetic Phase and near the Ordering Temperature;112
9.6;VI. NMR and NQR near Structural Phase Transitions;129
9.7;References;175
10;Chapter 4. NMR of Liquid Crystals;182
10.1;I. Introduction;183
10.2;II. Motional Averaging;196
10.3;III. Orientational Order;210
10.4;IV. Spin–Lattice Relaxation in Thermotropic Liquid Crystals;241
10.5;Appendix A Spherical Harmonics and Their Transformations;250
10.6;References;254
11;Chapter 5. Magnetic Resonance Studies of Proton Dynamics in KDP Type Ferroelectrics;258
11.1;I. Introduction;259
11.2;II. The Pseudo-Spin Model and the Soft Mode Dynamics;260
11.3;III. The Polarization Fluctuation Spectrum and the Central Peak;263
11.4;IV. Condensing Modes;269
11.5;V. Order Parameter and Shape of the O—H---O Hydrogen Bond Potential;272
11.6;VI. Short-Range Correlations of Proton Motion;276
11.7;VII. Fluctuations at Cationic Sites;281
11.8;VIII. Soft Mode Dynamics;283
11.9;IX. Central Peak Phenomena;289
11.10;X. Conclusions;300
11.11;References;300
12;Chapter 6. EPR of Transition Ions as a Probe of Structural Changes;302
12.1;I. Introduction;303
12.2;II. Transition Ions;304
12.3;III. Nature of Structural Phase Transitions;311
12.4;IV. Effect of Phase Transitions on EPR Data;313
12.5;V. Ferroelectrics;315
12.6;VI. Nonpolar Phase Transitions;326
12.7;VII. Magnetic Phase Transitions;334
12.8;VIII. Summary;337
12.9;References;338
13;Chapter 7. M.ssbauer Studies;342
13.1;I. Introduction;343
13.2;II. Basics of M.ssbauer Spectroscopy;344
13.3;III. Magnetic Phase Transitions;350
13.4;IV. Structual Phase Transitions;366
13.5;V. Metal-Nonmetal Transitions;382
13.6;VI. High-Spin–Low-Spin Transitions;384
13.7;VII. Other Phase Transitions;386
13.8;VIII. Conclusions;387
13.9;References;388
14;Index;394