Thermoelectric Power of Metals
Kluwer Academic/Plenum Publishers (Verlag)
978-0-306-30907-6 (ISBN)
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In contrast to the more conventional transport properties, second-and high-order contributions in electron scattering theory appear to play a profound role in thermoelectricity-the controversy surrounding ordinary and "phony" phonon drag is far from resolved; the startlingly large effect of magnetic fields on the thermopower of metals appears to be linked intimately to scattering anisotropy; quantum oscillations of thermopower are orders of magnitude larger than corresponding oscillations of the magnetoresistance; a new approach to thermoelectric studies allows extension of thermopower measurements into the millikelvin region of temperature; finally, the advent of superconducting detection devices permits the precise measurement of extremely small voltages, an essential requirement in this field.
1. Introduction.- 1.1 Seebeck, Peltier, and Thomson Effects.- 1.2 Transport Coefficients and Onsager Relations.- 2. Survey of the Theory of Electronic Conduction in Metals.- 2.1 Electrons in Metals.- 2.1a Free Electron Gas.- 2.1b Energy Bands.- 2.2 Transport Properties.- 2.3 Relaxation Time Anisotropy for Spherical Fermi Surfaces.- 2.4 Thermopower: Isotropic Relaxation Time Approximation.- 2.5 Thermopower: Real Metals.- 2.5a Alkali and Noble Metals.- 2.5b Polyvalent Metals.- 2.6 Phonon Drag.- 2.7 Thermopower of Alloys.- 2.7a Diffusion Thermopower.- 2.7b Phonon Drag.- 3. Techniques in Thermoelectric Measurements.- 3.1 Introduction.- 3.2 Seebeck Effect.- 3.3 Peltier Effect.- 3.4 Thomson Effect: The Absolute Thermopower of Lead.- 3.5 Measurement of Unconventional Thermoelectric Coefficients.- 3.6 Measurement of Temperature and of Small Voltages.- 3.6a Temperature Measurement.- 3.6b Voltage Measurement.- 3.7 Superconducting Devices.- 3.7a Superconducting Modulators.- 3.7b Weak Link and Josephson Junction Devices-SQUIDS and Slugs.- 3.7b1 SQUIDS.- 3.7b2 Slugs.- 4. Phonon Drag.- 4.1 Introduction and General Relations.- 4.2 Sg at High Temperatures.- 4.3 Sg at Low Temperatures.- 4.3a Low-Temperature Phonon Drag in the Alkali Metals.- 4.3b Low-Temperature Phonon Drag in Other Metals.- 4.4 Anisotropy of Relaxation Times and Phonon-Drag Thermopower.- 4.5 Sg at Intermediate Temperatures.- 4.6 Sg of Alloys.- 4.7 Phonon Drag or Phony Phonon Drag?.- 4.7a Pure Metals.- 4.7b Dilute Alloys.- 4.7c Evidence for "Phony Phonon Drag".- 4.7d Effects of Higher-Order Scattering Processes.- 5. The Thermoelectric Power of Transition Metals.- 5.1 Special Problems in Transition Metals.- 5.1a s- and d-Conduction.- 5.1b Electron-Electron Collisions.- 5.1c Magnetic Effects: Collective Electrons and Isolated Spins.- 5.1d Magnetic Effects: Magnons and Paramagnons.- 5.1e Magnetic Effects: Spin Mixing.- 5.1f Magnetic Effects: The Curie and Neel Temperatures.- 5.2 The Diffusion Thermopower of Transition Metals.- 5.2a Phonons and Impurities.- 5.2b Electron-Electron Scattering.- 5.2c Magnons and Paramagnons.- 5.2d Two-Current Conduction and Spin Mixing.- 5.2e Curie Point Anomalies.- 5.3 The Phonon-Drag Thermopower of Transition Metals.- 5.4 Magnon Drag.- 5.5 Transition Elements: Summary of Experimental Results.- 5.5a The Magnetic Elements: Cr, Mn, Fe, Co, and Ni.- 5.5b The "Thermocouple" Elements: Fe, Pt, Re, and W.- 5.6 Commercial Thermocouples.- 5.6a Copper vs. Constantan (Type T).- 5.6b Iron vs. Constantan (Type J).- 5.6c Chromel vs. Constantan (Type E).- 5.6d Chromel vs. Alumel (Type K).- 5.6e Tungsten vs. Tungsten-Rhenium (Types G* and C*).- 5.6f Platinum vs. Platinum-Rhodium (Types R, S, and B).- 6. Dilute Magnetic Alloys.- 6.1 Introduction.- 6.2 The Virtual Bound State.- 6.2a Electronic Properties for VBS Systems.- 6.2b Survey of Experimental Results for VBS Systems.- 6.3 Kondo Alloys.- 6.3a Theory of the Kondo Effect.- 6.3b Thermoelectric Power of Kondo Alloys.- 6.4 Spin-Fluctuation Models.- 6.5 Closing Comment.- 7. Effects of Pressure and Magnetic Field on the Thermoelectric Power.- 7.1 Pressure Dependence.- 7.1a Introduction.- 7.1b Practical Thermocouples.- 7.1c Fundamental Studies.- 7.1c1 Diffusion Thermopower.- 7.1c2 Phonon-Drag Thermopower.- 7.2 Magnetic Field Dependence.- 7.2a Introduction.- 7.2b Practical Thermocouples.- 7.2c Fundamental Studies.- 7.2d Landau Quantization Effects.- References.- Author Index.
Zusatzinfo | biography |
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Sprache | englisch |
Themenwelt | Naturwissenschaften ► Physik / Astronomie ► Elektrodynamik |
Technik | |
ISBN-10 | 0-306-30907-6 / 0306309076 |
ISBN-13 | 978-0-306-30907-6 / 9780306309076 |
Zustand | Neuware |
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