Low-temperature excitations in disordered systems PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Low-temperature excitations in disordered systems PDF full book. Access full book title Low-temperature excitations in disordered systems by Joachim Canisius. Download full books in PDF and EPUB format.
Author: Joachim Canisius
Publisher:
ISBN:
Category :
Languages : de
Pages : 188
Get Book Here
Book Description
Author: Joachim Canisius
Publisher:
ISBN:
Category :
Languages : de
Pages : 188
Get Book Here
Book Description
Author: Richard B Stephens
Publisher: World Scientific
ISBN: 9811217262
Category : Science
Languages : en
Pages : 418
Get Book Here
Book Description
The subject of low-energy excitations has evolved since two-level-tunneling systems were first proposed ~50 years ago. Initially they were used to explain the common anomalous properties of oxide glasses and polymers; now the subject includes a wide range of other materials containing disorder: amorphous semiconductors and metals, doped- mixed- and quasi-crystals, surface adsorbates, ... and topics such as dephasing of quantum states and interferometer noise. A fairly simple empirical description using a remarkably small range of parameters serves well to describe the effect of these excitations, but the structures causing these effects are known in only a few materials and the reasons for their similarity across disparate materials has only been qualitatively addressed.This book provides a unified, comprehensive description of tunneling systems in disordered solids suitable for graduate students/researchers wishing an introduction to the field. Its focus is on the tunneling systems intrinsic to glassy solids. It describes the experimental observations of 'glassy' properties, develops the basic empirical tunneling model, and discusses the dynamics changes on cooling to temperatures where direct excitation interactions become important and on heating to where tunneling gives way to thermal activation. Finally, it discusses how theories of glass formation can help us understand the ubiquity of these excitations.The Development of the basic tunneling model is the core of the book and is worked out in considerable detail. To keep the total within bounds of our expertise and the readers' patience, many related experimental and theoretical developments are only sketched out here; the text is heavily cited to allow readers to follow their specific interests in much more depth.
Author: Miguel A Ramos
Publisher: World Scientific
ISBN: 1800612591
Category : Science
Languages : en
Pages : 505
Get Book Here
Book Description
This book, edited by M. A. Ramos and contributed by several reputed physicists in the field, presents a timely review on low-temperature thermal and vibrational properties of glasses, and of disordered solids in general. In 1971, the seminal work of Zeller and Pohl was published, which triggered this relevant research field in condensed matter physics. Hence, this book also commemorates about 50 years of that highlight with a comprehensive, updated review.In brief, glasses (firstly genuine amorphous solids but later on followed by different disordered crystals) were found to universally exhibit low-temperature properties (specific heat, thermal conductivity, acoustic and dielectric attenuation, etc.) unexpectedly very similar among them — and very different from those of their crystalline counterparts.These universal 'anomalies' of glasses and other disordered solids remain very controversial topics in condensed matter physics. They have been addressed exhaustively in this book, through many updated experimental data, a survey of most relevant models and theories, as well as by computational simulations.
Author: Michael I. Klinger
Publisher: World Scientific
ISBN: 9814407488
Category : Science
Languages : en
Pages : 339
Get Book Here
Book Description
The present book describes the fundamental features of glassy disordered systems at high temperatures (close to the liquid-to-glass transition) and for the first time in a book, the universal anomalous properties of glasses at low energies (i.e. temperatures/frequencies lower than the Debye values) are depicted. Several important theoretical models for both the glass formation and the universal anomalous properties of glasses are described and analyzed. The origin and main features of soft atomic-motion modes and their excitations, as well as their role in the anomalous properties, are considered in detail. It is shown particularly that the soft-mode model gives rise to a consistent description of the anomalous properties. Additional manifestations of the soft modes in glassy phenomena are described. Other models of the anomalous glassy properties can be considered as limit cases of the soft-mode model for either very low or moderately low temperatures/frequencies.
Author: A.L. Efros
Publisher: Elsevier
ISBN: 044460099X
Category : Science
Languages : en
Pages : 703
Get Book Here
Book Description
``Electron-Electron Interactions in Disordered Systems'' deals with the interplay of disorder and the Coulomb interaction. Prominent experts give state-of-the-art reviews of the theoretical and experimental work in this field and make it clear that the interplay of the two effects is essential, especially in low-dimensional systems.
Author: Milko Borisov
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 952
Get Book Here
Book Description
Author: Debashish Chowdhury
Publisher: World Scientific
ISBN: 9789971500290
Category : Science
Languages : en
Pages : 408
Get Book Here
Book Description
The long list of ?spin glass materials? and the summary of the experimental results provided in this book emphasize the common features of spin glasses despite the diversities. The critical review of more than a thousand papers not only identifies the complexities involved in the theoretical understanding of the static and dynamic properties of real spin glasses but also explains the physical concepts and mathematical formalism which have been used so successfully in solving the infinite range model. Morever, a beginner will find practical applications of the concepts of broken ergodicity, ultrametricity, gauge invariance, etc. in this book. Major progress has been made in solving many other challenging problems, e.g., computer design, associative memory, pattern recognition and neural networks, evolution of biological species etc. by mapping them onto the spin glass models. The chapter on these spin- glass-like systems will be useful not only to physicists but also to computer scientists and biologists.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 836
Get Book Here
Book Description
Author: Ilya Prigogine
Publisher: John Wiley & Sons
ISBN: 0470141859
Category : Science
Languages : en
Pages : 602
Get Book Here
Book Description
The Advances in Chemical Physics series provides the chemical physics and physical chemistry fields with a forum for critical, authoritative evaluations of advances in every area of the discipline. Filled with cutting-edge research reported in a cohesive manner not found elsewhere in the literature, each volume of the Advances in Chemical Physics series serves as the perfect supplement to any advanced graduate class devoted to the study of chemical physics.
Author: Ludovic Berthier
Publisher: Oxford University Press
ISBN: 0199691479
Category : Science
Languages : en
Pages : 465
Get Book Here
Book Description
Most everyday solid materials, from plastics to cosmetic gels, exist in a non-crystalline, amorphous form: they are glasses. Yet we are still seeking an explanation as to what glasses really are and to why they form. In this book, leading experts present broad and original perspectives on one of the deepest mysteries of condensed matter physics.
