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Author: Dr Sujaul Chowdhury Publisher: GRIN Verlag ISBN: 3656475725 Category : Science Languages : en Pages : 181
Book Description
Master's Thesis from the year 2011 in the subject Physics - Quantum Physics, Shahjalal University of Science and Technology (Department of Physics), course: Nanostructure Physics, language: English, abstract: This book contains a comprehensive account of application of WKB method to pure Physics of nanostructures containing single or symmetric double barrier V(x) in their band model in presence of longitudinal magnetic field applied along x direction. It concentrates on effects on transmission coefficient of single and symmetric double barriers by three dimensional electron gas (3DEG). Analytical expressions for longitudinal magnetic field dependent transmission coefficient of single and symmetric double barrier of general shape are obtained first. These general expressions are then used to obtain analytical expressions of longitudinal magnetic field dependent transmission coefficient of single and symmetric double barriers of many different shapes we encounter in studying nanostructure Physics. This is followed by thorough numerical investigation to bring out effects of longitudinal magnetic field on transmission coefficient of all these barriers. Comparisons with standard results where available showed excellent agreements. Results of numerical investigation have been explained completely. The book makes well documented, with thorough calculation and discussion, pure Physics of semiconductor nanostructures.
Author: Dr Sujaul Chowdhury Publisher: GRIN Verlag ISBN: 3656475725 Category : Science Languages : en Pages : 181
Book Description
Master's Thesis from the year 2011 in the subject Physics - Quantum Physics, Shahjalal University of Science and Technology (Department of Physics), course: Nanostructure Physics, language: English, abstract: This book contains a comprehensive account of application of WKB method to pure Physics of nanostructures containing single or symmetric double barrier V(x) in their band model in presence of longitudinal magnetic field applied along x direction. It concentrates on effects on transmission coefficient of single and symmetric double barriers by three dimensional electron gas (3DEG). Analytical expressions for longitudinal magnetic field dependent transmission coefficient of single and symmetric double barrier of general shape are obtained first. These general expressions are then used to obtain analytical expressions of longitudinal magnetic field dependent transmission coefficient of single and symmetric double barriers of many different shapes we encounter in studying nanostructure Physics. This is followed by thorough numerical investigation to bring out effects of longitudinal magnetic field on transmission coefficient of all these barriers. Comparisons with standard results where available showed excellent agreements. Results of numerical investigation have been explained completely. The book makes well documented, with thorough calculation and discussion, pure Physics of semiconductor nanostructures.
Author: Sujaul Chowdhury Publisher: American Academic Press ISBN: 1631817337 Category : Science Languages : en Pages : 129
Book Description
The book deals with pure Nanostructure Physics of a Quantum Well (QW) of general shape adjacent to a tunnel barrier of general shape. On the other side of the QW, we have a barrier of semi-infinite thickness. Using WKB approximation method, the book presents thorough and complete analytical calculations leading to 2 transcendental equations obeyed by quasi-bound energy levels of the non-isolated QW. The 2 general equations have been applied to the cases when the tunnel barrier is rectangular, moderately biased rectangular, triangular and Schottky barrier. Thorough numerical investigations have been reported to bring out parametric variations of the energy levels. For some values of tunnel barrier height and width, the energy levels split into doublets. The book contains a thorough introduction to WKB method; the book also contains necessary background on Microelectronics and Nanostructure Physics to enable readers assimilate the book completely. The 1st 3 chapters are introductory while chapter 4 and 5 are exclusive and original contributions of the book.
Author: Bodrul Haque Ruhel Publisher: LAP Lambert Academic Publishing ISBN: 9783838373829 Category : Languages : en Pages : 200
Book Description
The work provides a thorough illustration of use of WKB method to barrier transmission problem. On reading the book, the reader will be adept in using the method. Single and symmetric double barriers of general shape are treated first. Then single and symmetric double barriers of many different shapes we encounter in studying Nanostructure Physics are covered. Complete analytical calculation and results of extensive numerical investigation are reported along with comparison with standard results where available showing excellent agreement.
Author: Dr Sujaul Chowdhury Publisher: ISBN: 9783656476825 Category : Languages : en Pages : 188
Book Description
Master's Thesis from the year 2011 in the subject Physics - Quantum Physics, grade: -, Shahjalal University of Science and Technology (Department of Physics), course: Nanostructure Physics, language: English, abstract: This book contains a comprehensive account of application of WKB method to pure Physics of nanostructures containing single or symmetric double barrier V(x) in their band model in presence of longitudinal magnetic field applied along x direction. It concentrates on effects on transmission coefficient of single and symmetric double barriers by three dimensional electron gas (3DEG). Analytical expressions for longitudinal magnetic field dependent transmission coefficient of single and symmetric double barrier of general shape are obtained first. These general expressions are then used to obtain analytical expressions of longitudinal magnetic field dependent transmission coefficient of single and symmetric double barriers of many different shapes we encounter in studying nanostructure Physics. This is followed by thorough numerical investigation to bring out effects of longitudinal magnetic field on transmission coefficient of all these barriers. Comparisons with standard results where available showed excellent agreements. Results of numerical investigation have been explained completely. The book makes well documented, with thorough calculation and discussion, pure Physics of semiconductor nanostructures.
Author: Sujaul Chowdhury Publisher: GRIN Verlag ISBN: 3656395063 Category : Science Languages : en Pages : 137
Book Description
Master's Thesis from the year 2011 in the subject Physics - Other, Shahjalal University of Science and Technology (Department of Physics), course: Nanostructure Physics, language: English, abstract: The book deals with pure Nanostructure Physics; it contains thorough and complete analytical calculations leading to equation(s) obeyed by quasi-bound energy levels of non-isolated Quantum Well of symmetric rectangular double barrier as well as of symmetric double barrier of general shape. Methodology and Physics involved with the calculations is also clearly described. WKB method has been used in the case of symmetric double barrier of general shape. The book also contains necessary background on Quantum Mechanics, Microelectronics, Nanostructure Physics and WKB method to enable readers assimilate the book completely. The book explores and makes well documented, with thorough and complete calculation and discussion, pure Physics of semiconductor nanostructures.
Author: V E Borisenko Publisher: World Scientific ISBN: 9814602531 Category : Languages : en Pages : 352
Book Description
This book collects extended notes of invited review talks and short notes of contributions to Nanomeeting '97, the international conference held on 19–23 May 1997 in Minsk, Belarus. Recent progress in the physics of nanostructures, the chemistry of nanostructures, nanotechnology and nanosize devices is illlustrated. Contents: Light-Emitting II-VI Nanostructures (M Heuken et al.)Films with High Concentrations of Quantum Dots (A P Voitovich & O V Goncharova)Germanium Nanostructures Deposited by the Cluster-Beam Evaporation Technique (S Nozaki et al.)Radiation Effects in Si/Ge Nanostructures (N A Sobolev)Modern Trends in Nanoelectronic Devices (J Derrien)Technology and Performance of Diamond Field Emitters (V Raiko & J Engemann)and others (a total of more than 80 contributions) Readership: Scientists, PhD students and undergraduates in chemistry, condensed matter physics and solid state physics.
Author: Massimo V. Fischetti Publisher: Springer ISBN: 3319011014 Category : Technology & Engineering Languages : en Pages : 474
Book Description
This textbook is aimed at second-year graduate students in Physics, Electrical Engineering, or Materials Science. It presents a rigorous introduction to electronic transport in solids, especially at the nanometer scale.Understanding electronic transport in solids requires some basic knowledge of Hamiltonian Classical Mechanics, Quantum Mechanics, Condensed Matter Theory, and Statistical Mechanics. Hence, this book discusses those sub-topics which are required to deal with electronic transport in a single, self-contained course. This will be useful for students who intend to work in academia or the nano/ micro-electronics industry.Further topics covered include: the theory of energy bands in crystals, of second quantization and elementary excitations in solids, of the dielectric properties of semiconductors with an emphasis on dielectric screening and coupled interfacial modes, of electron scattering with phonons, plasmons, electrons and photons, of the derivation of transport equations in semiconductors and semiconductor nanostructures somewhat at the quantum level, but mainly at the semi-classical level. The text presents examples relevant to current research, thus not only about Si, but also about III-V compound semiconductors, nanowires, graphene and graphene nanoribbons. In particular, the text gives major emphasis to plane-wave methods applied to the electronic structure of solids, both DFT and empirical pseudopotentials, always paying attention to their effects on electronic transport and its numerical treatment. The core of the text is electronic transport, with ample discussions of the transport equations derived both in the quantum picture (the Liouville-von Neumann equation) and semi-classically (the Boltzmann transport equation, BTE). An advanced chapter, Chapter 18, is strictly related to the ‘tricky’ transition from the time-reversible Liouville-von Neumann equation to the time-irreversible Green’s functions, to the density-matrix formalism and, classically, to the Boltzmann transport equation. Finally, several methods for solving the BTE are also reviewed, including the method of moments, iterative methods, direct matrix inversion, Cellular Automata and Monte Carlo. Four appendices complete the text.
Author: V E Borisenko Publisher: World Scientific ISBN: 9814480584 Category : Technology & Engineering Languages : en Pages : 628
Book Description
This comprehensive volume presents invited reviews and short notes with exciting new results obtained in fabrication study and application of nanostructures, which promise a new generation of electronic and optoelectronic devices. The rapid progress in nanoelectronics and optoelectronics, molecular electronics and spintronics, nanotechnology and quantum processing of information are covered. Contents:Physics of NanostructuresSpintronicsChemistry of NanostructuresNanotechnologyNanostructure Based Devices Readership: Graduate students and researchers in nanoscience and nanotechnology. Keywords:Nanostructures;Nanotechnology;Quantum Computing;Bioinformatics;Nanoelectronics;Spintronics;NanophotonicsKey Features:Provides the most recent collection of results in the fieldCovers areas not presented in any other competing titleContributors are well-known specialists in the field
Author: Dr Sujaul Chowdhury
Author: Dr Sujaul Chowdhury
Author: Sujaul Chowdhury
Author: Bodrul Haque Ruhel
Author: Dr Sujaul Chowdhury
Author: Sujaul Chowdhury
Author: V E Borisenko
Author: Sergey V. Gaponenko
Author: Massimo V. Fischetti
Author: 
Author: V E Borisenko