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From nanostructures to nanosensing applications = Dalle nanostrutture alle applicazioni nanosensoriali /
Nanoscience and Nanotechnologies have grown increasingly fast for the last 20 years - after a somehow slow start - with an exceptional impact upon understanding of Nature, development of Science and related applications. Several new materials have been built and the possibility of tailoring their pr...
| Clasificación: | Libro Electrónico |
|---|---|
| Autores Corporativos: | , , |
| Otros Autores: | , , |
| Formato: | Electrónico Congresos, conferencias eBook |
| Idioma: | Inglés |
| Publicado: |
Amsterdam ; Oxford :
IOS Press,
2005.
|
| Colección: | Proceedings of the International School of Physics "Enrico Fermi",
course 160 |
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Title Page
- Indice
- Preface
- Gruppo fotografico dei partecipanti al Corso
- Spin dephasing and ''hot spins''
- Introduction
- NEGF method
- What constitutes a dephasing process?
- Proposed ''spin-charge transducer''
- Spin valve with magnetic impurities
- Hot-spin effect
- NEGF equations: A summary
- Inputs to the NEGF model
- NEGF equations
- NEGF model: Spin valve with impurities
- Channel
- Contacts
- Current
- Green function, spectral function and the correlation function
- Spin-flip current
- NEGF vs. equivalent circuit
- ''Hot spin'' effect.
- Dynamic polarization of impurities
- Time constant for impurity polarization
- Concluding remarks
- Appendix A. Dephasing in the NEGF formalism
- Evaluating Dn and Dp using eqs (A.4)
- Appendix B. MATLAB codes used to generate text figures
- Ginzburg-Landau phenomenology: its role in the modern theory of superconductivity and studies of nanograin properties
- Introduction
- Qualitative picture of fluctuations in superconductors
- Ginzburg-Landau theory
- GL functional
- Heat capacity jump
- GL equations
- Fluctuation contribution to heat capacity of the superconducting nanograin.
- Ultrasmall superconducting grains
- Superconducting drops in system with quenched disorder: the smearing of the superconducting transition
- Josephson coupled superconducting grains and drops
- Classical phase transition in granular superconductors
- XY-model for granular superconductor
- GL description of the granular superconductor
- The broadening of the superconducting transition by quenched disorder
- Percolation superconductivity in granular and drop systems
- Wigner transport in the presence of phonons: Particle models of electron kinetics
- Introduction.
- Classical and quantum distribution functions
- Classical statistical mechanics
- The Weyl transform
- The density matrix
- The Wigner function for pure state
- Properties of the Wigner function
- Classical limit of the Wigner equation
- Quantum-statistical mechanics
- Appendix
- Generalized Wigner function of the coupled electron-phonon system
- Weak coupling and equilibrium phonons approximations
- Weak coupling
- Equilibrium phonon averages
- Models for the electron Wigner function
- Main model for the electron Wigner function
- The Levinson equation.
- Collisional broadening and retardation
- The intra-collisional field effect (ICFE)
- Approximate model for the reduced WF
- Classical limit in the electron-phonon interaction
- Particle models for the Wigner-Boltzmann equation
- Concepts of Monte Carlo method
- Random variable
- Evaluation of integrals
- Evaluation of integral equations
- Physical averages in the stationary Wigner-Boltzmann transport: probabilistic analysis
- Formulation and reformulation of the transport problem
- Integro-differential form revised
- Integral form
- Adjoint equation
- Analysis of A.