Advances in chemical physics . Volume 161 / / edited by Stuart A. Rice and Aaron R. Dinner

• Record Nr.: UNINA9910135013703321
• Pubbl/distr/stampa: Hoboken, New Jersey : , : Wiley, , 2016; ©2016
• ISBN: 1-119-29096-1; 1-119-29095-3; 1-119-29097-X
• Descrizione fisica: 1 online resource (577 p.)
• Collana: Advances in Chemical Physics ; ; Volume 161
• Disciplina: 541
• Soggetti: Chemistry, Physical and theoretical; Spintronics; Photochemistry - Research; 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 at the end of each chapters and index.
• Nota di contenuto: Title Page ; Copyright Page ; Contents ; Contributors to Volume 161 ; Preface to the Series ; Chapter 1 Structural Analysis by X-ray Intensity Angular Cross Correlations ; I. Introduction ; II. Theory ; A. Scattering from a Disordered System of Reproducible Particles ; B. 2D Disordered Systems ; 1. Dilute Systems ; 2. Dense Systems ; C. 3D Disordered Systems ; D. Two- and Three-Point Angular CCFs and Their Fourier Decomposition ; 1. General Definitions ; 2. Analysis of Disordered Systems by Angular CCFs ; III. Applications ; A. Single-Particle Structure Recovery from FXS; 1. 2D Structure Determination 2. 3D Structure Determination ; B. Correlations in Disordered and Partially Ordered Phases ; 1. Local Structure of Colloidal Systems ; 2. BO Order in Liquid Crystals ; 3. Structural Inhomogeneities in Semicrystalline Polymers ; 4. Short-Range and Medium-Range Order in Metallic Glasses ; 5. Emergent Rotational Symmetries and Domain Memory in Magnetic Multilayers ; IV. Conclusions and Outlook ; Acknowledgments ; References ; Chapter 2 ; Spin Relaxation in Phase Space ; I. Introduction; II. Density Matrix and Phase Space Formulations of Relaxation Phenomena in Spin Systems A. Density Matrix Formulation of Spin Relaxation and Resonance ; 1. General Equations ; 2. Collision Kernel in the Markovian Approximation ; 3. Time-dependent Hamiltonian ; 4. Method of Statistical Moments ; B. Quasiprobability Distribution Functions for Particles ; 1. The Wigner Distribution Function for Particles ; 2. Application to Transition-State Theory ; 3. Application to Quantum Brownian Motion ; C. Quasiprobability Distribution Functions for Spins ; 1. Spin Phase-Space Distribution Functions; 2. Weyl Symbols of Some Spin Operators 3. Master Equation and Statistical Moment Equations for Spin Relaxation in Phase Space ; D. Equilibrium Phase Space Distribution Functions for Spins ; 1. Spins in a Uniform External Field ; 2. Uniaxial Nanomagnet in an External Field ; 3. Uniaxial Nanomagnet in a Transverse Field ; 4. Biaxial Anisotropy ; 5. Cubic Anisotropy ; 6. TST Reversal Time ; 7. Switching Field Curves ; 8. Discussion ; III. Master Equation in Phase Space for Axially Symmetric Systems ; A. Master Equation for a Uniaxial Nanomagnet Subjected to a dc Magnetic Field; 1. Explicit Form of the Master Equation 2. Differential Recurrence Relations for the Statistical Moments ; B. Spin Relaxation in a dc Magnetic Field ; 1. Basic Equations ; 2. Quantum Analog of the Magnetic Langevin Equation ; 3. Exact Solution of the Master Equation for Longitudinal Relaxation ; 4. Nonlinear Longitudinal Relaxation Time ; 5. Linear Response ; 6. Single-Mode Approximation ; C. Longitudinal Relaxation of Uniaxial Nanomagnets ; 1. Calculation of the Observables ; 2. Analytic Equations for the Characteristic Relaxation Timesand Dynamic Susceptibility; 3. Nonlinear Longitudinal Relaxation in Superimposed ac and dc Magnetic Fields