Nonequilibrium Phonon Dynamics
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Nonequilibrium Phonon Dynamics
Author | : Walter E. Bron |
Publsiher | : Springer Science & Business Media |
Total Pages | : 682 |
Release | : 2013-11-11 |
Genre | : Science |
ISBN | : 9781461325017 |
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Phonons are always present in the solid state even at an absolute temperature of 0 K where zero point vibrations still abound. Moreover, phonons interact with all other excitations of the solid state and, thereby, influence most of its properties. Historically experimental information on phonon transport came from measurements of thermal conductivity. Over the past two decades much more, and much more detailed, information on phonon transport and on many of the inherent phonon interaction processes have come to light from experiments which use nonequilibrium phonons to study their dynamics. The resultant research field has most recently blossomed with the development of ever more sophisticated experimental and theoretical methods which can be applied to it. In fact, the field is moving so rapidly that new members of the research community have difficulties in keeping up to date. This NATO Advanced Study Institute (ASI) was organized with the objective of overcoming the information barrier between those expert in the field and those who are new to it. Thus it was decided to (i) organize a set of tutorially based lectures covering most of the important facets in the field, and (ii) to produce an Institute proceedings which would serve both as the first general textbook, as well as a valuable reference book, for this field of knowledge.
Nonequilibrium Phonon Dynamics
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Author | : Walter E. Bron |
Publsiher | : Unknown |
Total Pages | : 679 |
Release | : 2024 |
Genre | : Lattice dynamics |
ISBN | : OCLC:1241691039 |
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Nonequilibrium Phonons in Nonmetallic Crystals
Author | : Wolfgang Eisenmenger,A. A. Kapli︠a︡nskiĭ |
Publsiher | : North Holland |
Total Pages | : 788 |
Release | : 1986 |
Genre | : Science |
ISBN | : UVA:X001403296 |
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Spectroscopy of Nonequilibrium Electrons and Phonons
Author | : C.V. Shank,B.P. Zakharchenya |
Publsiher | : Elsevier |
Total Pages | : 513 |
Release | : 2012-12-02 |
Genre | : Science |
ISBN | : 9780444600578 |
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The physics of nonequilibrium electrons and phonons in semiconductors is an important branch of fundamental physics that has many practical applications, especially in the development of ultrafast and ultrasmall semiconductor devices. This volume is devoted to different trends in the field which are presently at the forefront of research. Special attention is paid to the ultrafast relaxation processes in bulk semiconductors and two-dimensional semiconductor structures, and to their study by different spectroscopic methods, both pulsed and steady-state. The evolution of energy and space distribution of nonequilibrium electrons and the relaxation kinetics of hot carriers and phonons are considered under various conditions such as temperature, doping and pumping intensity by leading experts in the field.
Nonequilibrium Dynamics of Collective Excitations in Quantum Materials
Author | : Edoardo Baldini |
Publsiher | : Springer |
Total Pages | : 316 |
Release | : 2018-03-28 |
Genre | : Technology & Engineering |
ISBN | : 9783319774985 |
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This book studies the dynamics of fundamental collective excitations in quantum materials, focusing on the use of state-of-the-art ultrafast broadband optical spectroscopy. Collective behaviour in solids lies at the origin of several cooperative phenomena that can lead to profound transformations, instabilities and phase transitions. Revealing the dynamics of collective excitations is a topic of pivotal importance in contemporary condensed matter physics, as it provides information on the strength and spatial distribution of interactions and correlation. The experimental framework explored in this book relies on setting a material out-of-equilibrium by an ultrashort laser pulse and monitoring the photo-induced changes in its optical properties over a broad spectral region in the visible or deep-ultraviolet. Collective excitations (e.g. plasmons, excitons, phonons...) emerge either in the frequency domain as spectral features across the probed range, or in the time domain as coherent modes triggered by the pump pulse. Mapping the temporal evolution of these collective excitations provides access to the hierarchy of low-energy phenomena occurring in the solid during its path towards thermodynamic equilibrium. This methodology is used to investigate a number of strongly interacting and correlated materials with an increasing degree of internal complexity beyond conventional band theory.
Non Equilibrium Dynamics of Semiconductors and Nanostructures
Author | : Kong-Thon Tsen |
Publsiher | : CRC Press |
Total Pages | : 272 |
Release | : 2018-10-03 |
Genre | : Technology & Engineering |
ISBN | : 9781420027259 |
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The advent of the femto-second laser has enabled us to observe phenomena at the atomic timescale. One area to reap enormous benefits from this ability is ultrafast dynamics. Collecting the works of leading experts from around the globe, Non-Equilibrium Dynamics of Semiconductors and Nanostructures surveys recent developments in a variety of areas in ultrafast dynamics. In eight authoritative chapters illustrated by more than 150 figures, this book spans a broad range of new techniques and advances. It begins with a review of spin dynamics in a high-mobility two-dimensional electron gas, followed by the generation, propagation, and nonlinear properties of high-amplitude, ultrashort strain solitons in solids. The discussion then turns to nonlinear optical properties of nanoscale artificial dielectrics, optical properties of GaN self-assembled quantum dots, and optical studies of carrier dynamics and non-equilibrium optical phonons in nitride-based semiconductors. Rounding out the presentation, the book examines ultrafast non-equilibrium electron dynamics in metal nanoparticles, monochromatic acoustic phonons in GaAs, and electromagnetically induced transparency in semiconductor quantum wells. With its pedagogical approach and practical, up-to-date coverage, Non-Equilibrium Dynamics of Semiconductors and Nanostructures allows you to easily put the material into practice, whether you are a seasoned researcher or new to the field.
Nonequilibrium Electrons and Phonons in Superconductors
Author | : Armen M. Gulian,Gely F. Zharkov |
Publsiher | : Springer Science & Business Media |
Total Pages | : 393 |
Release | : 2006-04-11 |
Genre | : Science |
ISBN | : 9780306470875 |
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This book introduces the main concepts of nonequilibrium phenomena in superconductors. The authors cover both experimentally well-understood topics and problems which physicists could challenge more in view of current theoretical understanding. Some of these topics include thermoelectric phenomena, influence of laser radiation as well as fluctuations in superconductors.
Nonequilibrium Superconductivity Phonons and Kapitza Boundaries
Author | : Kenneth E. Gray |
Publsiher | : Springer Science & Business Media |
Total Pages | : 702 |
Release | : 2012-12-06 |
Genre | : Technology & Engineering |
ISBN | : 9781468439359 |
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The importance of phonons has long been recognized by research ers in nonequilibrium superconductivity. Similarly, experimentalists studying phonons at low temperatures have relied heavily on supercon ductors as sources and detectors. To a large extent this symbiotic relationship has developed with a general mutual awareness; however, to our knowledge these subjects have never been treated together in conferences or study institutes. It was with the hope of further contributing to the awareness and communication between workers in these areas that this NATO Advanced Study Institute (ASI) has been conceived. A second, but equally important, reason for holding this ASI is to fill a void by providing the first general textbook in this important area of physics. Therefore, there was an emphasis on the tutorial nature of the lectures and written contributions to this textbook. It should not go unnoticed that the experimental and theoretical concepts covered in this textbook are of paramount importance to the various applications of superconductors. Almost by definition, the use of a superconductor implies a nonequilibrium state! For example, phonon conduction to the helium bath is important in devices ranging from microscopic Josephson junctions to large scale magnets and transmission lines. Knowledge of the more fundamental nonequilibrium effects can aid in our understanding of devices as well as provide the potential for entirely new applications.