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Author : Gordon Gammie
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (17 download)
Download or read book Design of a Scanning Tunneling Microscope for Studying Sliding Charge-density Wave Systems written by Gordon Gammie and published by . This book was released on 1987 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gordon Gammie
Publisher :
ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.:/5 (262 download)
Download or read book Scanning Tunneling Microscopy of Quasi-one-dimensional Charge-density Wave Materials written by Gordon Gammie and published by . This book was released on 1991 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning tunneling microscopy (STM) has been used to study the atomic and electronic structures of quasi-one-dimensional charge-density wave (CDW) materials. The two materials chosen for this study, NbSe$sb3$ and o-TaS$sb3$, exhibit numerous interesting characteristics associated with the formation and motion of the CDW. The purpose of these studies is to determine if the surface characteristics are sufficiently similar to the bulk characteristics to learn something about the microscopics of CDWs and their dynamics. Room temperature studies of NbSe$sb3$ show that at least two different surface structures are possible. The first is a slightly relaxed form of the bulk crystal structure, while the second suggests the presence of an additional atom on the type-I chains. The detailed structure of o-TaS$sb3$ is not known, but STM studies show that it is more closely related to the ZrSe$sb3$ structure than that of NbSe$sb3$ and m-TaS$sb3$, as had previously been assumed. The difference in the strength of the chalcogen pairing in the chains of o-TaS$sb3$ is much less than that of m-TaS$sb3$, with all chains exhibiting intermediate strength pairing. Low temperature studies of the two surfaces of NbSe$sb3$ show that the relaxed surface forms a faint CDW, while the adatom surface does not. One-dimensional fluctuations above the CDW transition temperature in o-TaS$sb3$ can be seen in STM images. Below the transition, the CDW is imaged and agrees well with the known wavevector. There are two uniformly distributed CDW maxima per unit cell along the b$sb{rm o}$-axis which, in conjunction with the room temperature lattice images, explains some of the differences between the CDW characteristics of o-TaS$sb3$ and m-TaS$sb3$. All attempts to slide the CDW on the surfaces of these materials have been unsuccessful.
Author : Ruth Ellen Thomson
Publisher :
ISBN 13 :
Total Pages : 362 pages
Book Rating : 4.:/5 (33 download)
Download or read book Scanning Tunneling Microscopy of Charge Density Wave Structure in 1T-TaS2 written by Ruth Ellen Thomson and published by . This book was released on 1991 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hui Wang
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (663 download)
Download or read book Low Temperature Scanning Tunneling Microscopy and Spectroscopy written by Hui Wang and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Brian D. Burk
Publisher :
ISBN 13 :
Total Pages : 374 pages
Book Rating : 4.:/5 (33 download)
Download or read book Scanning Tunneling Microscopy and X-ray Diffraction of Charge Density Wave Materials and the Rubidium Isotope Effect in Superconducting Rb3C60 written by Brian D. Burk and published by . This book was released on 1994 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. Neddermeyer
Publisher : Springer Science & Business Media
ISBN 13 : 9401118124
Total Pages : 275 pages
Book Rating : 4.4/5 (11 download)
Download or read book Scanning Tunneling Microscopy written by H. Neddermeyer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: The publication entitled "Surface Studies by Scanning Tunneling Mi Rl croscopy" by Binnig, Rohrer, Gerber and Weibel of the IBM Research Lab oratory in Riischlikon in 1982 immediately raised considerable interest in the sur face science community. It was demonstrated in Reference R1 that images from atomic structures of surfaces like individual steps could be obtained simply by scanning the surface with a sharp metal tip, which was kept in a constant distance of approximately 10 A from the sample surface. The distance control in scanning tunneling microscopy (STM) was realized by a feedback circuit, where the electri cal tunneling current through the potential barrier between tip and sample is used for regulating the tip position with a piezoelectric xyz-system. A similar experi mental approach has already been described by Young et al. for the determination l of the macroscopic roughness of a surface. A number of experimental difficulties had to be solved by the IBM group until this conceptual simple microscopic method could be applied successfully with atomic resolution. Firstly, distance and scanning control of the tip have to be operated with sufficient precision to be sensitive to atomic structures. Secondly, sample holder and tunneling unit have to be designed in such a way that external vibrations do not influence the sample-tip distance and that thermal or other drift effects become small enough during measurement of one image.
Author : C. Julian Chen
Publisher : Oxford University Press, USA
ISBN 13 : 0195071506
Total Pages : 469 pages
Book Rating : 4.1/5 (95 download)
Download or read book Introduction to Scanning Tunneling Microscopy written by C. Julian Chen and published by Oxford University Press, USA. This book was released on 1993 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: A graduate-level introduction to scanning tunnelling microscopy, which explains how the method's ability to map microscopic surfaces non-destructively has found major applications in physics, surface science, materials science, biology, chemistry and engineering.
Author : Aleksandra T. Tomic
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.3/5 (129 download)
Download or read book Scanning Tunneling Microscopy of Complex Electronic Materials written by Aleksandra T. Tomic and published by . This book was released on 2008 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1170 pages
Book Rating : 4.3/5 (91 download)
Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dilushan R. Jayasundara
Publisher :
ISBN 13 :
Total Pages : 184 pages
Book Rating : 4.:/5 (431 download)
Download or read book Design and Construction of a Low Temperature Scanning Tunneling Microscope for Studying High Temperature Superconductivity written by Dilushan R. Jayasundara and published by . This book was released on 2008 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ping Meng
Publisher :
ISBN 13 :
Total Pages : 262 pages
Book Rating : 4.:/5 (287 download)
Download or read book A novel design of a scanning tunneling microscope (STM) system combined with a high resolution optical microscope for cross-sectional studies of semiconductors written by Ping Meng and published by . This book was released on 1993 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 892 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ashok K. Singh
Publisher : Academic Press
ISBN 13 : 012801492X
Total Pages : 556 pages
Book Rating : 4.1/5 (28 download)
Download or read book Engineered Nanoparticles written by Ashok K. Singh and published by Academic Press. This book was released on 2015-11-24 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineered Nanoparticles: Structure, Properties and Mechanisms of Toxicity is an indispensable introduction to engineered nanomaterials (ENM) and their potential adverse effects on human health and the environment. Although research in the area of pharmacology and toxicology of ENM is rapidly advancing, a possible correlation between their physicochemical properties and biomedical properties or toxicity is not yet fully understood. This understanding is essential to develop strategies for the safe applications and handling of ENM. The book comprehensively defines the current understanding of ENM toxicity, first describing these materials and their physicochemical properties, and then discussing the toxicological theory and methodology before finally demonstrating the potential impact of ENM on the environment and human health. It represents an essential reference for students and investigators in toxicology, pharmacology, chemistry, material sciences, medicine, and those in related disciplines who require an introduction to ENM and their potential toxicological effects. Provides state-of-the-art physicochemical descriptions and methodologies for the characterization of engineered nanomaterials (ENM) Describes the potential toxicological effects of ENM and the nanotoxicological mechanisms of action Presents how to apply theory to practice in a public health and risk assessment setting
Author :
Publisher :
ISBN 13 :
Total Pages : 1440 pages
Book Rating : 4.:/5 (31 download)
Download or read book Government Reports Annual Index written by and published by . This book was released on 1987 with total page 1440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vladimir N Uversky
Publisher : Academic Press
ISBN 13 : 0123978211
Total Pages : 556 pages
Book Rating : 4.1/5 (239 download)
Download or read book Bio-nanoimaging written by Vladimir N Uversky and published by Academic Press. This book was released on 2013-11-05 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bio-Nanoimaging: Protein Misfolding & Aggregation provides a unique introduction to both novel and established nanoimaging techniques for visualization and characterization of misfolded and aggregated protein species. The book is divided into three sections covering: - Nanotechnology and nanoimaging technology, including cryoelectron microscopy of beta(2)-microglobulin, studying amyloidogensis by FRET; and scanning tunneling microscopy of protein deposits - Polymorphisms of protein misfolded and aggregated species, including fibrillar polymorphism, amyloid-like protofibrils, and insulin oligomers - Polymorphisms of misfolding and aggregation processes, including multiple pathways of lysozyme aggregation, misfolded intermediate of a PDZ domain, and micelle formation by human islet amyloid polypeptide Protein misfolding and aggregation is a fast-growing frontier in molecular medicine and protein chemistry. Related disorders include cataracts, arthritis, cystic fibrosis, late-onset diabetes mellitus, and numerous neurodegenerative diseases like Alzheimer's and Parkinson's. Nanoimaging technology has proved crucial in understanding protein-misfolding pathologies and in potential drug design aimed at the inhibition or reversal of protein aggregation. Using these technologies, researchers can monitor the aggregation process, visualize protein aggregates and analyze their properties. Provides practical examples of nanoimaging research from leading molecular biology, cell biology, protein chemistry, biotechnology, genetics, and pharmaceutical labs Includes over 200 color images to illustrate the power of various nanoimaging technologies Focuses on nanoimaging techniques applied to protein misfolding and aggregation in molecular medicine
Author : Karl Johan Åström
Publisher : Princeton University Press
ISBN 13 : 069121347X
Total Pages : pages
Book Rating : 4.6/5 (912 download)
Download or read book Feedback Systems written by Karl Johan Åström and published by Princeton University Press. This book was released on 2021-02-02 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The essential introduction to the principles and applications of feedback systems—now fully revised and expanded This textbook covers the mathematics needed to model, analyze, and design feedback systems. Now more user-friendly than ever, this revised and expanded edition of Feedback Systems is a one-volume resource for students and researchers in mathematics and engineering. It has applications across a range of disciplines that utilize feedback in physical, biological, information, and economic systems. Karl Åström and Richard Murray use techniques from physics, computer science, and operations research to introduce control-oriented modeling. They begin with state space tools for analysis and design, including stability of solutions, Lyapunov functions, reachability, state feedback observability, and estimators. The matrix exponential plays a central role in the analysis of linear control systems, allowing a concise development of many of the key concepts for this class of models. Åström and Murray then develop and explain tools in the frequency domain, including transfer functions, Nyquist analysis, PID control, frequency domain design, and robustness. Features a new chapter on design principles and tools, illustrating the types of problems that can be solved using feedback Includes a new chapter on fundamental limits and new material on the Routh-Hurwitz criterion and root locus plots Provides exercises at the end of every chapter Comes with an electronic solutions manual An ideal textbook for undergraduate and graduate students Indispensable for researchers seeking a self-contained resource on control theory
Author : Bo N.J. Persson
Publisher : Springer Science & Business Media
ISBN 13 : 3662036460
Total Pages : 465 pages
Book Rating : 4.6/5 (62 download)
Download or read book Sliding Friction written by Bo N.J. Persson and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sliding friction is one of the oldest problems in physics and certainly one of the most important from a practical point of view. The ability to produce durable low-friction surfaces and lubricant fluids has become an important factor in the miniaturization of moving components in many technological devices, e.g., magnetic storage, recording systems, miniature motors and many aerospace components. This book will be useful to physicists, chemists, materials scientists, and engineers who want to understand sliding friction. The book (or parts of it) could also form the basis for a modern undergraduate or graduate course on tribology.
