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Model Based Quantitative Scanning Transmission Electron Microscopy For Measuring Dynamic Structural Changes At The Atomic Scale
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Book Synopsis Model-based Quantitative Scanning Transmission Electron Microscopy for Measuring Dynamic Structural Changes at the Atomic Scale by : Annelies De wael
Download or read book Model-based Quantitative Scanning Transmission Electron Microscopy for Measuring Dynamic Structural Changes at the Atomic Scale written by Annelies De wael and published by . This book was released on 2021 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantitative Atomic-Resolution Electron Microscopy by :
Download or read book Quantitative Atomic-Resolution Electron Microscopy written by and published by Academic Press. This book was released on 2021-03-31 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative Atomic-Resolution Electron Microscopy, Volume 217, the latest release in the Advances in Imaging and Electron Physics series merges two long-running serials, Advances in Electronics and Electron Physics and Advances in Optical and Electron Microscopy. The series features extended articles on the physics of electron devices (especially semiconductor devices), particle optics at high and low energies, microlithography, image science, digital image processing, electromagnetic wave propagation, electron microscopy, and the computing methods. Chapters in this release include Statistical parameter estimation theory, Efficient fitting algorithm, Statistics-based atom counting , Atom column detection, Optimal experiment design for nanoparticle atom-counting from ADF STEM images, and more. Contains contributions from leading authorities on the subject matter Informs and updates on the latest developments in the field of imaging and electron physics Provides practitioners interested in microscopy, optics, image processing, mathematical morphology, electromagnetic fields, electrons and ion emission with a valuable resource
Book Synopsis Scanning Transmission Electron Microscopy by : Alina Bruma
Download or read book Scanning Transmission Electron Microscopy written by Alina Bruma and published by CRC Press. This book was released on 2020-12-20 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning Transmission Electron Microscopy is focused on discussing the latest approaches in the recording of high-fidelity quantitative annular dark-field (ADF) data. It showcases the application of machine learning in electron microscopy and the latest advancements in image processing and data interpretation for materials notoriously difficult to analyze using scanning transmission electron microscopy (STEM). It also highlights strategies to record and interpret large electron diffraction datasets for the analysis of nanostructures. This book: Discusses existing approaches for experimental design in the recording of high-fidelity quantitative ADF data Presents the most common types of scintillator-photomultiplier ADF detectors, along with their strengths and weaknesses. Proposes strategies to minimize the introduction of errors from these detectors and avenues for dealing with residual errors Discusses the practice of reliable multiframe imaging, along with the benefits and new experimental opportunities it presents in electron dose or dose-rate management Focuses on supervised and unsupervised machine learning for electron microscopy Discusses open data formats, community-driven software, and data repositories Proposes methods to process information at both global and local scales, and discusses avenues to improve the storage, transfer, analysis, and interpretation of multidimensional datasets Provides the spectrum of possibilities to study materials at the resolution limit by means of new developments in instrumentation Recommends methods for quantitative structural characterization of sensitive nanomaterials using electron diffraction techniques and describes strategies to collect electron diffraction patterns for such materials This book helps academics, researchers, and industry professionals in materials science, chemistry, physics, and related fields to understand and apply computer-science–derived analysis methods to solve problems regarding data analysis and interpretation of materials properties.
Book Synopsis Principles of Electron Optics, Volume 3 by : Peter W. Hawkes
Download or read book Principles of Electron Optics, Volume 3 written by Peter W. Hawkes and published by Academic Press. This book was released on 2022-02-21 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Electron Optic: Volume Three: Wave Optics, discusses this essential topic in microscopy to help readers understand the propagation of electrons from the source to the specimen, and through the latter (and from it) to the image plane of the instrument. In addition, it also explains interference phenomena, notably holography, and informal coherence theory. This third volume accompanies volumes one and two that cover new content on holography and interference, improved and new modes of image formation, aberration corrected imaging, simulation, and measurement, 3D-reconstruction, and more. The study of such beams forms the subject of electron optics, which divides naturally into geometrical optics where effects due to wavelength are neglected, with wave optics considered. Includes authoritative coverage of the fundamental theory behind electron beams Describes the interaction of electrons with solids and the information that can be obtained from electron-beam techniques Addresses recent, relevant research topics, including new content on holography and interference, new modes of image formation, 3D reconstruction and aberration corrected imaging, simulation and measurement
Book Synopsis Advances in Scanning Transmission Electron Microscopy for Materials Discovery and Innovation by : Berit Hansen Goodge
Download or read book Advances in Scanning Transmission Electron Microscopy for Materials Discovery and Innovation written by Berit Hansen Goodge and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Subtle interplay between structure, charge, and spin in the atomic lattice is the fundamental driver of the functional properties in crystalline quantum materials. These effects can be so subtle that in many cases just a few misplaced atoms are enough to change or suppress the desired material properties entirely. Probing these materials with quantitative detail at the atomic scale therefore offers key insights to the close link between material form and function. The scanning transmission electron microscope (STEM) is a powerful tool which grants access to detailed, quantitative measurements of such properties at the atomic scale. Here, a combination of high spatial-resolution imaging and high energy-resolution electron energy loss spectroscopy (EELS) is harnessed to probe local effects in a variety of quantum materials and these insights are further leveraged for the strategic design of new, tunable materials. Atomic-resolution imaging and spectroscopy rely on certain strict prerequisites ranging from sample suitability to environmental stability of the laboratory.Furthermore, the spatially localized measurements which are critical to understanding the fundamental physics at play in quantum systems can be limited by the practical realities of a material's robustness to measurement. Many quantum materials, however, are sensitive to radiation doses typically applied by the STEM probe, and the exotic phenomena they host exist only at cryogenic temperatures. These considerations have traditionally limited both the materials and the conditions which are studied, confined mostly to robust crystalline materials and ambient temperatures. Accessing exotic states in the STEM therefore necessitates significant advances in experimental capabilities, which are realized here through detector, sample stage, and electron source improvements. Together, these advances open the door to exploring both new materials and new phases in the STEM. Unconventional superconductivity is perhaps one of the most widely-studied phenomena in condensed matter physics, yet in many aspects remains one of the most mysterious. Here we study a subset of superconducting oxides exemplifies a few of the key questions in this field. Copper-based compounds are the prototypical "high-temperature'' superconductors, exhibiting remarkably robust superconductivity with critical temperatures reaching well over 100 K. Early theoretical predictions that nickel-based compounds with similar crystal and electronic structure could host similar properties were finally offered a platform for experimental validation with the discovery of superconducting infinite-layer nickelate thin films in 2019. Despite the nominal similarities between cuprates and nickelates, however, our STEM-EELS measurements reveals notable differences in the electronic landscape of these materials. These local measurements are key to disentangling which properties of the nickelate system reflect challenges of materials synthesis and which reflect the fundamental physics at work. But not all oxide superconductors are so closely related: in stark contrast to the cuprates, superconductivity in Sr2RuO4 is extremely sensitive to crystalline disorder. Local STEM-EELS measurements or Sr2RuO4thin films are used here to extract and characterize different types of disorder in the atomic lattice, thereby illustrating their distinct impacts on superconductivity. The STEM provides unique access to understanding the atomic-scale structures and interactions which impart functional or exotic properties to quantum materials. Detailed quantitative studies of oxide interfaces here inspire new approaches for symmetry templating oxide monolayers. Leveraging the insights of atomic-resolution STEM across a breadth of systems thus inspires and informs new methods for tunably controlling electronic properties in designer compounds.
Book Synopsis Atomic Scale Characterization of Materials Using Scanning Transmission Electron Microscopy by : Jeffery Andrew Aguiar
Download or read book Atomic Scale Characterization of Materials Using Scanning Transmission Electron Microscopy written by Jeffery Andrew Aguiar and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Coupling the development of emerging experimental techniques in STEM and EELS with a fundamental understanding of atomic electronic structure afforded by DFT represents the unique approach and intention of this thesis. Scanning transmission electron microscopes equipped with high-angle annular dark field (HAADF) detectors and Gatan image filters (GIF) provide images and spectra, where the image brightness is interpreted as a function of atomic mass and thickness, and elemental specific spectra provide a means for the exploration of electronic and chemical structure of materials at the angstrom size scale. Over the past 20 years, the application of EELS in STEM has enabled more accurate elemental identification and exploration of electronic and chemical structure on angstrom-length scales, and arguably has provided an unprecedented wealth of materials characterization compared to other available techniques. Many materials issues related to specific novel properties that cannot be analyzed using the traditional techniques of the past, however, still remain unanswered. These concepts require a married approach of experiment and theory to fully explain. The intent of this dissertation is the development of improved analysis techniques that derive quantitative atomic scale information in connection with unraveling the origins of materials properties linked to the electronic structure and chemistry of materials.
Book Synopsis In-Situ Transmission Electron Microscopy Experiments by : Renu Sharma
Download or read book In-Situ Transmission Electron Microscopy Experiments written by Renu Sharma and published by John Wiley & Sons. This book was released on 2023-05-15 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: In-Situ Transmission Electron Microscopy Experiments Design and execute cutting-edge experiments with transmission electron microscopy using this essential guide In-situ microscopy is a recently-discovered and rapidly-developing approach to transmission electron microscopy (TEM) that allows for the study of atomic and/or molecular changes and processes while they are in progress. Experimental specimens are subjected to stimuli that replicate near real-world conditions and their effects are observed at a previously unprecedented scale. Though in-situ microscopy is becoming an increasingly important approach to TEM, there are no current texts combining an up-to-date overview of this cutting-edge set of techniques with the experience of in-situ TEM professionals. In-Situ Transmission Electron Microscopy Experiments meets this need with a work that synthesizes the collective experience of myriad collaborators. It constitutes a comprehensive guide for planning and performing in-situ TEM measurements, incorporating both fundamental principles and novel techniques. Its combination of technical detail and practical how-to advice makes it an indispensable introduction to this area of research. In-Situ Transmission Electron Microscopy Experiments readers will also find: Coverage of the entire experimental process, from method selection to experiment design to measurement and data analysis Detailed treatment of multimodal and correlative microscopy, data processing and machine learning, and more Discussion of future challenges and opportunities facing this field of research In-Situ Transmission Electron Microscopy Experiments is essential for graduate students, post-doctoral fellows, and early career researchers entering the field of in-situ TEM.
Book Synopsis Modeling Nanoscale Imaging in Electron Microscopy by : Thomas Vogt
Download or read book Modeling Nanoscale Imaging in Electron Microscopy written by Thomas Vogt and published by Springer Science & Business Media. This book was released on 2012-03-02 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling Nanoscale Imaging in Electron Microscopy presents the recent advances that have been made using mathematical methods to resolve problems in microscopy. With improvements in hardware-based aberration software significantly expanding the nanoscale imaging capabilities of scanning transmission electron microscopes (STEM), these mathematical models can replace some labor intensive procedures used to operate and maintain STEMs. This book, the first in its field since 1998, will also cover such relevant concepts as superresolution techniques, special denoising methods, application of mathematical/statistical learning theory, and compressed sensing.
Book Synopsis 4D Electron Microscopy by : Ahmed H. Zewail
Download or read book 4D Electron Microscopy written by Ahmed H. Zewail and published by World Scientific. This book was released on 2010 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural phase transitions, mechanical deformations, and the embryonic stages of melting and crystallization are examples of phenomena that can now be imaged in unprecedented structural detail with high spatial resolution, and ten orders of magnitude as fast as hitherto. No monograph in existence attempts to cover the revolutionary dimensions that EM in its various modes of operation nowadays makes possible. The authors of this book chart these developments, and also compare the merits of coherent electron waves with those of synchrotron radiation. They judge it prudent to recall some important basic procedural and theoretical aspects of imaging and diffraction so that the reader may better comprehend the significance of the new vistas and applications now afoot. This book is not a vade mecum - numerous other texts are available for the practitioner for that purpose.
Book Synopsis In-Situ Transmission Electron Microscopy by : Litao Sun
Download or read book In-Situ Transmission Electron Microscopy written by Litao Sun and published by Springer Nature. This book was released on 2023-03-11 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on in-situ transmission electron microscopy (TEM), an investigatory technique used to observe a sample’s response to a given stimulus (including electron irradiation, thermal excitation, mechanical force, optical excitation, electric and magnetic fields) at the nanoscale in real time. The book introduces readers to the technical strategy behind the in-situ technique and its developments. It reviews the research frontiers of using in-situ TEM in energy conversion and storage, catalysis, nanomaterials synthesis, nanoelectronics, etc. Furthermore, it discusses the future prospects for in-situ TEM. The book offers a valuable guide for all undergraduate and graduate students who are interested in TEM characterization technology. It also serves as a reference source on cutting-edge in-situ techniques for researchers and engineers.
Book Synopsis Transmission Electron Microscopy in Micro-nanoelectronics by : Alain Claverie
Download or read book Transmission Electron Microscopy in Micro-nanoelectronics written by Alain Claverie and published by John Wiley & Sons. This book was released on 2013-01-29 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, the availability of bright and highly coherent electron sources and sensitive detectors has radically changed the type and quality of the information which can be obtained by transmission electron microscopy (TEM). TEMs are now present in large numbers not only in academia, but also in industrial research centers and fabs. This book presents in a simple and practical way the new quantitative techniques based on TEM which have recently been invented or developed to address most of the main challenging issues scientists and process engineers have to face to develop or optimize semiconductor layers and devices. Several of these techniques are based on electron holography; others take advantage of the possibility of focusing intense beams within nanoprobes. Strain measurements and mappings, dopant activation and segregation, interfacial reactions at the nanoscale, defect identification and specimen preparation by FIB are among the topics presented in this book. After a brief presentation of the underlying theory, each technique is illustrated through examples from the lab or fab.
Book Synopsis Transmission Electron Microscopy by : C. Barry Carter
Download or read book Transmission Electron Microscopy written by C. Barry Carter and published by Springer. This book was released on 2016-08-24 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text is a companion volume to Transmission Electron Microscopy: A Textbook for Materials Science by Williams and Carter. The aim is to extend the discussion of certain topics that are either rapidly changing at this time or that would benefit from more detailed discussion than space allowed in the primary text. World-renowned researchers have contributed chapters in their area of expertise, and the editors have carefully prepared these chapters to provide a uniform tone and treatment for this exciting material. The book features an unparalleled collection of color figures showcasing the quality and variety of chemical data that can be obtained from today’s instruments, as well as key pitfalls to avoid. As with the previous TEM text, each chapter contains two sets of questions, one for self assessment and a second more suitable for homework assignments. Throughout the book, the style follows that of Williams & Carter even when the subject matter becomes challenging—the aim is always to make the topic understandable by first-year graduate students and others who are working in the field of Materials Science Topics covered include sources, in-situ experiments, electron diffraction, Digital Micrograph, waves and holography, focal-series reconstruction and direct methods, STEM and tomography, energy-filtered TEM (EFTEM) imaging, and spectrum imaging. The range and depth of material makes this companion volume essential reading for the budding microscopist and a key reference for practicing researchers using these and related techniques.
Book Synopsis Scanning Transmission Electron Microscopy by : Stephen J. Pennycook
Download or read book Scanning Transmission Electron Microscopy written by Stephen J. Pennycook and published by Springer Science & Business Media. This book was released on 2011-03-24 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning transmission electron microscopy has become a mainstream technique for imaging and analysis at atomic resolution and sensitivity, and the authors of this book are widely credited with bringing the field to its present popularity. Scanning Transmission Electron Microscopy(STEM): Imaging and Analysis will provide a comprehensive explanation of the theory and practice of STEM from introductory to advanced levels, covering the instrument, image formation and scattering theory, and definition and measurement of resolution for both imaging and analysis. The authors will present examples of the use of combined imaging and spectroscopy for solving materials problems in a variety of fields, including condensed matter physics, materials science, catalysis, biology, and nanoscience. Therefore this will be a comprehensive reference for those working in applied fields wishing to use the technique, for graduate students learning microscopy for the first time, and for specialists in other fields of microscopy.
Book Synopsis Atomic-scale Imaging of Surfaces and Interfaces by : D. K. Biegelsen
Download or read book Atomic-scale Imaging of Surfaces and Interfaces written by D. K. Biegelsen and published by . This book was released on 1993 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials tunneling microscopy for hydrogen-desorption-induced structural change of Si(111) surface; Steps on the (110) surface InP; Scanning tunneling microscopy on charge density waves in layered compounds; Design of ultra high vacuum scanning electron microscope combined with scanning tunneling microscope; Scanning tunneling microscopy perspective of structures on reduced SrTiO3(001) surfaces; Surface structure and electronic property of reduced SrTiO3(100) surface observed by STM/STS; Metastable structural surface excitations and concerted adatom motions: a STM study of atomic motions within a semiconductor surface; Mechanisms and energetics of surface atomic processes: an atom-probe field ion microscope study; Atomic arrangement of Al near the phase boundaries between square root 3X square root 3-Al and 7X7 structures on Si(111) surfaces; Growth and surface morphology of thin silicon films using an atomic force microscope; Solving interface structures by combined electron microscopy and X-ray diffraction; Quantitative hrem study of the atomic structure of the sum(310)/[001] symmetric tilt grain boundary in Nb; Hrtem observation of a sum =3 \{112\} bicrystal boundary in aluminum; Atomic structure of the (310) twin in niobium; theoretical predictions and comparison with experimental observation; Quantitative high-resolution electron microscopy of grain boundaries in gamma-Al2=3; Comparisons of observed and simulated atomic structures of Pd/NiO heterophase interfaces; Atomic structure of sum =5 (130) symmetrical tilt boundary in strontium titanate; Assessment of GaInAs/GaInAsP interdiffusion profiles obtained using stem-edx and hrem; Electron microscopy characterization of epitaxial growth of Ag deposited on MgO microcubes; Real-time viewinf of dynamic processes on CdTe surfaces at elevated temperature; AFM imaging of the crystalline-to-amorphous transition on the surface of ion-implanted mica; AFM imagings of ferritin molecules bound to LB films of poly-1-benzyl-L-histidine; Artifacts in atomic force microscopy of nanoporous and mesoporous fiducial samples; Al induced reconstructions on the Si(111) surfaces studied by scanning tunneling microscopy; Structure of the sum =3 (111) grain boundary in Cu-1.5%Sb; High resolution electron microscopy of sum =3 NiSi2 (111)/(115) Si and NiSi2(221)/(001)Si interfaces; Image simulations of Ge twin boundaries; Surface structure of oxide catalyst microcrystals: high resolution electron microscopy study; A microstructural study of reaction-bonded silicon carbide...
Book Synopsis Nanometrology Using the Transmission Electron Microscope by : Vlad Stolojan
Download or read book Nanometrology Using the Transmission Electron Microscope written by Vlad Stolojan and published by Morgan & Claypool Publishers. This book was released on 2015-10-12 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Transmission Electron Microscope (TEM) is the ultimate tool to see and measure structures on the nanoscale and to probe their elemental composition and electronic structure with sub-nanometer spatial resolution. Recent technological breakthroughs have revolutionized our understanding of materials via use of the TEM, and it promises to become a significant tool in understanding biological and biomolecular systems such as viruses and DNA molecules. This book is a practical guide for scientists who need to use the TEM as a tool to answer questions about physical and chemical phenomena on the nanoscale.
Book Synopsis Scanning Transmission Electron Microscopy by : Alina Bruma
Download or read book Scanning Transmission Electron Microscopy written by Alina Bruma and published by CRC Press. This book was released on 2020-12-22 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning Transmission Electron Microscopy: Advanced Characterization Methods for Materials Science Applications The information comprised in this book is focused on discussing the latest approaches in the recording of high-fidelity quantitative annular dark-field (ADF) data. It showcases the application of machine learning in electron microscopy and the latest advancements in image processing and data interpretation for materials notoriously difficult to analyze using scanning transmission electron microscopy (STEM). It also highlights strategies to record and interpret large electron diffraction datasets for the analysis of nanostructures. This book: Discusses existing approaches for experimental design in the recording of high-fidelity quantitative ADF data Presents the most common types of scintillator-photomultiplier ADF detectors, along with their strengths and weaknesses. Proposes strategies to minimize the introduction of errors from these detectors and avenues for dealing with residual errors Discusses the practice of reliable multiframe imaging, along with the benefits and new experimental opportunities it presents in electron dose or dose-rate management Focuses on supervised and unsupervised machine learning for electron microscopy Discusses open data formats, community-driven software, and data repositories Proposes methods to process information at both global and local scales, and discusses avenues to improve the storage, transfer, analysis, and interpretation of multidimensional datasets Provides the spectrum of possibilities to study materials at the resolution limit by means of new developments in instrumentation Recommends methods for quantitative structural characterization of sensitive nanomaterials using electron diffraction techniques and describes strategies to collect electron diffraction patterns for such materials This book helps academics, researchers, and industry professionals in materials science, chemistry, physics, and related fields to understand and apply computer-science–derived analysis methods to solve problems regarding data analysis and interpretation of materials properties.
Book Synopsis Quantitative Scanning Transmission Electron Microscopy of Electronic and Nanostructured Materials by :
Download or read book Quantitative Scanning Transmission Electron Microscopy of Electronic and Nanostructured Materials written by and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electronic and nanostructured materials have been investigated using advanced scanning transmission electron microscopy (STEM) techniques. The first topic is the microstructure of Ga and Sb-doped ZnO. Ga-doped ZnO is a candidate transparent conducting oxide material. The microstructure of GZO thin films grown by MBE under different growth conditions and different substrates were examined using various electron microscopy (EM) techniques. The microstructure, prevalent defects, and polarity in these films strongly depend on the growth conditions and substrate. Sb-doped ZnO nanowires have been shown to be the first route to stable p-type ZnO. Using Z-contrast STEM, I have showed that an unusual microstructure of Sb-decorated head-to-head inversion domain boundaries and internal voids contain all the Sb in the nanowires and cause the p-type conduction. InGaN thin films and InGaN / GaN quantum wells (QW) for light emitting diodes are the second topic. Low-dose Z-contrast STEM, PACBED, and EDS on InGaN QW LED structures grown by MOCVD show no evidence for nanoscale composition variations, contradicting previous reports. In addition, a new extended defect in GaN and InGaN was discovered. The defect consists of a faceted pyramid-shaped void that produces a threading dislocation along the [0001] growth direction, and is likely caused by carbon contamination during growth. Non-rigid registration (NRR) and high-precision STEM of nanoparticles is the final topic. NRR is a new image processing technique that corrects distortions arising from the serial nature of STEM acquisition that previously limited the precision of locating atomic columns and counting the number of atoms in images. NRR was used to demonstrate sub-picometer precision in STEM images of single crystal Si and GaN, the best achieved in EM. NRR was used to measure the atomic surface structure of Pt nanoacatalysts and Au nanoparticles, which revealed new bond length variation phenomenon of surface atoms. In adition, NRR allowed for measuring the 3D atomic structure of the nanoparticles with less than 1 atom uncertainty, a long-standing problem in EM. Finally, NRR was adapted to EDS spectrum images, significantly enhancing the signal to noise ratio and resolution of an EDS spectrum image of Ca-doped NdTiO3 compared to conventional methods.
