Electronic Transport in Non-equilibrium Nanoscale Systems - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Electronic Transport in Non-equilibrium Nanoscale Systems write by Tejinder Kaur. This book was released on 2013. Electronic Transport in Non-equilibrium Nanoscale Systems available in PDF, EPUB and Kindle.
Electrical Transport in Nanoscale Systems
Electrical Transport in Nanoscale Systems - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Electrical Transport in Nanoscale Systems write by Massimiliano Di Ventra. This book was released on 2008-08-07. Electrical Transport in Nanoscale Systems available in PDF, EPUB and Kindle. In recent years there has been a huge increase in the research and development of nanoscale science and technology. Central to the understanding of the properties of nanoscale structures is the modeling of electronic conduction through these systems. This graduate textbook provides an in-depth description of the transport phenomena relevant to systems of nanoscale dimensions. In this textbook the different theoretical approaches are critically discussed, with emphasis on their basic assumptions and approximations. The book also covers information content in the measurement of currents, the role of initial conditions in establishing a steady state, and the modern use of density-functional theory. Topics are introduced by simple physical arguments, with particular attention to the non-equilibrium statistical nature of electrical conduction, and followed by a detailed formal derivation. This textbook is ideal for graduate students in physics, chemistry, and electrical engineering.
Non-Equilibrium Nano-Physics
Non-Equilibrium Nano-Physics - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Non-Equilibrium Nano-Physics write by Jonas Fransson. This book was released on 2010-07-05. Non-Equilibrium Nano-Physics available in PDF, EPUB and Kindle. The aim of this book is to present a formulation of the non-equilibrium physics in nanoscale systems in terms of many-body states and operators and, in addition, discuss a diagrammatic approach to Green functions expressed by many-body states. The intention is not to give an account of strongly correlated systems as such. Thus, the focus of this book ensues from the typical questions that arise when addressing nanoscale systems from a practical point of view, e.g. current-voltage asymmetries, negative differential conductance, spin-dependent tunneling. The focus is on nanoscale systems constituted of complexes of subsystems interacting with one another, under non-equilibrium conditions, in which the local properties of the subsystems are preferably being described in terms of its (many-body) eigenstates.
Electronic Transport at the Nanoscale
Electronic Transport at the Nanoscale - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Electronic Transport at the Nanoscale write by Alexandre Reily Rocha. This book was released on 2010-03. Electronic Transport at the Nanoscale available in PDF, EPUB and Kindle. The problem of electronic transport in systems comprising only a handful of atoms is one of the most exciting branches of nanoscience. The aim of this book is to address the issue of non-equilibrium transport at the nanoscale. At first, we lay down the theoretical framework based on Keldysh s non-equilibrium Green function formalism. We show how this formalism relates to the Landauer-Buttiker formalism for the linear regime and how the current through a nanoscopic system can be related to a rate equation for which a steady state solution can be found. This formalism can be applied with different choices of Hamiltonian. In this work we choose to work with the Hamiltonian obtained from density functional theory which provides an accurate description of the electronic structure of nanoscopic systems. The combination of NEGFs and DFT results in Smeagol, a state-of-the-art tool for calculating materials-specific electronic transport properties of molecular devices as well as interfaces and junctions. We then show some examples of how Smeagol could be used to study a variety of systems from magnetic point contacts to DNA.
The Non-Equilibrium Green's Function Method for Nanoscale Device Simulation
The Non-Equilibrium Green's Function Method for Nanoscale Device Simulation - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Non-Equilibrium Green's Function Method for Nanoscale Device Simulation write by Mahdi Pourfath. This book was released on 2014-07-05. The Non-Equilibrium Green's Function Method for Nanoscale Device Simulation available in PDF, EPUB and Kindle. For modeling the transport of carriers in nanoscale devices, a Green-function formalism is the most accurate approach. Due to the complexity of the formalism, one should have a deep understanding of the underlying principles and use smart approximations and numerical methods for solving the kinetic equations at a reasonable computational time. In this book the required concepts from quantum and statistical mechanics and numerical methods for calculating Green functions are presented. The Green function is studied in detail for systems both under equilibrium and under nonequilibrium conditions. Because the formalism enables rigorous modeling of different scattering mechanisms in terms of self-energies, but an exact evaluation of self-energies for realistic systems is not possible, their approximation and inclusion in the quantum kinetic equations of the Green functions are elaborated. All the elements of the kinetic equations, which are the device Hamiltonian, contact self-energies and scattering self-energies, are examined and efficient methods for their evaluation are explained. Finally, the application of these methods to study novel electronic devices such as nanotubes, graphene, Si-nanowires and low-dimensional thermoelectric devices and photodetectors are discussed.
