idw – Informationsdienst Wissenschaft
Nachrichten, Termine, Experten
Nachrichten, Termine, Experten
Abstract: Spintronics strive to harness nanoscale magnetism for information technology and sensing applications. Inherent to this dream is the requirement to couple small nanoscopic magnets to the macro-world via electric leads. Recent advances in scanning tunneling microscopy make it possible to study the interaction between metallic surfaces and magnets even at the extreme scale of individual atoms. We use low-temperature scanning tunneling microscopy to create small magnetic nanostructures of our own design atom by atom. A combination of spin-polarized imaging and fast electronic spectroscopy at GHz speed allows us to measure the nanosecond-fast magnetization dynamics of these nanostructures [1]. I will introduce how quantum magnetic phenomena emerge from the local interaction of the atoms [2] and how the metallic leads can decohere spins [3]. These effects can be harnessed for demonstrations of ultra-dense data storage and non-local measurements of the spin.
[1] S. Loth, M. Etzkorn, C. P. Lutz, D. M. Eigler, A. J. Heinrich, Science 329, 1628 (2010).
[2] S. Yan, D. J. Choi, J. Burgess, S. Rolf-Pissarczyk, S. Loth, Nature Nanotech. 10, 40 (2014).
[3] F. Delgado, S. Loth, M. Zielinski and J. Fernández-Rossier, Europhys. Lett. 109 57001 (2015).
Information on participating / attending:
Das Greifswalder Physikalische Kolloquium wird vom Institut für Physik der Ernst-Moritz-Arndt Universität Greifswald organisiert und gemeinsam mit dem Max-Planck-Institut für Plasmaphysik Greifswald (IPP) und dem Leibniz-Institut für Plasmaforschung und Technologie e. V. (INP) durchgeführt. Das Kolloqiuim findet in der Vorlesungszeit des Semsters jeweils am Donnerstag um 17:00 Uhr im Hörsaal des Institutes für Physik statt.
Die weiteren Kolloquiumstermine des Sommersemesters 2015 finden Sie unter diesem Link.
Einladender: Prof. Dr. Münzenberg
Kontakt: Institut für Physik
Felix-Hausdorff-Straße 6, 17489 Greifswald
Telefon 03834 86-4700, info@physik.uni-greifswald.de
Date:
05/21/2015 17:00 - 05/21/2015 18:00
Event venue:
Hörsaal Physik
Felix-Hausdorff-Straße 6
17489 Greifswald
Mecklenburg-Vorpommern
Germany
Target group:
Scientists and scholars, Students
Relevance:
transregional, national
Subject areas:
Physics / astronomy
Types of events:
Presentation / colloquium / lecture
Entry:
05/12/2015
Sender/author:
Sabine Köditz
Department:
Presse- und Informationsstelle
Event is free:
no
Language of the text:
German
URL of this event: http://idw-online.de/en/event50895
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