Towards An Unambiguous Electron Magnetic Chiral Dichroism Emcd Measurement In A Transmission Electron Microscope Tem

Author : Christian Hurm
Publisher : Logos Verlag Berlin GmbH
Page : 122 pages
File Size : 40,9 Mb
Release : 2009
Category : Science
ISBN : 9783832521080

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Towards an Unambiguous Electron Magnetic Chiral Dichroism (EMCD) Measurement in a Transmission Electron Microscope (TEM) by Christian Hurm Pdf

The intention of the ChiralTEM project (2004-2007) was the detection of electron (energy loss) magnetic chiral dichroism in a transmission electron microscope (TEM), in analogy to X-ray magnetic circular dichroism (XMCD). For the experiments, single-crystal electron transparent specimen's with magnetic induction perpendicular to the specimen's plane are required. In this thesis, different preparation techniques are evaluated regarding their usability to produce ideal specimen's for a verification of EMCD. After the demonstration of a dichroic measurement, an obvious way to prove the chiral effect is to invert the specimen's magnetization from parallel to antiparallel to the electron beam trajectory, leaving all other parameters of the experimental setup unchanged. For this case, one would - according to theory - expect a change in the dichroic signal measured. In the magnetic field of the objective lens of a 300kV TEM, typical ferromagnetic specimens will be close to saturation perpendicular to the specimen's plane. Reversing the current through the coils of the objective lens will then simply invert the magnetization of the specimen. In consequence, any magnetic chiral effect is expected to change sign. A switching unit for Tecnai microscopes has been constructed for save commutation of the lens currents. The direct sensitivity of the dichroic signal to the direction of the magnetization gives evidence to the magnetic origin of the effect.

Author : Jinkui Tang,Peng Zhang
Publisher : Springer
Page : 0 pages
File Size : 43,9 Mb
Release : 2016-10-18
Category : Science
ISBN : 3662514842

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Lanthanide Single Molecule Magnets by Jinkui Tang,Peng Zhang Pdf

This book begins by providing basic information on single-molecule magnets (SMMs), covering the magnetism of lanthanide, the characterization and relaxation dynamics of SMMs and advanced means of studying lanthanide SMMs. It then systematically introduces lanthanide SMMs ranging from mononuclear and dinuclear to polynuclear complexes, classifying them and highlighting those SMMs with high barrier and blocking temperatures – an approach that provides some very valuable indicators for the structural features needed to optimize the contribution of an Ising type spin to a molecular magnet. The final chapter presents some of the newest developments in the lanthanide SMM field, such as the design of multifunctional and stimuli-responsive magnetic materials as well as the anchoring and organization of the SMMs on surfaces. In addition, the crystal structure and magnetic data are clearly presented with a wealth of illustrations in each chapter, helping newcomers and experts alike to better grasp ongoing trends and explore new directions. Jinkui Tang is a professor at Changchun Institute of Applied Chemistry, Chinese Academy of Sciences. Peng Zhang is currently pursuing his PhD at Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, with a specific focus on the molecular magnetism of lanthanide compounds under the supervision of Prof. Jinkui Tang.

Author : Peter W. Hawkes,Erwin Kasper
Publisher : Academic Press
Page : 755 pages
File Size : 47,5 Mb
Release : 2012-12-02
Category : Science
ISBN : 9780080984162

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Principles of Electron Optics by Peter W. Hawkes,Erwin Kasper Pdf

The three volumes in the PRINCIPLES OF ELECTRON OPTICS Series constitute the first comprehensive treatment of electron optics in over forty years. While Volumes 1 and 2 are devoted to geometrical optics, Volume 3 is concerned with wave optics and effects due to wave length. Subjects covered include: Derivation of the laws of electron propagation from SchrUdinger's equation Image formation and the notion of resolution The interaction between specimens and electrons Image processing Electron holography and interference Coherence, brightness, and the spectral function Together, these works comprise a unique and informative treatment of the subject. Volume 3, like its predecessors, will provide readers with both a textbook and an invaluable reference source.

Author : Frank de Groot,Akio Kotani
Publisher : CRC Press
Page : 512 pages
File Size : 41,6 Mb
Release : 2008-03-10
Category : Science
ISBN : 9781420008425

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Core Level Spectroscopy of Solids by Frank de Groot,Akio Kotani Pdf

Core level spectroscopy has become a powerful tool in the study of electronic states in solids. From fundamental aspects to the most recent developments, Core Level Spectroscopy of Solids presents the theoretical calculations, experimental data, and underlying physics of x-ray photoemission spectroscopy (XPS), x-ray absorption spectroscopy (XAS), x

Author : Martin Quack,Frederic Merkt
Publisher : John Wiley & Sons
Page : 2236 pages
File Size : 40,7 Mb
Release : 2011-09-26
Category : Science
ISBN : 9780470066539

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Handbook of High-resolution Spectroscopy by Martin Quack,Frederic Merkt Pdf

The field of High-Resolution Spectroscopy has been considerably extended and even redefined in some areas. Combining the knowledge of spectroscopy, laser technology, chemical computation, and experiments, Handbook of High-Resolution Spectroscopy provides a comprehensive survey of the whole field as it presents itself today, with emphasis on the recent developments. This essential handbook for advanced research students, graduate students, and researchers takes a systematic approach through the range of wavelengths and includes the latest advances in experiment and theory that will help and guide future applications. The first comprehensive survey in high-resolution molecular spectroscopy for over 15 years Brings together the knowledge of spectroscopy, laser technology, chemical computation and experiments Brings the reader up-to-date with the many advances that have been made in recent times Takes the reader through the range of wavelengths, covering all possible techniques such as Microwave Spectroscopy, Infrared Spectroscopy, Raman Spectroscopy, VIS, UV and VUV Combines theoretical, computational and experimental aspects Has numerous applications in a wide range of scientific domains Edited by two leaders in this field Provides an overview of rotational, vibration, electronic and photoelectron spectroscopy Volume 1 - Introduction: Fundamentals of Molecular Spectroscopy Volume 2 - High-Resolution Molecular Spectroscopy: Methods and Results Volume 3 - Special Methods & Applications

Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 42,8 Mb
Release : 2013
Category : Electronic
ISBN : OCLC:951261871

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Final Program by Anonim Pdf

Author : Rolf Haug
Publisher : Springer Science & Business Media
Page : 390 pages
File Size : 55,8 Mb
Release : 2008-11-27
Category : Science
ISBN : 9783540858591

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Advances in Solid State Physics 48 by Rolf Haug Pdf

The 2008 Spring Meeting of the Arbeitskreis Festkörperphysik was held in Berlin, Germany, between February 24 and February 29, 2008 in conjunction with the 72nd Annual Meeting of the Deutsche Physikalische Gesellschaft. The 2008 meeting was the largest physics meeting in Europe and among the largest physics meetings in the world in 2008.

Author : Surender Kumar Sharma
Publisher : Springer
Page : 613 pages
File Size : 43,6 Mb
Release : 2018-09-18
Category : Technology & Engineering
ISBN : 9783319929552

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Handbook of Materials Characterization by Surender Kumar Sharma Pdf

This book focuses on the widely used experimental techniques available for the structural, morphological, and spectroscopic characterization of materials. Recent developments in a wide range of experimental techniques and their application to the quantification of materials properties are an essential side of this book. Moreover, it provides concise but thorough coverage of the practical and theoretical aspects of the analytical techniques used to characterize a wide variety of functional nanomaterials. The book provides an overview of widely used characterization techniques for a broad audience: from beginners and graduate students, to advanced specialists in both academia and industry.

Author : Jill Guyonnet
Publisher : Springer Science & Business Media
Page : 159 pages
File Size : 45,8 Mb
Release : 2014-04-08
Category : Science
ISBN : 9783319057507

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Ferroelectric Domain Walls by Jill Guyonnet Pdf

Using the nano metric resolution of atomic force microscopy techniques, this work explores the rich fundamental physics and novel functionalities of domain walls in ferroelectric materials, the nano scale interfaces separating regions of differently oriented spontaneous polarization. Due to the local symmetry-breaking caused by the change in polarization, domain walls are found to possess an unexpected lateral piezoelectric response, even when this is symmetry-forbidden in the parent material. This has interesting potential applications in electromechanical devices based on ferroelectric domain patterning. Moreover, electrical conduction is shown to arise at domain walls in otherwise insulating lead zirconate titanate, the first such observation outside of multiferroic bismuth ferrite, due to the tendency of the walls to localize defects. The role of defects is then explored in the theoretical framework of disordered elastic interfaces possessing a characteristic roughness scaling and complex dynamic response. It is shown that the heterogeneous disorder landscape in ferroelectric thin films leads to a breakdown of the usual self-affine roughness, possibly related to strong pinning at individual defects. Finally, the roles of varying environmental conditions and defect densities in domain switching are explored and shown to be adequately modelled as a competition between screening effects and pinning.

Author : Shigemasa Suga,Akira Sekiyama
Publisher : Springer
Page : 389 pages
File Size : 43,8 Mb
Release : 2013-09-07
Category : Science
ISBN : 9783642375309

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Photoelectron Spectroscopy by Shigemasa Suga,Akira Sekiyama Pdf

Photoelectron spectroscopy is now becoming more and more required to investigate electronic structures of various solid materials in the bulk, on surfaces as well as at buried interfaces. The energy resolution was much improved in the last decade down to 1 meV in the low photon energy region. Now this technique is available from a few eV up to 10 keV by use of lasers, electron cyclotron resonance lamps in addition to synchrotron radiation and X-ray tubes. High resolution angle resolved photoelectron spectroscopy (ARPES) is now widely applied to band mapping of materials. It attracts a wide attention from both fundamental science and material engineering. Studies of the dynamics of excited states are feasible by time of flight spectroscopy with fully utilizing the pulse structures of synchrotron radiation as well as lasers including the free electron lasers (FEL). Spin resolved studies also made dramatic progress by using higher efficiency spin detectors and two dimensional spin detectors. Polarization dependent measurements in the whole photon energy spectrum of the spectra provide useful information on the symmetry of orbitals. The book deals with the fundamental concepts and approaches for the application of this technique to materials studies. Complementary techniques such as inverse photoemission, photoelectron diffraction, photon spectroscopy including infrared and X-ray and scanning tunneling spectroscopy are presented. This book provides not only a wide scope of photoelectron spectroscopy of solids but also extends our understanding of electronic structures beyond photoelectron spectroscopy.

Author : Anonim
Publisher : Academic Press
Page : 486 pages
File Size : 52,6 Mb
Release : 2016-08-26
Category : Medical
ISBN : 9780128054352

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The Resolution Revolution: Recent Advances In cryoEM by Anonim Pdf

cryoEM, a new volume in the Methods in Enzymology series, continues the legacy of this premier serial with quality chapters authored by leaders in the field. This volume covers research methods and new developments in recording images, the creation, evaluation and validation of 3D maps from the images, model building into maps and refinement of the resulting atomic structures, and applications of essentially single particle methods to helical structures and to sub-tomogram averaging. Continues the legacy of this premier serial with quality chapters authored by leaders in the field Covers research methods that determine the structures of biological molecules, a vital step for understanding their function Contains the technical developments underpinning the advances of cryoEM and captures the exciting insights that have resulted

Author : Peter W. Hawkes
Publisher : Academic Press
Page : 654 pages
File Size : 53,5 Mb
Release : 2013-11-06
Category : Science
ISBN : 9781483284651

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The Beginnings of Electron Microscopy by Peter W. Hawkes Pdf

The Beginnings of Electron Microscopy presents the technical development of electron microscope. This book examines the mechanical as well as the technical problems arising from the physical properties of the electron. Organized into 19 chapters, this book begins with an overview of the history of scanning electron microscopy and electron beam microanalysis. This text then explains the applications and capabilities of electron microscopes during the war. Other chapters consider the classical techniques of light microscopy. This book presents as well the schematic outline of the preparation techniques for investigation of nerve cells by electron microscopy. The final chapter deals with the historical account of the beginnings of electron microscopy in Russia. This book is a valuable resource for scientists, technologists, physicists, electrical engineers, designers, and technicians. Graduate students as well as researcher workers who are interested in the history of electron microscopy will also find this book extremely useful.

Author : Alistair M. Stephen,Glyn O. Phillips
Publisher : CRC Press
Page : 750 pages
File Size : 48,6 Mb
Release : 2016-04-19
Category : Technology & Engineering
ISBN : 9781420015164

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Food Polysaccharides and Their Applications by Alistair M. Stephen,Glyn O. Phillips Pdf

Comprehensive in scope, Food Polysaccharides and Their Applications, Second Edition explains the production aspects and the chemical and physical properties of the main classes of polysaccharaides consumed as food, highlighting their nutritional value and their technological characteristics. Chapters in this new edition detail the source,

Author : Anne M. Coghill,Lorrin R. Garson
Publisher : American Chemical Society
Page : 0 pages
File Size : 46,8 Mb
Release : 2006
Category : Authorship
ISBN : 0841239495

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ACS Style Guide by Anne M. Coghill,Lorrin R. Garson Pdf

In the time since the second edition of The ACS Style Guide was published, the rapid growth of electronic communication has dramatically changed the scientific, technical, and medical (STM) publication world. This dynamic mode of dissemination is enabling scientists, engineers, and medicalpractitioners all over the world to obtain and transmit information quickly and easily. An essential constant in this changing environment is the requirement that information remain accurate, clear, unambiguous, and ethically sound.This extensive revision of The ACS Style Guide thoroughly examines electronic tools now available to assist STM writers in preparing manuscripts and communicating with publishers. Valuable updates include discussions of markup languages, citation of electronic sources, online submission ofmanuscripts, and preparation of figures, tables, and structures. In keeping current with the changing environment, this edition also contains references to many resources on the internet.With this wealth of new information, The ACS Style Guide's Third Edition continues its long tradition of providing invaluable insight on ethics in scientific communication, the editorial process, copyright, conventions in chemistry, grammar, punctuation, spelling, and writing style for any STMauthor, reviewer, or editor. The Third Edition is the definitive source for all information needed to write, review, submit, and edit scholarly and scientific manuscripts.

Author : Joachim Stöhr,Hans Christoph Siegmann
Publisher : Springer Science & Business Media
Page : 827 pages
File Size : 40,5 Mb
Release : 2007-01-19
Category : Science
ISBN : 9783540302834

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Magnetism by Joachim Stöhr,Hans Christoph Siegmann Pdf

This text book gives a comprehensive account of magnetism, one of the oldest yet most vibrant fields of physics. It spans the historical development, the physical foundations and the continuing research underlying the subject. The book covers both the classical and quantum mechanical aspects of magnetism and novel experimental techniques. Perhaps uniquely, it discusses spin transport and magnetization dynamics phenomena associated with atomically and spin engineered nano-structures against the backdrop of spintronics and magnetic storage and memory applications. The book is for students, and serves as a reference for scientists in academia and research laboratories.