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Scanning Tunneling Spectroscopy on Electron-Boson Interactions in Superconductors

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Book Series: Experimental Condensed Matter Physics / Karlsruher Institut für Technologie, Physikalisches Institut ISSN: 21919925 ISBN: 9783731502388 Year: Volume: 13 Pages: VI, 128 p. DOI: 10.5445/KSP/1000041865 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Physics (General)
Added to DOAB on : 2019-07-30 20:02:01
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This work describes the experimental study of electron-boson interactions in superconductors by means of inelastic electron tunneling spectroscopy performed with a scanning tunneling microscope (STM) at temperatures below 1 K. This new approach allows the direct measurement of the Eliashberg function of conventional superconductors as demonstrated on lead (Pb) and niobium (Nb). Preparative experiments on unconventional iron-pnictides are presented in the end.

Magnetoelectric coupling at metal surfaces

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Book Series: Experimental Condensed Matter Physics / Karlsruher Institut für Technologie, Physikalisches Institut ISSN: 21919925 ISBN: 9783731500636 Year: Volume: 7 Pages: IV, 130 p. DOI: 10.5445/KSP/1000035715 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:58
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Nowadays, the development of magnetic data storage devices technique faces fundamental limitations which lead to a slow-down of the increase of areal storage density. Therefore, magnetoelectric coupling which allows to change the magnetic state of matter by means of an electric field attracted significant interest. In this work, scanning tunneling microscopy was used to show for the first time that magnetic information can be written on the nanometer scale by the application of electric fields.

Elektrochemische Herstellung und Charakterisierung von Nanostrukturen - Entwicklung ultrascharfer STM-Spitzen als Nanoelektroden

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ISBN: 3937300295 Year: DOI: 10.5445/KSP/1000001689 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:58

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In der vorliegenden Arbeit wurde ein elektrochemisches Raster-Sonden-Mikroskop dazu benutzt, gezielt Nanostrukturen herzustellen und zu charakterisieren. Das elektrochemische Umfeld bietet gegenüber den sonst angewandten Techniken den Vorteil, dass die Über- und Untersättigung an den beiden Arbeitselektroden frei eingestellt werden kann. Diese Methode erlaubt es lokal Nanostrukturen definierter Größe herzustellen. Mittels einer selbst aufgebauten UHV-Apparatur konnten Präparationstechniken zur reproduzierbaren Herstellung von geometrisch hoch definierten STM-Spitzen für nahezu jedes Metall entwickelt werden. Derart qualitativ hochwertige STM-Spitzen ermöglichten erstmals einen Strommessbereich von 10-6 bis10-12 Ampere abzudecken.Die entwickelten Instrumente konnten zur Untersuchung der Systeme Co bzw. Ni auf Au(111)-Substraten eingesetzt werden. Das Verfahren zur Erzeugung magnetischer Nanostrukturen wurde optimiert und erste spektroskopische Messungen an der Fest-/ Flüssiggrenzfläche konnten durchgeführt werden.

Electrochemical SPM study of 2D phase and 3D phase formation of Zn at the ionic liquid / Au(111) interface [online]

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ISBN: 3937300090 Year: DOI: 10.5445/KSP/1132004 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Chemistry (General)
Added to DOAB on : 2019-07-30 20:01:58

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Zn electrodeposition in the under- (UPD) and overpotential (OPD) ranges by means of in-situ Scanning Tunneling Microscopy (STM) was examined, supported by in-situ cyclic voltammetry and chronoamperometrie. The underpotential deposition of Zn follows a layer-by-layer growth. For the first time the formation of three successive Zn monolayers has been observed in the UPD range. It has been shown, that the UPD of Zn is complicated due to surface alloying. The same growth mechanism extends from the UPD into OPD range until Al bulk deposition sets in. The UPD of Al at 100 mV vs. Zn/Zn(II) is marked by Moiré pattern formation. For the first time in this system the effective tunneling barrier f has been measured by STS. A first insight into the 2D phase formation of electrodeposited Zn at the electrolyte / electrode interface was obtained from STM images at various times and potentials. Before a coherent layer is formed wormlike structures are observed characteristic of spinodal decomposition. This implies a first order phase transition, which has been resolved here for the first time for 2D electrodeposition.

Illustrated Manual of Pediatric Dermatology

Authors: --- ---
ISBN: 9780203488218 Year: Pages: 432 DOI: 10.3109/9780203488218 Language: English
Publisher: Taylor & Francis
Subject: Medicine (General)
Added to DOAB on : 2020-09-23 00:05:01
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Illustrated Manual of Pediatric Dermatology presents simple approaches to the problems that pediatricians and dermatologists see in their practices on a regular basis. Including approximately 300 color photographs to aid accurate diagnosis, this easy-to-use book provides a rapid reference guide to a broad range of pediatric and adolescent skin

Integrating Everything

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ISBN: 9781000192407 Year: Pages: 188 DOI: 10.1201/9781785230295 Language: English
Publisher: Taylor & Francis
Subject: Medicine (General)
Added to DOAB on : 2020-09-23 00:06:33
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Health practice has always been many things, with many constraints and pressures. These things have changed over time and still vary from place to place. Being a practitioner here and now is, from one perspective, no different to the way it has always been. It involves integration. It involves weaving together many threads into one whole tapestry. It involves taking a constrained and limited palate and painting freely. It may be a science, it may be technical, it may be psychological, it may be spiritual, but it is always an art, because it integrates everything in order to create. And what we create is better health.' Justin Amery This extraordinary new series fills a void in practitioner development and well-being. The books take a reflective step back from the tick-box, target-driven and increasingly regulated world of 21st century health practice; and invite us to revisit what health and health practice actually are. Building carefully on the science and philosophy of health, each book addresses the messy, complex and often chaotic world of real-life health practice and offers an ancient but now almost revolutionary understanding for students and experienced practitioners alike: that health practice is a fundamentally creative and compassionate activity. The series as a whole helps practitioners to redefine and recreate their daily practice in ways that are healthier for both patients and practitioners. The books provide a welcome antidote to demoralisation and burn-out amongst practitioners, reversing cynicism and reviving our feeling of pride in, and our understanding of, health practice. By observing practice life through different lenses, they encourage the development of efficiency, effectiveness and, above all, satisfaction. The fourth book in the series, The Integrated Practitioner: Integrating Everything, considers the 'we', the 'me' and the 'other' perspectives of books 1-3 and integrates everything into 'health practice' as a single entity. It recognises the multifaceted nature of healthcare, its different constraints and varied pressures, but also views it from a new perspective, fostering a happier, healthier and more skilful whole within the real-life, complex and often messy world of health practice. Brilliantly written, practitioners, students and trainees and GP trainers will find the enlightening, witty, conversational style a joy to read.

Keywords

Medical Education --- SCI-TECH --- MEDICINE --- STM

Mädchen auf dem Weg ins Erwerbsleben: Wünsche, Werte, Berufsbilder

Authors: ---
ISBN: 9783863882112 9783863880552 Year: Pages: 192 DOI: 10.3224/86388055 Language: German
Publisher: Verlag Barbara Budrich
Subject: Gender Studies
Added to DOAB on : 2019-03-22 11:21:06
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What do girls want from their future profession? What image do STM professions have in the eyes of girls? What do companies and institutions need to take into account when designing career guidance programmes for girls? The authors deal with these and other questions on gender-specific career guidance on the basis of evaluation results for Girls' Day 2013.

Towards magnetic resonance in scanning tunneling microscopy using heterodyne detection

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Book Series: Experimental Condensed Matter Physics / Karlsruher Institut für Technologie, Physikalisches Institut ISSN: 21919925 ISBN: 9783731504108 Year: Volume: 18 Pages: 151 p. DOI: 10.5445/KSP/1000048009 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Physics (General)
Added to DOAB on : 2019-07-30 20:01:59
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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.

Charged Particle Optics Theory

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ISBN: 9781482229950 Year: Pages: 369 DOI: 10.1201/9781315215310 Language: English
Publisher: Taylor & Francis
Subject: Mathematics --- Agriculture (General)
Added to DOAB on : 2020-09-23 00:06:18
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Charged Particle Optics Theory: An Introduction identifies the most important concepts of charged particle optics theory, and derives each mathematically from the first principles of physics. Assuming an advanced undergraduate-level understanding of calculus, this book follows a logical progression, with each concept building upon the preceding one. Beginning with a non-mathematical survey of the optical nature of a charged particle beam, the text: Discusses both geometrical and wave optics, as well as the correspondence between them Describes the two-body scattering problem, which is essential to the interaction of a fast charged particle with matter Introduces electron emission as a practical consequence of quantum mechanics Addresses the Fourier transform and the linear second-order differential equation Includes problems to amplify and fill in the theoretical details, with solutions presented separately Charged Particle Optics Theory: An Introduction makes an ideal textbook as well as a convenient reference on the theoretical origins of the optics of charged particle beams. It is intended to prepare the reader to understand the large body of published research in this mature field, with the end result translated immediately to practical application.

Permeable Reactive Barrier

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Book Series: Advances in Trace Elements in the Environment ISBN: 9781482224481 Year: Pages: 333 DOI: 10.1201/9781351228886 Language: English
Publisher: Taylor & Francis
Subject: Environmental Sciences --- Environmental Technology
Added to DOAB on : 2020-09-23 00:06:52
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Remediation of groundwater is complex and often challenging. But the cost of pump and treat technology, coupled with the dismal results achieved, has paved the way for newer, better technologies to be developed. Among these techniques is permeable reactive barrier (PRB) technology, which allows groundwater to pass through a buried porous barrier that either captures the contaminants or breaks them down. And although this approach is gaining popularity, there are few references available on the subject. Until now. Permeable Reactive Barrier: Sustainable Groundwater Remediation brings together the information required to plan, design/model, and apply a successful, cost-effective, and sustainable PRB technology. With contributions from pioneers in this area, the book covers state-of-the-art information on PRB technology. It details design criteria, predictive modeling, and application to contaminants beyond petroleum hydrocarbons, including inorganics and radionuclides. The text also examines implementation stages such as the initial feasibility assessment, laboratory treatability studies (including column studies), estimation of PRB design parameters, and development of a long-term monitoring network for the performance evaluation of the barrier. It also outlines the predictive tools required for life cycle analysis and cost/performance assessment. A review of current PRB technology and its applications, this book includes case studies that exemplify the concepts discussed. It helps you determine when to recommend PRB, what information is needed from the site investigation to design it, and what regulatory validation is required.

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