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Study Of Spin Polarized Scanning Tunneling Microscopy Spectroscopy On Ultra Thin Magnetic Films And Multilayers
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Book Synopsis Study of Spin-polarized Scanning Tunneling Microscopy, Spectroscopy on Ultra-thin Magnetic Films and Multilayers by : Toyo Kazu Yamada
Download or read book Study of Spin-polarized Scanning Tunneling Microscopy, Spectroscopy on Ultra-thin Magnetic Films and Multilayers written by Toyo Kazu Yamada and published by . This book was released on 2005 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Magnetic Ultra Thin Films, Multilayers and Surfaces by : F. Petroff
Download or read book Magnetic Ultra Thin Films, Multilayers and Surfaces written by F. Petroff and published by Elsevier. This book was released on 1997-12-18 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Symposium on Magnetic Ultrathin Films, Multilayers and Surfaces, hosted by the European Materials Research Society, was held at the Palais de la Musique et des Congré in Strasbourg, France on June 4-7, 1996. Its central theme was the relationship of magnetic properties and device performance to structure at the nano and micrometer length scale. Research on the magnetism of surfaces, ultrathin films and multilayers has increased dramatically during recent years. This development was triggered by the discovery of coupling between ferromagnetic layers across nonmagnetic spacer layers and of the giant magnetoresistance effect in systems of reduced dimension using various micro and nanofabrication techniques has become a subject of special interest. It is certainly the promising application potential of these effects in new magnetic recording device geometries which causes this intensive research, which is done both by companies and at universities and research institutes. A selection of invited and contributed papers presented at the Symposium and accepted for publication is contained in this volume. The contents of these proceedings are organized into seven sections. A. Nanowires, Nanoparticles, Nanostructuring B. Ultrathin Films and Surfaces, Characterization C. Giant Magnetoresistance D. Coupling, Tunneling E. Growth, Structure, Magnetism F. Growth, Structure, Magnetoresistance G. Coupling, Magnetic processes, Magneto-optics. The first four sections contain invited and oral contributed papers in the listed research domains, while the last three sections contain the contributions presented during three large poster sessions.
Book Synopsis Spin-polarized Scanning Tunneling Microscopy and Spectroscopy Study of Fe and Co Nanostructures on Cu(111) by :
Download or read book Spin-polarized Scanning Tunneling Microscopy and Spectroscopy Study of Fe and Co Nanostructures on Cu(111) written by and published by . This book was released on 2013 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spin-Polarized Scanning Tunneling Microscopy/Spectroscopy (SPSTM/S); Fe/Co islands; Cu(111); Electron confinement; Tips for spin-polarized STM; Spin-dependent Smoluchowski effect; Nanomagnetism; Magnetic switching field; Decorated islands; Spin polarization
Book Synopsis Spin-polarized Scanning Tunneling Microscopy Studies of Topological Magnetism by : Jacob John Repicky
Download or read book Spin-polarized Scanning Tunneling Microscopy Studies of Topological Magnetism written by Jacob John Repicky and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: As conventional electronics approach the physical limits of size and speed, desire for more capable and energy efficient technologies has driven studies of the individual and collective behavior of electron spins within solid state materials to achieve new forms of information processing. Recent developments in this field of spintronics have led to the discovery particle-like magnetic textures called magnetic skyrmions where spins are arranged in a swirling, vortex-like pattern. To advance the understanding of materials capable of stabilizing magnetic skyrmions and the mechanisms that govern their stability and dynamical properties, we use spin-polarized scanning tunneling microscopy. The research presented here builds on the connection between the physical and magnetic structure at the surface of materials. First, we observe novel surface structures and investigate the electronic and magnetic properties of Cr(001) and Fe/Ir(111), two systems that can be used to characterize the magnetic tip of the scanning tunneling microscope. Next, we detail a technique to determine the grain structure of B20-type magnetic materials FeGe and MnGe, where the structural chirality is known to determine the chirality of the magnetic textures. The surface termination, stacking order of the layered atomic lattice, and grain chirality can all be identified by analysis of the atomic corrugation and insights from density functional theory calculations. Finally, we observe novel topological spin textures at the surface of MnGe(111). The stabilization of these is correlated to structural deformation of the film, and their three-dimensional structure is deduced based on comparison of the spin-polarized imaging with micromagnetic simulations.
Book Synopsis Towards magnetic resonance in scanning tunneling microscopy using heterodyne detection by : Peter, Moritz
Download or read book Towards magnetic resonance in scanning tunneling microscopy using heterodyne detection written by Peter, Moritz and published by KIT Scientific Publishing. This book was released on 2015-09-18 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work introduces a new concept for magnetic resonance measurements in the GHz regime inside a scanning tunneling microscope. It is based on heterodyne detection in a spin-polarized tunneling barrier. The experimental requirements, including a new method to suppress transmission effects, are explained. Measurements on three model systems which were studied to validate the new technique are presented and compared to simulations.
Download or read book Nanomagnetism written by and published by Elsevier. This book was released on 2006-03-27 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoscience is of central importance in the physical and biological sciences and is now pervasive in technology. However nanomagnetism has a special role to play as magnetic properties depend uniquely on both dimensionality and lengthscales. Nanomagnetism is already central to data storage, sensor and device technologies but is increasingly being used in the life sciences and medicine. This volume aims to introduce scientists, computer scientists, engineers and technologists from diverse fields to this fascinating and technologically important new branch of nanoscience. The volume should appeal to both the interested general reader but also to the researcher wishing to obtain an overview of this fast moving field. The contributions come from acknowledged leaders in the field who each give authoritative accounts of key fundamental aspects of nanomagnetism to which they have themselves made a major contribution. After a brief introduction by the editors, Wu first surveys the fundamental properties of magnetic nanostructures. The interlayer exchange interactions within magnetic multilayer structures is next discussed by Stiles. Camley then discusses the static, dynamic and thermal properties of magnetic multilayers and nanostructures, followed by an account of the phenomenon of exchange anisotropy by Berkowitz and Kodama. This latter phenomenon is widely in current read head devices for example. The transport properties of nanostructures also are spectacular, and again underpin computer technology, as we see from the discussion of giant magnetoresistance (GMR) and tunnelling magnetoresistance (TMR) presented by Fert and his colleagues. Beyond GMR and TMR we look to the field of spintronics where new electronic devices are envisioned and for which quantumcomputing may depend as discussed in the chapter by Flatte and Jonker.The volume concludes with discussion of the recently discovered phenomenon of current induced switching of magnetization by Edwards and Mathon. * Subject is in the forefront of nanoscience* All Section authors are leading figures in this key field* Presentations are accessible to non specialists, with focus on underlying fundamentals
Book Synopsis Growth and Scanning Tunneling Microscopy Studies of Magnetic Films on Semiconductors and Development of Molecular Beam Epitaxy/pulsed Laser Deposition and Cryogenic Spin-polarized Scanning Tunneling Microscopy System by : Wenzhi Lin
Download or read book Growth and Scanning Tunneling Microscopy Studies of Magnetic Films on Semiconductors and Development of Molecular Beam Epitaxy/pulsed Laser Deposition and Cryogenic Spin-polarized Scanning Tunneling Microscopy System written by Wenzhi Lin and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Growth, Characterization, and Properties of Ultrathin Magnetic Films and Multilayers by : Berend Thomas Jonker
Download or read book Growth, Characterization, and Properties of Ultrathin Magnetic Films and Multilayers written by Berend Thomas Jonker and published by . This book was released on 1989 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Springer Handbook of Surface Science by : Mario Rocca
Download or read book Springer Handbook of Surface Science written by Mario Rocca and published by Springer Nature. This book was released on 2021-01-14 with total page 1273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook delivers an up-to-date, comprehensive and authoritative coverage of the broad field of surface science, encompassing a range of important materials such metals, semiconductors, insulators, ultrathin films and supported nanoobjects. Over 100 experts from all branches of experiment and theory review in 39 chapters all major aspects of solid-state surfaces, from basic principles to applications, including the latest, ground-breaking research results. Beginning with the fundamental background of kinetics and thermodynamics at surfaces, the handbook leads the reader through the basics of crystallographic structures and electronic properties, to the advanced topics at the forefront of current research. These include but are not limited to novel applications in nanoelectronics, nanomechanical devices, plasmonics, carbon films, catalysis, and biology. The handbook is an ideal reference guide and instructional aid for a wide range of physicists, chemists, materials scientists and engineers active throughout academic and industrial research.
Book Synopsis Publications of the National Institute of Standards and Technology ... Catalog by : National Institute of Standards and Technology (U.S.)
Download or read book Publications of the National Institute of Standards and Technology ... Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1991 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scanning Tunneling Microscopy and Low Energy Electron Microscopy of Metal Overlayers on Metal Surfaces by :
Download or read book Scanning Tunneling Microscopy and Low Energy Electron Microscopy of Metal Overlayers on Metal Surfaces written by and published by . This book was released on 1995 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin metal films are of ever increasing importance as the scale of devices shrinks. In order to provide new insight into the atomic details of metal film structure and the nanoscopic details of magnetic domains, efforts were made to study thin metal films on tungsten single crystals using both scanning tunneling microscopy (STM) and spin polarized low energy electron microscopy (SPLEEM). Difficulties were encountered with the as-delivered SPLEEM instrument which required extensive efforts to rectify. STM investigators were directed towards understanding the structure of multilayer metal films on W(111) and Al2O3(0001). Atomic models for a number of different and complex surface structures are derived for Au films on W(l10) for coverages between 0.5 and 5 monolayers. STM studies of sputter deposited Pt films on sapphire substrates, for use as seed layers for epitaxial spin valves, are described. By varying the Pt layer thickness and deposition temperature, continuous epitaxial thin films were developed. An epitaxial spin valve was constructed and assessed by magneto-transport measurements. Future opportunities for improved understanding of magnetic and electrical phenomena in thin films are briefly described. p1.
Download or read book Metals Abstracts written by and published by . This book was released on 1998 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Roland Wiesendanger Publisher :Springer Science & Business Media ISBN 13 :9783540638155 Total Pages :238 pages Book Rating :4.6/5 (381 download)
Book Synopsis Scanning Probe Microscopy by : Roland Wiesendanger
Download or read book Scanning Probe Microscopy written by Roland Wiesendanger and published by Springer Science & Business Media. This book was released on 1998-04-16 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning Probe Microscopy - Analytical Methods provides a comprehensive overview of the analytical methods on the nanometer scale based on scanning probe microscopy and spectroscopy. Numerous examples of applications of the chemical contrast mechanism down to the atomic scale in surface physics and chemistry are discussed with extensive references to original work in the recent literature.
Book Synopsis An Investigation of Materials at the Intersection of Topology and Magnetism Using Scanning Tunneling Microscopy by : Robert Conner Walko
Download or read book An Investigation of Materials at the Intersection of Topology and Magnetism Using Scanning Tunneling Microscopy written by Robert Conner Walko and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Material systems that combine magnetism and topology have garnered intense interest recently due to predictions of a variety of phenomena such as the quantum anomalous Hall effect, chiral topological edge states, magnetoelectric effects, and Weyl semimetal and axion insulator phases. In this dissertation scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS) are used to investigate the structural and electronic properties of several materials that exist at the intersection of topology and magnetism such as topological insulators, van der Waals layered materials, two-dimensional magnets, and intrinsic magnetic topological insulators. Specifically, STM was used to confirm the growth quality and properties of thin films grown by molecular beam epitaxy including Bi2Se3, SnSe2, MnSe, and Fe3GeTe2. In the van der Waals heterostructure SnSe2/Bi2Se3 a moiré pattern was observed which was found to be correlated to a set of localized electronic states in STS measurements. STM was also used to provide feedback for the growth of the heterostructure MnSe/Bi2Se3, which led to successful growth of partial monolayers of MnSe. In Fe3GeTe2, a magnetic field dependent Kondo lattice behavior was observed as well as a ferromagnetic hysteresis loop using spin-polarized STM. In addition, this work reports the first STM study of the recently experimentally verified intrinsic antiferromagnetic topological insulator (AFM TI) MnBi2Se4. Its atomic and layered properties are found to reasonably match theoretical predictions. Two different terminations of its layered structure are observed on the surface with distinct electronic properties. In-gap states are observed near some step edges which could be related to predicted topological edge states. Another AFM TI, the related material MnBi2Te4, was also studied in which nanoscale surface manipulation using an STM tip was demonstrated.
Book Synopsis Low Temperature Scanning Tunneling Microscope Study of Metallic Thin Films and Nanostructures on the Semiconductor Substrates by : Shengyong Qin
Download or read book Low Temperature Scanning Tunneling Microscope Study of Metallic Thin Films and Nanostructures on the Semiconductor Substrates written by Shengyong Qin and published by . This book was released on 2008 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many properties of the thin films are different from the bulk value and in many cases, depend dramatically on the film thickness. In the metallic ultra-thin films epitaxially grown on the semiconductor substrate, the conduction electrons are confined by the vacuum and metal-semiconductor interface. When the film thickness is comparable to the electron Fermi wavelength, this confinement will produce discrete energy levels known as quantum well states (QWS), which dramatically modify the electronic structures of the thin film and this is called quantum size effect (QSE). QSE will have a profound effect on a lot of physical properties of the thin films. Among various systems exhibiting QSE, Pb/Si (111) is the most widely studied one and exhibits the richest phenomena in QSE. In this study, a home made low temperature Scanning Tunneling Microscopy/Spectroscopy (LT-STM/S) was used to study the superconductivities of the Pb thin films. Quantum oscillations of the superconductivity have been observed for the films down to 4 monolayer and the oscillation amplitude increases as the film gets thinner. To resolve the discrepancies between the superconductivities measured with ex-situ transport and in-situ STS. We also studied the influence of Au overlay on the Pb thin films with LT-STM/S, and found out the deposition of Au on Pb dramatically roughened the Pb films. Finally, we successfully grew large scale near perfect 2ML Pb films. There are two types of films which exhibit different Moiré patterns. LT-STS studies revealed there is big difference in the superconductivity Tc of these two films, both of which decreased dramatically from that of the 4ML film.
Book Synopsis Frontiers in Surface Science and Interface Science by : C.B. Duke
Download or read book Frontiers in Surface Science and Interface Science written by C.B. Duke and published by Gulf Professional Publishing. This book was released on 2002-05-21 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt: Any notion that surface science is all about semiconductors and coatings is laid to rest by this encyclopedic publication: Bioengineered interfaces in medicine, interstellar dust, DNA computation, conducting polymers, the surfaces of atomic nuclei - all are brought up to date. Frontiers in Surface and Interface Science - a milestone publication deserving a wide readership. It combines a sweeping expert survey of research today with an educated look into the future. It is a future that embraces surface phenomena on scales from the subatomic to the galactic, as well as traditional topics like semiconductor design, catalysis, and surface processing, modeling and characterization. And, great efforts have been made to express sophisticated ideas in an attractive and accessible way. Nanotechnology, surfaces for DNA computation, polymer-based electronics, soft surfaces, interstellar surface chemistry - all feature in this comprehensive collection.
Book Synopsis Towards Magnetic Resonance in Scanning Tunneling Microscopy Using Heterodyne Detection by : Moritz Peter
Download or read book Towards Magnetic Resonance in Scanning Tunneling Microscopy Using Heterodyne Detection written by Moritz Peter and published by . This book was released on 2020-10-09 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work introduces a new concept for magnetic resonance measurements in the GHz regime inside a scanning tunneling microscope. It is based on heterodyne detection in a spin-polarized tunneling barrier. The experimental requirements, including a new method to suppress transmission effects, are explained. Measurements on three model systems which were studied to validate the new technique are presented and compared to simulations. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
