Hybrid Phonons In Nanostructures

Download Hybrid Phonons In Nanostructures full books in PDF, epub, and Kindle. Read online Hybrid Phonons In Nanostructures ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!

Hybrid Phonons in Nanostructures

Author : B. K. Ridley
Publisher : Oxford University Press
ISBN 13 : 0198788363
Total Pages : 205 pages
Book Rating : 4.1/5 (987 download)

DOWNLOAD NOW!

Book Synopsis Hybrid Phonons in Nanostructures by : B. K. Ridley

Download or read book Hybrid Phonons in Nanostructures written by B. K. Ridley and published by Oxford University Press. This book was released on 2017 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a technical account of the basic physics of nanostructures, which are the foundation of the hardware found in all manner of computers. It will be of interest to semiconductor physicists and electronic engineers and advanced research students. Crystalline nanostructures have special properties associated with electrons and lattice vibrations and their interaction. The result of spatial confinement of electrons is indicated in the nomenclature of nanostructures: quantum wells, quantum wires, quantum dots. Confinement also has a profound effect on lattice vibrations. The documentation of the confinement of acoustic modes goes back to Lord Rayleigh's work in the late nineteenth century, but no such documentation exists for optical modes. It is only comparatively recently that any theory of the elastic properties of optical modes exists, and a comprehensive account is given in this book. A model of the lattice dynamics of the diamond lattice is given that reveals the quantitative distinction between acoustic and optical modes and the difference of connection rules that must apply at an interface. The presence of interfaces in nanostructures forces the hybridization of longitudinally and transversely polarized modes, along with, in polar material, electromagnetic modes. Hybrid acoustic and optical modes are described, with an emphasis on polar-optical phonons and their interaction with electrons. Scattering rates in single heterostructures, quantum wells and quantum wires are described and the anharmonic interaction in quantum dots discussed. A description is given of the effects of dynamic screening of hybrid polar modes and the production of hot phonons.

Hybrid Phonons in Nanostructures

Author : Brian K. Ridley
Publisher : Oxford University Press
ISBN 13 : 0191092584
Total Pages : 160 pages
Book Rating : 4.1/5 (91 download)

DOWNLOAD NOW!

Book Synopsis Hybrid Phonons in Nanostructures by : Brian K. Ridley

Download or read book Hybrid Phonons in Nanostructures written by Brian K. Ridley and published by Oxford University Press. This book was released on 2017-03-09 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a technical account of the basic physics of nanostructures, which are the foundation of the hardware found in all manner of computers. It will be of interest to semiconductor physicists and electronic engineers and advanced research students. Crystalline nanostructures have special properties associated with electrons and lattice vibrations and their interaction. The result of spatial confinement of electrons is indicated in the nomenclature of nanostructures: quantum wells, quantum wires, quantum dots. Confinement also has a profound effect on lattice vibrations. The documentation of the confinement of acoustic modes goes back to Lord Rayleigh's work in the late nineteenth century, but no such documentation exists for optical modes. It is only comparatively recently that any theory of the elastic properties of optical modes exists, and a comprehensive account is given in this book. A model of the lattice dynamics of the diamond lattice is given that reveals the quantitative distinction between acoustic and optical modes and the difference of connection rules that must apply at an interface. The presence of interfaces in nanostructures forces the hybridization of longitudinally and transversely polarized modes, along with, in polar material, electromagnetic modes. Hybrid acoustic and optical modes are described, with an emphasis on polar-optical phonons and their interaction with electrons. Scattering rates in single heterostructures, quantum wells and quantum wires are described and the anharmonic interaction in quantum dots discussed. A description is given of the effects of dynamic screening of hybrid polar modes and the production of hot phonons.

Phonons in Semiconductor Nanostructures

Author : J.P. Leburton
Publisher : Springer
ISBN 13 : 0792322770
Total Pages : 509 pages
Book Rating : 4.7/5 (923 download)

DOWNLOAD NOW!

Book Synopsis Phonons in Semiconductor Nanostructures by : J.P. Leburton

Download or read book Phonons in Semiconductor Nanostructures written by J.P. Leburton and published by Springer. This book was released on 1993-04-30 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last ten years, the physics and technology of low dimensional structures has experienced a tremendous development. Quantum structures with vertical and lateral confinements are now routinely fabricated with feature sizes below 100 run. While quantization of the electron states in mesoscopic systems has been the subject of intense investigation, the effect of confinement on lattice vibrations and its influence on the electron-phonon interaction and energy dissipation in nanostructures received atten tion only recently. This NATO Advanced Research Workshop on Phonons in Sem iconductor Nanostructures was a forum for discussion on the latest developments in the physics of phonons and their impact on the electronic properties of low-dimensional structures. Our goal was to bring together specialists in lattice dynamics and nanos tructure physics to assess the increasing importance of phonon effects on the physical properties of one-(lD) and zero-dimensional (OD) structures. The Workshop addressed various issues related to phonon physics in III-V, II-VI and IV semiconductor nanostructures. The following topics were successively covered: Models for confined phonons in semiconductor nanostructures, latest experimental observations of confined phonons and electron-phonon interaction in two-dimensional systems, elementary excitations in nanostructures, phonons and optical processes in reduced dimensionality systems, phonon limited transport phenomena, hot electron effects in quasi - ID structures, carrier relaxation and phonon bottleneck in quantum dots.

Phonons in Nanostructures

Author : Michael A. Stroscio
Publisher : Cambridge University Press
ISBN 13 : 9780521018050
Total Pages : 292 pages
Book Rating : 4.0/5 (18 download)

DOWNLOAD NOW!

Book Synopsis Phonons in Nanostructures by : Michael A. Stroscio

Download or read book Phonons in Nanostructures written by Michael A. Stroscio and published by Cambridge University Press. This book was released on 2005-08-22 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the theory of phonon interactions in nanoscale structures with particular emphasis on modern electronic and optoelectronic devices. A key goal is to describe tractable models of confined phonons and how these are applied to calculations of basic properties and phenomena of semiconductor heterostructures. The level of presentation is appropriate for undergraduate and graduate students in physics and engineering with some background in quantum mechanics and solid state physics or devices.

Phonon Focusing and Phonon Transport

Author : Igor Gaynitdinovich Kuleyev
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 311067050X
Total Pages : 221 pages
Book Rating : 4.1/5 (16 download)

DOWNLOAD NOW!

Book Synopsis Phonon Focusing and Phonon Transport by : Igor Gaynitdinovich Kuleyev

Download or read book Phonon Focusing and Phonon Transport written by Igor Gaynitdinovich Kuleyev and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-06-08 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: The monograph is devoted to the investigation of physical processes that govern the phonon transport in bulk and nanoscale single-crystal samples of cubic symmetry. Special emphasis is given to the study of phonon focusing in cubic crystals and its influence on the boundary scattering and lattice thermal conductivity of bulk materials and nanostructures.

Phonons in Low Dimensional Structures

Author : Vasilios N. Stavrou
Publisher : BoD – Books on Demand
ISBN 13 : 1789846269
Total Pages : 176 pages
Book Rating : 4.7/5 (898 download)

DOWNLOAD NOW!

Book Synopsis Phonons in Low Dimensional Structures by : Vasilios N. Stavrou

Download or read book Phonons in Low Dimensional Structures written by Vasilios N. Stavrou and published by BoD – Books on Demand. This book was released on 2018-12-12 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of low-dimensional structures has been experiencing rapid development in both theoretical and experimental research. Phonons in Low Dimensional Structures is a collection of chapters related to the properties of solid-state structures dependent on lattice vibrations. The book is divided into two parts. In the first part, research topics such as interface phonons and polaron states, carrier-phonon non-equilibrium dynamics, directional projection of elastic waves in parallel array of N elastically coupled waveguides, collective dynamics for longitudinal and transverse phonon modes, and elastic properties for bulk metallic glasses are related to semiconductor devices and metallic glasses devices. The second part of the book contains, among others, topics related to superconductor, phononic crystal carbon nanotube devices such as phonon dispersion calculations using density functional theory for a range of superconducting materials, phononic crystal-based MEMS resonators, absorption of acoustic phonons in the hyper-sound regime in fluorine-modified carbon nanotubes and single-walled nanotubes, phonon transport in carbon nanotubes, quantization of phonon thermal conductance, and phonon Anderson localization.

Phonon Interactions in Novel Semiconductor Nanostructures

Author :
Publisher :
ISBN 13 :
Total Pages : 109 pages
Book Rating : 4.:/5 (227 download)

DOWNLOAD NOW!

Book Synopsis Phonon Interactions in Novel Semiconductor Nanostructures by :

Download or read book Phonon Interactions in Novel Semiconductor Nanostructures written by and published by . This book was released on 1996 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: During this research effort, numerous interactions of confined phonons in nanostructures have been modelled theoretically; these include: piezoelectric scattering in cylindrical quantum wires; generalized piezoelectric scattering rate for elections in a two-dimensional election gas; Gamma-X transitions driven by interface phonons; interface optical modes in cylindrical quantum wires; microscopic model for election-optical-phonon interactions in quantum wells; optical phonons in quantum dots; electron-acoustic-phonon scattering in both rectangular and cylindrical quantum wires; and acoustic modes in quantum wires and dots.

The Physics of Phonons

Author : G.P Srivastava
Publisher : Routledge
ISBN 13 : 1351409549
Total Pages : 394 pages
Book Rating : 4.3/5 (514 download)

DOWNLOAD NOW!

Book Synopsis The Physics of Phonons by : G.P Srivastava

Download or read book The Physics of Phonons written by G.P Srivastava and published by Routledge. This book was released on 2019-07-16 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: There have been few books devoted to the study of phonons, a major area of condensed matter physics. The Physics of Phonons is a comprehensive theoretical discussion of the most important topics, including some topics not previously presented in book form. Although primarily theoretical in approach, the author refers to experimental results wherever possible, ensuring an ideal book for both experimental and theoretical researchers. The author begins with an introduction to crystal symmetry and continues with a discussion of lattice dynamics in the harmonic approximation, including the traditional phenomenological approach and the more recent ab initio approach, detailed for the first time in this book. A discussion of anharmonicity is followed by the theory of lattice thermal conductivity, presented at a level far beyond that available in any other book. The chapter on phonon interactions is likewise more comprehensive than any similar discussion elsewhere. The sections on phonons in superlattices, impure and mixed crystals, quasicrystals, phonon spectroscopy, Kapitza resistance, and quantum evaporation also contain material appearing in book form for the first time. The book is complemented by numerous diagrams that aid understanding and is comprehensively referenced for further study. With its unprecedented wide coverage of the field, The Physics of Phonons will be indispensable to all postgraduates, advanced undergraduates, and researchers working on condensed matter physics.

Phonons In Nanostructures

Author : M.A. Stroscio
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)

DOWNLOAD NOW!

Book Synopsis Phonons In Nanostructures by : M.A. Stroscio

Download or read book Phonons In Nanostructures written by M.A. Stroscio and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Interface Phonons and Polaron States in Quantum Nanostructures

Author : Aleksandr Yu Maslov
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)

DOWNLOAD NOW!

Book Synopsis Interface Phonons and Polaron States in Quantum Nanostructures by : Aleksandr Yu Maslov

Download or read book Interface Phonons and Polaron States in Quantum Nanostructures written by Aleksandr Yu Maslov and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The interface optical phonons arise near the hetero-interface of a quantum nanostructure. Moreover, its spectrum and dispersion laws may differ from ones for excitations arising in the bulk materials. The study of such excitations can give fundamentally new information about the optical and transport properties of nanostructures. The interaction of charged particles with polar optical phonons can lead to the large radius polaron creation in the materials with high ionicity. This chapter deals with the results of our theoretical investigations of the polaron states in quantum wells, quantum wires, and quantum dots. The charged particle and exciton interaction with both bulk and interface optical phonons are taken into account. The original method has been developed taking into consideration an interface phonon influence. The enhancement conditions are found for both strong and weak interactions. It is established that the barrier material dielectric properties give a decisive contribution to the polaron binding energy value for strong electron-phonon interaction. The manifestation of strong polaron effects is a pronounced demonstration of the interface optical phonon influence on optical and transport properties of nanostructures.

Length-Scale Dependent Phonon Interactions

Author : Subhash L. Shindé
Publisher : Springer Science & Business Media
ISBN 13 : 1461486513
Total Pages : 304 pages
Book Rating : 4.4/5 (614 download)

DOWNLOAD NOW!

Book Synopsis Length-Scale Dependent Phonon Interactions by : Subhash L. Shindé

Download or read book Length-Scale Dependent Phonon Interactions written by Subhash L. Shindé and published by Springer Science & Business Media. This book was released on 2013-10-29 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive description of phonons and their interactions in systems with different dimensions and length scales. Internationally-recognized leaders describe theories and measurements of phonon interactions in relation to the design of materials with exotic properties such as metamaterials, nano-mechanical systems, next-generation electronic, photonic, and acoustic devices, energy harvesting, optical information storage, and applications of phonon lasers in a variety of fields. The emergence of techniques for control of semiconductor properties and geometry has enabled engineers to design structures in which functionality is derived from controlling electron behavior. As manufacturing techniques have greatly expanded the list of available materials and the range of attainable length scales, similar opportunities now exist for designing devices whose functionality is derived from controlling phonon behavior. However, progress in this area is hampered by gaps in our knowledge of phonon transport across and along arbitrary interfaces, the scattering of phonons with crystal defects, interface roughness and mass-mixing, delocalized electrons/collective electronic excitations, and solid acoustic vibrations when these occur in structures with small physical dimensions. This book provides a comprehensive description of phonons and their interactions in systems with different dimensions and length scales. Theories and measurements of phonon interactions are described in relation to the design of materials with exotic properties such as metamaterials, nano-mechanical systems, next-generation electronic, photonic, and acoustic devices, energy harvesting, optical information storage, and applications of phonon lasers in a variety of fields.

Phonon Thermal Transport in Silicon-Based Nanomaterials

Author : Hai-Peng Li
Publisher : Springer
ISBN 13 : 9811326371
Total Pages : 94 pages
Book Rating : 4.8/5 (113 download)

DOWNLOAD NOW!

Book Synopsis Phonon Thermal Transport in Silicon-Based Nanomaterials by : Hai-Peng Li

Download or read book Phonon Thermal Transport in Silicon-Based Nanomaterials written by Hai-Peng Li and published by Springer. This book was released on 2018-09-08 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this Brief, authors introduce the advance in theoretical and experimental techniques for determining the thermal conductivity in nanomaterials, and focus on review of their recent theoretical studies on the thermal properties of silicon–based nanomaterials, such as zero–dimensional silicon nanoclusters, one–dimensional silicon nanowires, and graphenelike two–dimensional silicene. The specific subject matters covered include: size effect of thermal stability and phonon thermal transport in spherical silicon nanoclusters, surface effects of phonon thermal transport in silicon nanowires, and defects effects of phonon thermal transport in silicene. The results obtained are supplemented by numerical calculations, presented as tables and figures. The potential applications of these findings in nanoelectrics and thermoelectric energy conversion are also discussed. In this regard, this Brief represents an authoritative, systematic, and detailed description of the current status of phonon thermal transport in silicon–based nanomaterials. This Brief should be a highly valuable reference for young scientists and postgraduate students active in the fields of nanoscale thermal transport and silicon-based nanomaterials.

Coherent Acoustic Phonons in Nanostructures Investigated by Asynchronous Optical Sampling

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (315 download)

DOWNLOAD NOW!

Book Synopsis Coherent Acoustic Phonons in Nanostructures Investigated by Asynchronous Optical Sampling by :

Download or read book Coherent Acoustic Phonons in Nanostructures Investigated by Asynchronous Optical Sampling written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Phonon Engineering Theory of Crystalline Layered Nanostructures

Author : Etraj I
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659807756
Total Pages : 56 pages
Book Rating : 4.8/5 (77 download)

DOWNLOAD NOW!

Book Synopsis Phonon Engineering Theory of Crystalline Layered Nanostructures by : Etraj I

Download or read book Phonon Engineering Theory of Crystalline Layered Nanostructures written by Etraj I and published by LAP Lambert Academic Publishing. This book was released on 2015-11-19 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Application of nano-structures requires knowledge of their fundamental physical (mechanical, electro-magnetic, optical, etc.) characteristics. Thermodynamic properties associated with phonon displacements through the nano-samples are particularly interesting. Independent of the type of lattices, the thermodynamics of their subsystems (electrons, excitons, spin waves, etc.) is determined when the subsystem is in thermodynamic equilibrium with phonons. Besides, the acoustical characteristics as well as conductive and superconductive properties etc. could not be realistically explained without phonons. The fact which must be especially pointed out is that the role of phonons in nanostructures is much more impressive than in bulk structures. The main fact concerning phonon properties in nanostructures is the absence of the so-called acoustic phonons: for the exciting of phonons in nanostructures activation energy different from zero is necessary. These unexpected characteristics require revision of all conclusions obtained by bulk theories of phonons. Therefore, the contribution of phonon subsystems to thermodynamic is the first step in a research of nanostructure properties.

Modeling Phonons in Semiconductor Nanostructures

Author :
Publisher :
ISBN 13 :
Total Pages : 121 pages
Book Rating : 4.:/5 (917 download)

DOWNLOAD NOW!

Book Synopsis Modeling Phonons in Semiconductor Nanostructures by :

Download or read book Modeling Phonons in Semiconductor Nanostructures written by and published by . This book was released on 2007 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Phonons and Phonon-related Effects in Prospective Nanoscale Semiconductor Devices

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (656 download)

DOWNLOAD NOW!

Book Synopsis Phonons and Phonon-related Effects in Prospective Nanoscale Semiconductor Devices by :

Download or read book Phonons and Phonon-related Effects in Prospective Nanoscale Semiconductor Devices written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The research was devoted to the theoretical investigation of lattice vibrations in low-dimensional heterostructures and bulk materials with strong polaronic coupling. The purpose of the research has been to develop the phonon theory for technologically-important materials such as nitrides of Ga and Al as well as to locate new phonon-related effects which can be utilized in artificially-created heterostructures. The electron-phonon interaction has been considered quantum mechanically. The main findings can be summarized briefly as follows: 1. Consideration of carrier-induced renormalization of acoustic phonon spectra in quantum wires revealed the possibility for the Peierls phase transition into a state with periodic lattice distortion and charge-density waves of macroscopic period in artificially-prepared structures. The phase diagram for this transition has been determined. An analytical dispersion relation for the coupled electron-phonon excitation has been derived. 2. It is found that the drift of two-dimensional electrons in quantum wells can lead to efficient amplification (generation) of sub-THz coherent confined acoustic vibrations due to the Cerenkov effect when the velocity of the drifted electrons exceeds the sound velocity in the given medium. A theory has been developed to describe the confinement of acoustic modes propagating along the high-symmetry directions in cubic quantum wells. 3. A theory of confinement of optical phonon modes in wurtzite quantum wells has been developed. A formalism has been derived for calculation of electron scattering rates in optically anisotropic (uniaxial) crystals and quantum wells. 4. From the comparison of the energy losses to the lattice as function of the carrier velocity obtained in frameworks of perturbative model and path-integral Thornber-Feynman approach it is found that perturbation theory can be applied for materials with intermediate polaronic coupling such a GaN and AlN. Moreover, the theoretical possibility of.

Carrier Transport In Nanostructures

Author : Obafemi Oluwaseun Otelaja
Publisher :
ISBN 13 :
Total Pages : 250 pages
Book Rating : 4.:/5 (954 download)

DOWNLOAD NOW!

Book Synopsis Carrier Transport In Nanostructures by : Obafemi Oluwaseun Otelaja

Download or read book Carrier Transport In Nanostructures written by Obafemi Oluwaseun Otelaja and published by . This book was released on 2016 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectrally resolved phonon transport is important for understanding nanoscale heat flow, which have implications for the realization of efficient thermoelectric and microelectronic cooling devices, for the realization of efficient cryogenic particle detectors, and for the realization of robust implementations of quantum computers. This thesis describes the development and utilization of a microscale phonon spectrometer. Aluminum superconducting tunnel junctions (STJ) are utilized for the emission and detection of non-thermal phonons with frequencies ranging from ~100 to ~870 GHz in silicon nanostructures. The energy resolution of the spectrometer is ~6080 [mu]eV, corresponding to a frequency resolution of ~15-20 GHz, which is about 20 times better than the energy resolution of conventional thermal transport measurements that rely on a Planck distribution of phonons. The spectrometer is utilized to probe surface scattering and phonon backscattering in silicon. To probe surface scattering, silicon nanosheets were fabricated, their surface roughness (~1 nm) was determined using atomic-force microscopy, and their phonon scattering rates were measured. Our results indicate that the well-known Ziman theory, which takes into account the roughness of the surface, underestimates the probability for totally diffusive scattering in nanostructures. To probe phonon backscattering, phonon 'enhancers' (~90 [mu]m deep) were etched around the STJ detectors, and the measured backscattered phonon signal increases with the number of enhancers. Using a geometric analysis of the phonon pathways, we show that the mechanism of the backscattered phonon enhancement is due to confinement of the ballistic phonon. These results have implications for ballistic phonon transport, phonon-mediated detection, and thermal transport studies, and highlight the important effects of phonon scattering from surfaces and interfaces in nanoscale geometrical designs. Finally, a facile room-temperature method, comprising ammonium sulfide treatment and electrophoretic deposition, was developed for assembling colloidal copper sulfide (Cu2-xS) nanoparticles into highly electrically conducting films. Electronic properties of the treated films are characterized with a combination of Hall Effect measurements, field-effect transistor measurements, temperature-dependent conductivity measurements, and capacitance-voltage measurements, revealing their highly-doped p-type semiconducting nature. In addition to being important for solutionprocessed electronics, the periodicity introduced by nanoparticles and their arrays presents a model system for probing phonon transport in complex interfaces.