The non-equilibrium Green's function method for nanoscale device simulation /

The non-equilibrium Green's function method for nanoscale device simulation /

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Bibliographic Details
Author / Creator:	Pourfath, Mahdi, author.
Imprint:	Wien : Springer, 2014.
Description:	1 online resource (xvii, 256 pages) : illustrations (some color).
Language:	English
Series:	Computational Microelectronics, 0179-0307 Computational microelectronics,
Subject:	Green's functions. Nanoelectronics -- Mathematical models. Many-body problem. Green's functions. Many-body problem.
Format:	E-Resource Book
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/11086402

Hidden Bibliographic Details
ISBN:	9783709118009 370911800X 3709117992 9783709117996 9783709117996
Digital file characteristics:	text file PDF
Notes:	Includes bibliographical references and index. Online resource; title from PDF title page (SpringerLink, viewed July 16, 2014).
Summary:	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.
Other form:	Printed edition: 9783709117996
Standard no.:	10.1007/978-3-7091-1800-9

Table of Contents:

Review of quantum mechanics
Review of statistical mechanics
Green's function formalism
Implementation
Applications
Non-interacting Green's functions
Feynman diagrams
Variational derivation of self-energies.