Download or read book Topics in the Dynamics of Charge density waves written by Sathyanarayan Ramakrishna and published by . This book was released on 1993 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Charge Density Waves in Solids written by L.P. Gor'kov and published by Elsevier. This book was released on 2012-12-02 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest addition to this series covers a field which is commonly referred to as charge density wave dynamics. The most thoroughly investigated materials are inorganic linear chain compounds with highly anisotropic electronic properties. The volume opens with an examination of their structural properties and the essential features which allow charge density waves to develop. The behaviour of the charge density waves, where interesting phenomena are observed, is treated both from a theoretical and an experimental standpoint. The role of impurities in statics and dynamics is considered and an examination of the possible role of solitons in incommensurate charge density wave systems is given. A number of ways to describe charge density waves theoretically, using computer simulations as well as microscopical models, are presented by a truely international board of authors.

Download or read book The Structure and Dynamics of Charge density Waves Near the Depinning Transition written by Yanping Li and published by . This book was released on 2001 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Charge Density Waves in Solids written by Gyula Hutiray and published by Springer. This book was released on 1985 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Time Resolved Dynamics of Charge Density Waves in Solids written by Emre Ergeçen and published by . This book was released on 2019 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Charge density wave (CDW) is a periodic charge modulation in a metal, induced by electron-phonon or electron-electron interaction, which breaks the translational symmetry of the underlying electron gas. The charge density wave order is ubiquitous among condensed matter systems, and its equilibrium properties have been well characterized by static probes, such as X-ray scattering. However, little is known about their nonequilibrium properties following photoexcitation. In this thesis, we use time resolved optical measurements to characterize the nonequilibrium dynamics of charge density wave systems. In the time resolved optical experiments in this work, an ultrashort (

Download or read book Low Frequency Charge density Wave Dynamics written by Arley Cleveland Marley and published by . This book was released on 1995 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The low frequency dynamics of the charge-density waves in NbSe$sb3$ and TaS$sb3$ were investigated using low frequency conductance fluctuations. Simultaneous measurements of the fluctuations in the voltage and the differential resistance revealed a theory of threshold voltage fluctuations can only partially describe some of the fluctuations in the I-V curve. Noise measurements performed with an ac drive current characterized the fluctuations and showed that other parameters, in addition to the threshold, must be fluctuating to fully account for the fluctuations. In mesoscopic samples, the observation of discrete switching in the voltage allowed estimates of the dynamical coherence length ranging from $rm{approx}100mu m$ up to the entire sample length of $rm{approx}1000mu m.$ Experiments to determine if the low frequency dynamics are equilibrium or nonequilibrium processes showed that the dynamics involve a combination of equilibrium and nonequilibrium dynamics. The equilibrium dynamics can be described by a rough free energy landscape with extreme sensitivity of the local details of the landscape to changes in the temperature or current. The nonequilibrium dynamics were directly related to the drive current.

Download or read book Emergent States in Photoinduced Charge Density Wave Transitions written by Alfred Zong and published by Springer Nature. This book was released on 2021-09-17 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book advances understanding of light-induced phase transitions and nonequilibrium orders that occur in a broken-symmetry system. Upon excitation with an intense laser pulse, materials can undergo a nonthermal transition through pathways different from those in equilibrium. The mechanism underlying these photoinduced phase transitions has long been researched, but many details in this ultrafast, non-adiabatic regime still remain to be clarified. The work in this book reveals new insights into this phenomena via investigation of photoinduced melting and recovery of charge density waves (CDWs). Using several time-resolved diffraction and spectroscopic techniques, the author shows that the light-induced melting of a CDW is characterized by dynamical slowing-down, while the restoration of the symmetry-breaking order features two distinct timescales: A fast recovery of the CDW amplitude is followed by a slower re-establishment of phase coherence, the latter of which is dictated by the presence of topological defects in the CDW. Furthermore, after the suppression of the original CDW by photoexcitation, a different, competing CDW transiently emerges, illustrating how a hidden order in equilibrium can be unleashed by a laser pulse. These insights into CDW systems may be carried over to other broken-symmetry states, such as superconductivity and magnetic ordering, bringing us one step closer towards manipulating phases of matter using a laser pulse.

Download or read book Sliding Charge Density Waves written by Christopher R. Myers and published by . This book was released on 1991 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Density Waves In Solids written by George Gruner and published by CRC Press. This book was released on 2018-03-08 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: ?Density Waves in Solids is written for graduate students and scientists interested in solid-state sciences. It discusses the theoretical and experimental state of affairs of two novel types of broken symmetry ground states of metals, charge, and spin density waves. These states arise as the consequence of electron-phonon and electron-electron interactions in low-dimensional metals.Some fundamental aspects of the one-dimensional electron gas, and of the materials with anisotropic properties, are discussed first. This is followed by the mean field theory of the phases transitions?discussed using second quantized formalism?together with the various experimental observations on the transition and on the ground states. Fluctuation effects and the collective excitations are reviewed next, using the Ginzburg-Landau formalism, followed by the review of the interaction of these states with the underlying lattice and with impurities. The final chapters are devoted to the response of the ground states to external perturbations.

Download or read book Current Topics In Condensed Matter And Particle Physics Non perturbative Phenomena And Strongly Correlated Systems written by Shan-tao Liao and published by World Scientific. This book was released on 1993-03-05 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated edition of the book blends in new e-commerce technologies. Mobile commerce (M-commerce) and use of cloud computing are offering a new set of challenges and opportunities for those individuals who know what they are and how they are related to e-commerce. Their use opens up new markets, expanding the need for larger operations, which in turn requires greater knowledge of the operations management subjects presented in this book.The book is focused on issues, concepts, philosophies, procedures, methodologies, and practices of running e-commerce operations. It connects the basic operations management activities undertaken by every organization (e.g., inventory management, scheduling, etc.) and translates their application into issues and problems faced in the field of e-commerce.The book also provides current research findings, strategies, and practices that can help students in the field of operations management run and improve their e-commerce operations. It covers most of the basic operations management activities and functions and has been designed for an upper-level undergraduate business, a graduate business or engineering management course on e-commerce operations management for university students. Students interested in e-commerce operations will find this book a valuable guide to the important aspects of starting up and running an e-commerce operation. They can learn from reading this book how supply chains, products and processes, human resources and purchasing functions can supported and enhanced by the use of e-commerce. In addition, students can learn how to undertake forecasting and scheduling in e-commerce operations. Decision-makers and managers who have to reengineer e-commerce operations can also use this book as a guide to understanding e-commerce.The Instructor Manual and PowerPoint Slides for the book are available upon request for all instructors who adopt this book as a course text. Please send your request to .

Download or read book Dynamics of the Charge Density Wave written by Hidetoshi Fukuyama and published by . This book was released on 1977 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physics of Cooperative Phenomena in Condensed Matter Systems written by Masahiko Inui and published by . This book was released on 1988 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Charge density Waves and Collective Dynamics in the Transition metal Dichalcogenides written by Andreas König and published by . This book was released on 2013 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Theory of Sliding Charge Density Waves and Related Problems written by L. Sneddon and published by . This book was released on 1984 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dc dynamics of models of incommensurate charge density wave (CDW) conductivity was reduced to a purely static problem. The dc characteristics of the incommensurate chain have been determined. A microscopic understanding of differences in nonlinear electrical properties of different CDW materials has been obtained. The experimentally observed scaling of field- and frequency-dependent conductivities was shown to occur in classical systems and can therefore no longer be regarded as evidence of quantum tunneling. The dynamic threshold of incommensurate charge density wave conductivity was seen to be described by a new characteristic function, in which singularities emerge as the velocity approaches zero. The dynamics of the incommensurate chain with long range interactions has been solved exactly, using both analytic and graphical techniques. This complete solution provides direct insight into nonlinear sliding conductivity. (Author).

Download or read book Nonlinear Dynamics of Charge Density Wave Transport in Quasi one dimensional Conductors written by Dennis Michael Duggan and published by . This book was released on 1986 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamics of the Charge Density Wave written by Hidetoshi Fukuyama and published by . This book was released on 1977 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Equilibrium and Non equilibrium Dynamics of Charge density Waves in Chromium written by and published by . This book was released on 2013 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Below I present two related studies on the dynamics of spin-/charge-density-waves (SDW/CDW) in chromium. In the first study we measured equilibrium fluctuations of antiferromagnetic SDW/CDW domains in a bulk sample by correlating speckle patterns obtained with partially coherent synchrotron x-rays. The autocorrelation functions follow a double compressing exponential decay similar to that observed in other `jammed' condensed matter systems. This hyper-diffusive behavior indicates the existence of collective relaxation modes which we interpret to arise from the coherent rotation of weakly coupled blocks of spins. Time scales for this collective process range from tens of seconds at 150 Kelvin to thousands of seconds at low temperatures. Even near absolute zero, we observed fluctuations of the magnetic structure which can most directly be interpreted as arising from quantum mechanical zero-point motion. Because microscopic domains of energetically similar spin/charge ordered states are quantum mechanically linked, there exists a dynamic competition between alternate ground states that provides insight into the free energy landscape of domain wall configurations. We obtain estimates of the effective soliton mass of a domain wall and the Arrhenius activation energy.