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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
We have systematically studied a variety of vanadium dioxide (VO2) crystalline forms, including bulk single crystals and oriented thin films, using infrared (IR) near-field spectroscopic imaging techniques. By measuring the IR spectroscopic responses of electrons and phonons in VO2 with sub-grain-size spatial resolution (~20nm), we show that epitaxial strain in VO2 thin films not only triggers spontaneous local phase separations, but leads to intermediate electronic and lattice states that are intrinsically different from those found in bulk. Generalized rules of strain- and symmetry-dependent mesoscopic phase inhomogeneity are also discussed. Furthermore, these results set the stage for a comprehensive understanding of complex energy landscapes that may not be readily determined by macroscopic approaches.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
We have systematically studied a variety of vanadium dioxide (VO2) crystalline forms, including bulk single crystals and oriented thin films, using infrared (IR) near-field spectroscopic imaging techniques. By measuring the IR spectroscopic responses of electrons and phonons in VO2 with sub-grain-size spatial resolution (~20nm), we show that epitaxial strain in VO2 thin films not only triggers spontaneous local phase separations, but leads to intermediate electronic and lattice states that are intrinsically different from those found in bulk. Generalized rules of strain- and symmetry-dependent mesoscopic phase inhomogeneity are also discussed. Furthermore, these results set the stage for a comprehensive understanding of complex energy landscapes that may not be readily determined by macroscopic approaches.
Author: Michael A. Stroscio Publisher: Cambridge University Press ISBN: 1139430327 Category : Science Languages : en Pages : 290
Book Description
This book focuses on the theory of phonon interactions in nanoscale structures with particular emphasis on modern electronic and optoelectronic devices. The continuing progress in the fabrication of semiconductor nanostructures with lower dimensional features has led to devices with enhanced functionality and even novel devices with new operating principles. The critical role of phonon effects in such semiconductor devices is well known. There is therefore a great need for a greater awareness and understanding of confined phonon effects. A key goal of this book 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. A basic understanding of electromagnetism and classical acoustics is assumed.
Author: A.S. Nowick Publisher: Elsevier ISBN: 0323143318 Category : Science Languages : en Pages : 695
Book Description
Anelastic Relaxation in Crystalline Solids provides an overview of anelasticity in crystals. This book discusses the various physical and chemical phenomena in crystalline solids. Comprised of 20 chapters, this volume begins with a discussion on the formal theory of anelasticity, and then explores the anelastic behavior, which is a manifestation of internal relaxation process. This text lays the groundwork for the formal theory by introducing the postulates. Other chapters explore the different dynamical methods that are frequently used in studying anelasticity. The reader is then introduced to the physical origin of anelastic relaxation process in terms of atomic model. This text also discusses the various types of point defects in crystals, including elementary point defects, composite defects, and self-interstitial defects. The final chapter provides relevant information on the various frequency ranges used in the study. This book is intended for crystallographers, mechanical engineers, metallurgical engineers, solid-state physicists, materials scientists, and researchers.
Author: Wengang (Wayne) Bi Publisher: CRC Press ISBN: 1351648055 Category : Science Languages : en Pages : 775
Book Description
This book addresses material growth, device fabrication, device application, and commercialization of energy-efficient white light-emitting diodes (LEDs), laser diodes, and power electronics devices. It begins with an overview on basics of semiconductor materials, physics, growth and characterization techniques, followed by detailed discussion of advantages, drawbacks, design issues, processing, applications, and key challenges for state of the art GaN-based devices. It includes state of the art material synthesis techniques with an overview on growth technologies for emerging bulk or free standing GaN and AlN substrates and their applications in electronics, detection, sensing, optoelectronics and photonics. Wengang (Wayne) Bi is Distinguished Chair Professor and Associate Dean in the College of Information and Electrical Engineering at Hebei University of Technology in Tianjin, China. Hao-chung (Henry) Kuo is Distinguished Professor and Associate Director of the Photonics Center at National Chiao-Tung University, Hsin-Tsu, Taiwan, China. Pei-Cheng Ku is an associate professor in the Department of Electrical Engineering & Computer Science at the University of Michigan, Ann Arbor, USA. Bo Shen is the Cheung Kong Professor at Peking University in China.
Author: T.A. Kaplan Publisher: Springer Science & Business Media ISBN: 0306461323 Category : Science Languages : en Pages : 299
Book Description
This series of books, which is published at the rate of about one per year, addresses fundamental problems in materials science. The contents cover a broad range of topics from small clusters of atoms to engineering materials and involves chemistry, physics, materials science and engineering, with length scales ranging from Ångstroms up to millimeters. The emphasis is on basic science rather than on applications. Each book focuses on a single area of current interest and brings together leading experts to give an up to date discussion of their work and the work of others. Each article contains enough references that the interested reader can access the relevant literature. Thanks are given to the Center for Fundamental Materials Research at Michigan State University for supporting this series. M. F. Thorpe, Series Editor E mail: thorpe@pa. msu. edu V PREFACE This book records invited lectures given at the workshop on Physics of Manganites, held at Michigan State University, July 26 29, 1998. Doped manganites are an interesting class of compounds that show both metal insulator and ferromagnetic to paramagnetic transitions at the same temperature. This was discovered in the early 1950s by Jonker and van Santen and basic theoretical ideas were developed by Zener (1951), Anderson and Hasegawa (1955), and deGennes (1960) to explain these transitions and related interesting observations.
Author: Bruno Dagens Publisher: Motilal Banarsidass ISBN: 8120812263 Category : Architecture Languages : en Pages : 1086
Book Description
Motilal Banarsidass, Delhi motilalbanarsidass.com, [email protected] The Matamata is a Vastusastra, i.e. a treatise on dwelling, and as such, it deals with all the facets of gods' and men's dwellings, from the choice of the site to the iconography of the temple walls. It contains numerous and precise descriptions of villages and towns as well as of temples, houses, mansions and palaces. It gives indications for the selection of proper orientation, correct dimensions, and appropriate materials. It intends to be a manual for the architect and a guidebook for the layman. Well thought of by traditional architects (sthapati-s) of South India, the treatise is of great interest at a time when technical traditions, in all fields, are being scrutinized for their possible modern application. The present bilingual edition prepared by Dr Bruno Dagens contains critically edited Sanskrit text which is an improvement over the earlier edition by the same scholar and published as No.40 of Publications de L'Institut Francaisd' Indologie, Pondicherry. The English translation, also published earlier, has now been revised with copious notes. The usefulness of the edition has been further enhanced by adding an analytical table of contents and a comprehensive glossary. In the series of Kalamulasastra early texts on music, namely, Matralaksanam, Dattilam and Brhaddest, have been published. The medieval texts on music, especially, the Sribastamuktavali (No.3 in the series) and the Nartananirnaya (No.17 in the series), bring us up to the 15th and 16th centuries. In the case of architecture, despite the IGNCA's endeavour to publish portions of the Brhatsamhita, the Agni Purana and the Visnudharmottara-Purana, first, this has not been possible. Instead, our scholars were able to complete work first on a late but important text, namely, Silparatnakosa. We hope that the sections on architecture in the Brhatsamhita, the Agni Purana and the Visnudharmottara-Purana which predate the medieval texts, will be published soon, along with revised and re-edited texts of Manasollasa and Aparajitaprccha. The Mayamatam is the fourteenth and fifteenth volume in the Kalamulasastra series of the Indira Gandhi National Centre for the Arts (IGNCA).
Author: Tapan Chatterji Publisher: Springer Science & Business Media ISBN: 9781402018442 Category : Science Languages : en Pages : 468
Book Description
This book is a comprehensive account of the present understanding of an important class of perovskite oxide materials with potential industrial applications. The chapters are written by well-known scientists who are on the forefront of the field and have directly contributed to its recent progress. Special care has been taken to maintain a balance between the space devoted to new experimental results and that devoted to recent theoretical developments. The book contains recent experimental and theoretical results on colossal magnetoresistive (CMR) manganites not covered by any other book in the field, and hence this will be very beneficial to graduate students and researchers in condensed matter and applied physics, materials science and solid state chemistry.
Author: David K. Ferry Publisher: Springer Science & Business Media ISBN: 1468436384 Category : Technology & Engineering Languages : en Pages : 620
Book Description
The area of high field transport in semiconductors has been of interest since the early studies of dielectric breakdown in various materials. It really emerged as a sub-discipline of semiconductor physics in the early 1960's, following the discovery of substantial deviations from Ohm's law at high electric fields. Since that time, it has become a major area of importance in solid state electronics as semiconductor devices have operated at higher frequencies and higher powers. It has become apparent since the Modena Conference on Hot Electrons in 1973, that the area of hot electrons has ex tended weIl beyond the concept of semi-classical electrons (or holes) in homogeneous semiconductor materials. This was exemplified by the broad range of papers presented at the International Conference on Hot Electrons in Semiconductors, held in Denton, Texas, in 1977. Hot electron physics has progressed from a limited phenomeno logical science to a full-fledged experimental and precision theo retical science. The conceptual base and subsequent applications have been widened and underpinned by the development of ab initio nonlinear quantum transport theory which complements and identifies the limitations of the traditional semi-classical Boltzmann-Bloch picture. Such diverse areas as large polarons, pico-second laser excitation, quantum magneto-transport, sub-three dimensional systems, and of course device dynamics all have been shown to be strongly interactive with more classical hot electron pictures.
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Author: 
Author: Michael A. Stroscio
Author: A.S. Nowick
Author: Wengang (Wayne) Bi
Author: T.A. Kaplan
Author: The Minerals, Metals & Materials Society
Author: 
Author: Bruno Dagens
Author: Tapan Chatterji
Author: David K. Ferry