Mössbauer effect in lattice dynamics [[electronic resource] ] : experimental techniques and applications / / Yi-Long Chen and De-Ping Yang

• Record Nr.: UNINA9910144728903321
• Autore: Chen Yi-Long
• Pubbl/distr/stampa: Weinheim, : Wiley-VCH; [Chichester, : John Wiley, distributor], c2007
• ISBN: 1-281-08804-8; 9786611088040; 3-527-61142-8; 3-527-61143-6
• Descrizione fisica: 1 online resource (427 p.)
• Altri autori (Persone): YangDe-Ping
• Disciplina: 530.411; 537.5352
• Soggetti: Lattice dynamics; Mössbauer effect; Mössbauer spectroscopy; Electronic books.
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Mössbauer Effect in Lattice Dynamics; Contents; Preface; 1 The Mössbauer Effect; 1.1 Resonant Scattering of γ-Rays; 1.2 The Mössbauer Effect; 1.2.1 Compensation for Recoil Energy; 1.2.2 The Discovery of the Mössbauer Effect; 1.3 The Mössbauer Spectrum; 1.3.1 The Measurement of a Mössbauer Spectrum; 1.3.2 The Shape and Intensity of a Spectral Line; 1.4 The Classical Theory; 1.5 The Quantum Theory; 1.5.1 Coherent States of a Harmonic Oscillator; 1.5.2 Gamma Radiation from a Bound Nucleus; 1.5.3 Mössbauer Effect in a Solid; 1.5.4 Average Energy Transferred; References; 2 Hyperfine Interactions; 2.1 Electric Monopole Interaction2.1.1 A General Description; 2.1.2 The Isomer Shift; 2.1.3 Calibration of Isomer Shift; 2.1.4 Isomer Shift and Electronic Structure; 2.2 Electric Quadrupole Interaction; 2.2.1 Electric Quadrupole Splitting; 2.2.2 The Electric Field Gradient (EFG); 2.2.2.1 Sources of EFG; 2.2.2.2 Temperature Effect on EFG; 2.2.3 Intensities of ; the Spectral Lines; 2.2.4 The Sign of EFG; 2.3 Magnetic Dipole Interaction; 2.3.1 Magnetic Splitting; 2.3.2 Relative Line Intensities; 2.3.3 Effective Magnetic Field; 2.4 Combined Quadrupole and Magnetic Interactions; 2.5 Polarization of γ-Radiation2.5.1 Polarized Mössbauer Sources; 2.5.2 Absorption of Polarized γ-Rays; 2.6 Saturation Effect in the Presence of Hyperfine Splittings; 2.7 Mössbauer Spectroscopy; References; 3 Experimental Techniques; 3.1 The Mössbauer Spectrometer; 3.2 Radiation Sources; 3.3 The Absorber; 3.3.1 Estimation of the Optimal Thickness; 3.3.2 Sample Preparation; 3.4 Detection and Recording Systems; 3.4.1 Gas Proportional Counters; 3.4.2 NaI(Tl) Scintillation Counters; 3.4.3 Semiconductor Detectors; 3.4.4 Reduction and Correction of Background Counts; 3.4.5 Geometric Conditions; 3.4.6 Recording Systems3.5 Velocity Drive System; 3.5.1 Velocity Transducer; 3.5.2 Waveform Generator; 3.5.3 Drive Circuit and Feedback Circuit; 3.5.4 Velocity Calibration; 3.5.4.1 Secondary Standard Calibration; 3.5.4.2 Absolute Velocity Calibration; 3.6 Data Analysis; 3.6.1 Fitting Individual Lorentzian Lines; 3.6.1.1 Spectra from Crystalline Samples; 3.6.1.2 Spectra from Amorphous Samples; 3.6.2 Full Hamiltonian Site Fitting; 3.6.3 Fitting Thick Absorber Spectra; References; 4 The Basics of Lattice Dynamics; 4.1 Harmonic Vibrations; 4.1.1 Adiabatic Approximation; 4.1.2 Harmonic Approximation4.1.3 Force Constants and Their Properties; 4.1.4 Normal Coordinates; 4.2 Lattice Vibrations; 4.2.1 Dynamical Matrix; 4.2.2 Reciprocal Lattice and the Brillouin Zones; 4.2.2.1 Reciprocal Lattice; 4.2.2.2 Brillouin Zones; 4.2.3 The Born-von Karman Boundary Condition; 4.2.4 Acoustic and Optical Branches; 4.2.5 Longitudinal and Transverse Waves; 4.2.6 Models of Interatomic Forces in Solids; 4.3 Quantization of Vibrations: The Phonons; 4.4 Frequency Distribution and Thermodynamic Properties; 4.4.1 The Lattice Heat Capacity; 4.4.2 The Density of States; 4.4.2.1 The Einstein Model
• Sommario/riassunto: This up-to-date review closes an important gap in the literature by providing a comprehensive description of the M?ssbauer effect in lattice dynamics, along with a collection of applications in metals, alloys, amorphous solids, molecular crystals, thin films, and nanocrystals. It is the first to systematically compare M?ssbauer spectroscopy using synchrotron radiation to conventional M?ssbauer spectroscopy, discussing in detail its advantages and capabilities, backed by the latest theoretical developments and experimental examples.Intended as a self-contained volume that may be used as a c