Fractional Kinetics in Solids : Anomalous Charge Transport in Semiconductors, Dielectrics and Nanosystems.
The standard (Markovian) transport model based on the Boltzmann equation cannot describe some non-equilibrium processes called anomalous that take place in many disordered solids. Causes of anomality lie in non-uniformly scaled (fractal) spatial heterogeneities, in which particle trajectories take c...
Clasificación: | Libro Electrónico |
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Autor principal: | |
Otros Autores: | |
Formato: | Electrónico eBook |
Idioma: | Inglés |
Publicado: |
Singapore :
World Scientific,
2012.
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Temas: | |
Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Preface
- 1. Statistical grounds
- 1.1 Levy stable statistics
- 1.1.1 Generalized limit theorems
- 1.1.2 Two subclasses of stable distributions
- 1.1.3 Fractional stable distributions
- 1.1.4 Self-similar processes: Brownian motion and Levy motion
- 1.1.5 Space-fractional equations
- 1.2 Random flight models
- 1.2.1 Continuous time random flights
- 1.2.2 Counting process for number of jumps
- 1.2.3 The Poisson process
- 1.2.4 The Fractional Poisson process
- 1.2.5 Simulation of waiting times
- 1.3 Some properties of the fractional Poisson process
- 1.3.1 The nth arrival time distribution
- 1.3.2 The fractional Poisson distribution
- 1.3.3 Limit fractional Poisson distributions
- 1.3.4 Fractional Furry process
- 1.3.5 Time-fractional equation
- 1.4 Random flights on a one-dimensional Levy-Lorentz gas
- 1.4.1 One-dimensional Levy-Lorentz gas
- 1.4.2 The flight process on the fractal gas
- 1.4.3 Propagators
- 1.4.4 Fractional equation for flights on fractal
- 1.5 Subdiffusion
- 1.5.1 Integral equations of diffusion in a medium with traps
- Necessary and sufficient condition for subdiffusion
- 1.5.2 Differential equations of subdiffusion
- 1.5.3 Subdiffusion distribution density
- 1.5.4 Analysis of subdiffusion distributions
- 1.5.5 Discussion
- 2. Fractional kinetics of dispersive transport
- 2.1 Macroscopic phenomenology
- 2.1.1 A role of phenomenology in studying complex systems
- 2.1.2 Universality of transient current curves
- 2.1.3 From self-similarity to fractional derivatives
- 2.1.4 From transient current to waiting time distribution
- 2.2 Microscopic backgrounds of dispersive transport
- 2.2.1 From the Scher-Montroll model to fractional derivatives
- 2.2.2 Physical basis of the power-law waiting time distribution
- 2.2.3 Multiple trapping regime
- 2.2.4 Hopping conductivity.
- 2.2.5 Bassler's model of Gaussian disorder
- 2.3 Fractional formalism of multiple trapping
- 2.3.1 Prime statements
- 2.3.2 Multiple trapping regime and Arkhipov-Rudenko approach
- 2.3.3 Fractional equations for delocalized carriers
- 2.3.4 Fractional equation for the total concentration
- 2.3.5 Two-state dynamics
- 2.3.6 Delocalized carrier concentration
- 2.3.7 Percolation and fractional kinetics
- 2.3.8 The case of Gaussian disorder
- 2.4 Some applications
- 2.4.1 Dispersive diffusion
- 2.4.2 Photoluminescence decay
- 2.4.3 Including recombination
- 2.4.4 Including generation
- 2.4.5 Bipolar dispersive transport
- 2.4.6 The family of fractional dispersive transport equations
- 3. Transient processes in disordered semiconductor structures
- 3.1 Time-of-flight method
- 3.1.1 Transient current in disordered semiconductors
- 3.1.2 Transient current for truncated waiting time distributions
- 3.1.3 Distributed dispersion parameter
- 3.1.4 Transient current curves in case of Gaussian disorder
- 3.1.5 Percolation in porous semiconductors
- 3.1.6 Non-stationary radiation-induced conductivity
- 3.2 Non-homogeneous distribution of traps
- 3.2.1 Non-uniform spatial distribution of localized states
- 3.2.2 Multilayer structures
- 3.2.3 The "disordered
- crystalline" semiconductor structure
- 3.3 Transient processes in a diode under dispersive transport conditions
- 3.3.1 Turning on by the current step
- 3.3.2 Turning off by interruption of circuit
- 3.4 Frequency properties of disordered semiconductor structures
- 3.4.1 Frequency dependence of conductivity
- 3.4.2 A diode at dispersive transport conditions
- 4. Fractional kinetics in quantum dots and wires
- 4.1 Fractional optics of quantum dots
- 4.1.1 Off- and on-intervals statistics
- 4.1.2 Physical mechanisms of power law blinking
- 4.1.3 Two-state renewal model.
- 4.1.4 Fractional blinking process
- 4.1.4.1 Total fluorescence time distribution
- 4.1.5 Photon counts distribution
- 4.2 Charge kinetics in colloidal quantum dot arrays
- 4.2.1 Fractional currents in colloidal quantum dot array
- 4.2.2 Modification of the Scher-Montroll model
- 4.2.3 Current decay in the modified model
- 4.2.4 Interdot disorder
- 4.2.5 Monte Carlo simulation
- 4.3 Conductance through fractal quantum conductors
- 4.3.1 Weak localization (scattering)
- 4.3.2 Sequential incoherent tunneling
- 5. Fractional relaxation in dielectrics
- 5.1 The relaxation problem
- 5.1.1 The relaxation functions
- 5.1.2 Non-Debye empirical laws
- 5.1.3 Superposition model
- 5.1.4 Stochastic interpretations of the universal relaxation law
- 5.1.5 Random activation energy model
- 5.2 Fractional approach
- 5.2.1 Fractional derivatives for relaxation problem
- 5.2.2 Polar dielectrics: model of rotational subdiffusion
- 5.2.3 A prehistory contribution
- 5.2.4 Green's function
- 5.2.4.1 The first representation
- 5.2.4.2 The second representation
- 5.3 The Cole-Cole kinetics
- 5.3.1 Fractional generalization of the Ohm's law
- 5.3.2 Numerical demonstration of the memory effect
- 5.3.2.1 Mittag-Leffer representation
- 5.3.2.2 Monte Carlo calculations
- 5.3.3 Polarization-depolarization currents
- 5.3.4 Radiation-induced dielectric effect in polymers
- 5.3.5 Hysteresis in ferroelectric ceramics
- 5.4 The Havriliak-Negami kinetics
- 5.4.1 The Cole-Davidson response
- 5.4.2 Fractional kinetics and Havriliak-Negami response
- 5.4.3 Stochastic inversion of the Havriliak-Negami operator
- 5.4.4 Three-power term approximation of the HN-relaxation
- 5.4.5 Pass-through conductivity and Raicu's response
- 5.4.6 Fractional waves in the HN dielectrics
- 5.5 The Kohlrausch-Williams-Watts kinetics
- 5.5.1 The KWW relaxation function.
- 5.5.2 Levy-stable statistics and KWW relaxation
- 5.5.2.1 Relaxation in glassy materials
- 5.5.2.2 Quantum decay theory
- 5.5.3 Fractional equation for KWW relaxation
- 6. The scale correspondence principle
- 6.1 Finity and infinity
- 6.2 Intermediate space-asymptotics
- 6.3 Intermediate time-asymptotics
- 6.4 Concluding remarks
- Appendix A One-sided stable laws
- Appendix B Fractional stable distributions
- Appendix C Fractional operators: main properties
- C.1 Axiomatics (Ross, 1975)
- C.2 Interrelations between fractional operators
- C.3 The law of exponents
- C.4 Differentiation of a product
- C.5 Integration by parts
- C.6 Generalized Taylor series
- C.7 Expression of fractional derivatives through the integers
- C.8 Indirect differentiation: chain rule
- C.9 Fractional powers of operators and Levy stable variables
- Bibliography
- Index.