Nanostructure Physics Of A Quantum Well Adjacent To A Tunnel Barrier

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Nanostructure Physics of a Quantum Well adjacent to a tunnel barrier

Author : Dr Sujaul Chowdhury
Publisher : GRIN Verlag
ISBN 13 : 3656658668
Total Pages : 102 pages
Book Rating : 4.6/5 (566 download)

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Book Synopsis Nanostructure Physics of a Quantum Well adjacent to a tunnel barrier by : Dr Sujaul Chowdhury

Download or read book Nanostructure Physics of a Quantum Well adjacent to a tunnel barrier written by Dr Sujaul Chowdhury and published by GRIN Verlag. This book was released on 2014-05-22 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2014 in the subject Physics - Quantum Physics, Shahjalal University of Science and Technology (Department of Physics), course: Nanostructure Physics, language: English, abstract: We have investigated Nanostructure Physics of a Quantum Well (QW) adjacent to a tunnel barrier. On the other side of the QW, we have a barrier layer of semi-infinite thickness. The book contains thorough and complete analytical calculations leading to two transcendental equations obeyed by quasi-bound energy levels of the QW. The book also contains numerical investigation of parametric variations of the quasi-bound energy levels. The variations are quite unexpected. For some values of tunnel barrier width and height, each quasi-bound energy level yields two allowed energy levels. The two equations reduce to those for isolated QW in proper limiting values of parameters. The book contains necessary background on Quantum Mechanics, Microelectronics and Nanostructure Physics to enable readers assimilate the book completely.

WKB METHOD IN NANOSTRUCTURE PHYSICS OF A QUANTUM WELL ADJACENT TO A TUNNEL BARRIER OF GENERAL SHAPE

Author : Sujaul Chowdhury
Publisher : American Academic Press
ISBN 13 : 1631817337
Total Pages : 131 pages
Book Rating : 4.6/5 (318 download)

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Book Synopsis WKB METHOD IN NANOSTRUCTURE PHYSICS OF A QUANTUM WELL ADJACENT TO A TUNNEL BARRIER OF GENERAL SHAPE by : Sujaul Chowdhury

Download or read book WKB METHOD IN NANOSTRUCTURE PHYSICS OF A QUANTUM WELL ADJACENT TO A TUNNEL BARRIER OF GENERAL SHAPE written by Sujaul Chowdhury and published by American Academic Press. This book was released on 2015-02-09 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Nanostructure Physics of non-isolated Quantum Well of symmetric double barrier

Author : Sujaul Chowdhury
Publisher : GRIN Verlag
ISBN 13 : 3656395063
Total Pages : 140 pages
Book Rating : 4.6/5 (563 download)

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Book Synopsis Nanostructure Physics of non-isolated Quantum Well of symmetric double barrier by : Sujaul Chowdhury

Download or read book Nanostructure Physics of non-isolated Quantum Well of symmetric double barrier written by Sujaul Chowdhury and published by GRIN Verlag. This book was released on 2013-03-20 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Numerical Exploration of Isolated GaAs-AlGaAs Quantum Well

Author : Sujaul Chowdhury
Publisher : Springer Nature
ISBN 13 : 3031538161
Total Pages : 97 pages
Book Rating : 4.0/5 (315 download)

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Book Synopsis Numerical Exploration of Isolated GaAs-AlGaAs Quantum Well by : Sujaul Chowdhury

Download or read book Numerical Exploration of Isolated GaAs-AlGaAs Quantum Well written by Sujaul Chowdhury and published by Springer Nature. This book was released on with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nanostructure Physics of Isolated Quantum Well

Author : Saumitra Singha Dash
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783838377469
Total Pages : 200 pages
Book Rating : 4.3/5 (774 download)

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Book Synopsis Nanostructure Physics of Isolated Quantum Well by : Saumitra Singha Dash

Download or read book Nanostructure Physics of Isolated Quantum Well written by Saumitra Singha Dash and published by LAP Lambert Academic Publishing. This book was released on 2010-06 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have studied Physics of a Nanostructure called Quantum Well (QW). We have numerically calculated confined energy levels of electrons, light holes and heavy holes in isolated GaAs-AlGaAs QWs of various widths and depths. We have presented both graphically as well as in the form of data tables variation of the energy levels as width and depth of QW are varied. We find that the values and variations of energy are exactly the same as the values and variations of energy of resonant transmission peaks of symmetric rectangular double barrier. Surprisingly, this is exact numerical agreement. The agreement remains exact even if we take effects of effective mass inequality into account. The book is self-contained; it contains necessary Nanostructure Physics, Microelectronics, Quantum Mechanics, as well as results for symmetric rectangular double barrier for ready reference. Interested reader will be able to assimilate the book completely.

Physics of Semiconductors and Nanostructures

Author : Jyoti Prasad Banerjee
Publisher : CRC Press
ISBN 13 : 1482223066
Total Pages : 413 pages
Book Rating : 4.4/5 (822 download)

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Book Synopsis Physics of Semiconductors and Nanostructures by : Jyoti Prasad Banerjee

Download or read book Physics of Semiconductors and Nanostructures written by Jyoti Prasad Banerjee and published by CRC Press. This book was released on 2019-06-11 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive text on the physics of semiconductors and nanostructures for a large spectrum of students at the final undergraduate level studying physics, material science and electronics engineering. It offers introductory and advanced courses on solid state and semiconductor physics on one hand and the physics of low dimensional semiconductor structures on the other in a single text book. Key Features Presents basic concepts of quantum theory, solid state physics, semiconductors, and quantum nanostructures such as quantum well, quantum wire, quantum dot and superlattice In depth description of semiconductor heterojunctions, lattice strain and modulation doping technique Covers transport in nanostructures under an electric and magnetic field with the topics: quantized conductance, Coulomb blockade, and integer and fractional quantum Hall effect Presents the optical processes in nanostructures under a magnetic field Includes illustrative problems with hints for solutions in each chapter Physics of Semiconductors and Nanostructures will be helpful to students initiating PhD work in the field of semiconductor nanostructures and devices. It follows a unique tutorial approach meeting the requirements of students who find learning the concepts difficult and want to study from a physical perspective.

COUPLED QUANTUM WELL IN LONGITUDINAL MAGNETIC FIELD

Author : Uttam Kumar Chowdhury
Publisher : American Academic Press
ISBN 13 : 1631818198
Total Pages : 154 pages
Book Rating : 4.6/5 (318 download)

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Book Synopsis COUPLED QUANTUM WELL IN LONGITUDINAL MAGNETIC FIELD by : Uttam Kumar Chowdhury

Download or read book COUPLED QUANTUM WELL IN LONGITUDINAL MAGNETIC FIELD written by Uttam Kumar Chowdhury and published by American Academic Press. This book was released on 2017-02-22 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book deals with pure Nanostructure Physics of tunneling regime of GaAs-AlGaAs Coupled Quantum Well (CQW) in presence of magnetic field perpendicular to GaAs-AlGaAs interfaces. The book presents thorough and complete analytical calculations leading to a transcendental equation obeyed by the magnetic field dependent quasi-bound energy levels of CQW. Thorough numerical investigations are reported to bring out effects of the magnetic field on the quasi-bound energy levels. The effects have been successfully and completely explained in terms of a magnetic field dependent effective potential. The book has comprehensive analytical and numerical account of the problem. The book contains background on Quantum Mechanics, Microelectronics, Nanostructure Physics and Classical Mechanics to enable readers assimilate the book completely.

Physics, Chemistry And Application Of Nanostructures - Review And Short Notes To Nanomeeting ’97

Author : Victor E Borisenko
Publisher : World Scientific
ISBN 13 : 9814602531
Total Pages : 354 pages
Book Rating : 4.8/5 (146 download)

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Book Synopsis Physics, Chemistry And Application Of Nanostructures - Review And Short Notes To Nanomeeting ’97 by : Victor E Borisenko

Download or read book Physics, Chemistry And Application Of Nanostructures - Review And Short Notes To Nanomeeting ’97 written by Victor E Borisenko and published by World Scientific. This book was released on 1997-04-11 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Electron transmission through non-tunneling regime of GaAs-AlGaAs Coupled Quantum Wells

Author : Sujaul Chowdhury
Publisher : GRIN Verlag
ISBN 13 : 3668526044
Total Pages : 10 pages
Book Rating : 4.6/5 (685 download)

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Book Synopsis Electron transmission through non-tunneling regime of GaAs-AlGaAs Coupled Quantum Wells by : Sujaul Chowdhury

Download or read book Electron transmission through non-tunneling regime of GaAs-AlGaAs Coupled Quantum Wells written by Sujaul Chowdhury and published by GRIN Verlag. This book was released on 2017-09-17 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Paper (postgraduate) from the year 2017 in the subject Physics - Quantum Physics, grade: 4.00, Shahjalal University of Science and Technology, course: Nanostructure Physics, language: English, abstract: We have investigated electron transmission through non-tunneling regime of a semiconductor nanostructure called Coupled Quantum Well (CQW). Oscillatory transmission coefficient as a function of energy is found to show spectacular waxing and waning in amplitude. Corresponding features are expected to be observed in optical (Physical Review B 54 (1996) 1541) and quantum transport (Physical Review Letters 58 (1987) 816) experiments and hence the results besides verifying the Physics will have impact on future devices based on CQW.

Nanostructure Science and Technology

Author : Richard W. Siegel
Publisher : Springer Science & Business Media
ISBN 13 : 9401591857
Total Pages : 354 pages
Book Rating : 4.4/5 (15 download)

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Book Synopsis Nanostructure Science and Technology by : Richard W. Siegel

Download or read book Nanostructure Science and Technology written by Richard W. Siegel and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Timely information on scientific and engineering developments occurring in laboratories around the world provides critical input to maintaining the economic and technological strength of the United States. Moreover, sharing this information quickly with other countries can greatly enhance the productivity of scientists and engineers. These are some of the reasons why the National Science Foundation (NSF) has been involved in funding science and technology assessments comparing the United States and foreign countries since the early 1980s. A substantial number of these studies have been conducted by the World Technology Evaluation Center (WTEC) managed by Loyola College through a cooperative agreement with NSF. The National Science and Technology Council (NSTC), Committee on Technology's Interagency Working Group on NanoScience, Engineering and Technology (CT/IWGN) worked with WTEC to develop the scope of this Nanostucture Science and Technology report in an effort to develop a baseline of understanding for how to strategically make Federal nanoscale R&D investments in the coming years. The purpose of the NSTC/WTEC activity is to assess R&D efforts in other countries in specific areas of technology, to compare these efforts and their results to U. S. research in the same areas, and to identify opportunities for international collaboration in precompetitive research. Many U. S. organizations support substantial data gathering and analysis efforts focusing on nations such as Japan. But often the results of these studies are not widely available. At the same time, government and privately sponsored studies that are in the public domain tend to be "input" studies.

Epitaxy of Nanostructures

Author : Vitaly Shchukin
Publisher : Springer Science & Business Media
ISBN 13 : 3662070669
Total Pages : 392 pages
Book Rating : 4.6/5 (62 download)

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Book Synopsis Epitaxy of Nanostructures by : Vitaly Shchukin

Download or read book Epitaxy of Nanostructures written by Vitaly Shchukin and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main focus of the book are the physical mechanisms behind the spontaneous formation of ordered nanostructures at semiconductor surfaces. These mechanisms are at the root of recent breakthroughs in advanced nanotechnology of quantum-wire and quantum-dot fabrication. Generic theoretical models are presented addressing formation of all basic types of nanostructures, including periodically faceted surfaces, arrays of step-bunches of equal heights and single- and multi-sheet arrays of both 2- and 3-D strained islands. Decisive experiments on both structural and optical characterization of nanostructures are discussed to verify theoretical models and link them to practical examples.

One-Dimensional Nanostructures

Author : Tianyou Zhai
Publisher : John Wiley & Sons
ISBN 13 : 1118310365
Total Pages : 857 pages
Book Rating : 4.1/5 (183 download)

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Book Synopsis One-Dimensional Nanostructures by : Tianyou Zhai

Download or read book One-Dimensional Nanostructures written by Tianyou Zhai and published by John Wiley & Sons. This book was released on 2012-10-19 with total page 857 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews the latest research breakthroughs and applications Since the discovery of carbon nanotubes in 1991, one-dimensional nanostructures have been at the forefront of nanotechnology research, promising to provide the building blocks for a new generation of nanoscale electronic and optoelectronic devices. With contributions from 68 leading international experts, this book reviews both the underlying principles as well as the latest discoveries and applications in the field, presenting the state of the technology. Readers will find expert coverage of all major classes of one-dimensional nanostructures, including carbon nanotubes, semiconductor nanowires, organic molecule nanostructures, polymer nanofibers, peptide nanostructures, and supramolecular nanostructures. Moreover, the book offers unique insights into the future of one-dimensional nanostructures, with expert forecasts of new research breakthroughs and applications. One-Dimensional Nanostructures collects and analyzes a wealth of key research findings and applications, with detailed coverage of: Synthesis Properties Energy applications Photonics and optoelectronics applications Sensing, plasmonics, electronics, and biosciences applications Practical case studies demonstrate how the latest applications work. Tables throughout the book summarize key information, and diagrams enable readers to grasp complex concepts and designs. References at the end of each chapter serve as a gateway to the literature in the field. With its clear explanations of the underlying principles of one-dimensional nanostructures, this book is ideal for students, researchers, and academics in chemistry, physics, materials science, and engineering. Moreover, One-Dimensional Nanostructures will help readers advance their own investigations in order to develop the next generation of applications.

Effective Mass Inequality in Nanostructure Physics

Author : Anupom Tutul Chowdhury
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783838376783
Total Pages : 148 pages
Book Rating : 4.3/5 (767 download)

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Book Synopsis Effective Mass Inequality in Nanostructure Physics by : Anupom Tutul Chowdhury

Download or read book Effective Mass Inequality in Nanostructure Physics written by Anupom Tutul Chowdhury and published by LAP Lambert Academic Publishing. This book was released on 2010-06 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have demonstrated Physics for which we need to modify boundary condition to be used in matching solutions of Schroedinger equation at finite potential discontinuities i.e. at interfaces between barrier and quantum well materials, because of difference of effective mass of electron in their conduction bands. Using the modified boundary condition, we have presented thorough and complete analytical calculation of transmission coefficient of nanostructures called single rectangular tunnel barrier and symmetric rectangular double barrier. We have presented numerical investigations for the two nanostructures. We find that parametric dependences of energy of resonant transmission peaks of the double barrier do not change qualitatively because of taking effective mass inequality into account; but we find changes in energy and in full width at half maxima (FWHM) of the resonant peaks. The book is self contained; it contains necessary Nanostructure Physics, Microelectronics and Quantum Mechanics to enable interested reader assimilate the book completely.

Quantum Mechanics for Nanostructures

Author : Vladimir Vasilʹevich Mitin
Publisher : Cambridge University Press
ISBN 13 : 0521763665
Total Pages : 449 pages
Book Rating : 4.5/5 (217 download)

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Book Synopsis Quantum Mechanics for Nanostructures by : Vladimir Vasilʹevich Mitin

Download or read book Quantum Mechanics for Nanostructures written by Vladimir Vasilʹevich Mitin and published by Cambridge University Press. This book was released on 2010-05-20 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Textbook introducing engineers to quantum mechanics and nanostructures, covering the fundamentals and applications to nanoscale materials and nanodevices.

Dissipative Quantum Mechanics of Nanostructures

Author : Andrei D. Zaikin
Publisher : CRC Press
ISBN 13 : 1000024202
Total Pages : 393 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Dissipative Quantum Mechanics of Nanostructures by : Andrei D. Zaikin

Download or read book Dissipative Quantum Mechanics of Nanostructures written by Andrei D. Zaikin and published by CRC Press. This book was released on 2019-05-24 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuing miniaturization of electronic devices, together with the quickly growing number of nanotechnological applications, demands a profound understanding of the underlying physics. Most of the fundamental problems of modern condensed matter physics involve various aspects of quantum transport and fluctuation phenomena at the nanoscale. In nanostructures, electrons are usually confined to a limited volume and interact with each other and lattice ions, simultaneously suffering multiple scattering events on impurities, barriers, surface imperfections, and other defects. Electron interaction with other degrees of freedom generally yields two major consequences, quantum dissipation and quantum decoherence. In other words, electrons can lose their energy and ability for quantum interference even at very low temperatures. These two different, but related, processes are at the heart of all quantum phenomena discussed in this book. This book presents copious details to facilitate the understanding of the basic physics behind a result and the learning to technically reproduce the result without delving into extra literature. The book subtly balances the description of theoretical methods and techniques and the display of the rich landscape of the physical phenomena that can be accessed by these methods. It is useful for a broad readership ranging from master’s and PhD students to postdocs and senior researchers.

Nanostructure Physics and Fabrication

Author : Mark A. Reed
Publisher : Elsevier
ISBN 13 : 0323138950
Total Pages : 538 pages
Book Rating : 4.3/5 (231 download)

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Book Synopsis Nanostructure Physics and Fabrication by : Mark A. Reed

Download or read book Nanostructure Physics and Fabrication written by Mark A. Reed and published by Elsevier. This book was released on 2012-12-02 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructure Physics and Fabrication contains the contributions of an interdisciplinary group of specialists in nanometer scale fabrication, physics of mesoscopic systems, electronic transport, and materials science brought together to discuss the current status of nanometer scale electronic structures. These articles provide the most current assessment of this active and growing area of interest. The introductory chapter provides comments and background material for those somewhat unfamiliar with this new area of research and serves as a condensed overview and summary of the contributions that follow. - Most current assessment of the field - Articles by experts in the field - Results presented here will impact the future of microelectronics

Longitudinal Magnetic Field in WKB Method in Nanostructure Physics

Author : Dr Sujaul Chowdhury
Publisher : GRIN Verlag
ISBN 13 : 3656475725
Total Pages : 184 pages
Book Rating : 4.6/5 (564 download)

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Book Synopsis Longitudinal Magnetic Field in WKB Method in Nanostructure Physics by : Dr Sujaul Chowdhury

Download or read book Longitudinal Magnetic Field in WKB Method in Nanostructure Physics written by Dr Sujaul Chowdhury and published by GRIN Verlag. This book was released on 2013-08-07 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.