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Universität Hamburg

Abbildung und Manipulation atomarer Spins

Neue Möglichkeiten für zukünftige Computertechnologie

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Wie die renommierte britische Fachzeitschrift "Nature Nanotechnology" berichtet, hat ein internationales Forscherteam an der Universität Hamburg mit einem Rastertunnelmikroskop eine Kette von Kobaltatomen gebaut und deren magnetische Eigenschaften untersucht. Die spinsensitiven Messungen ("Spins" - magnetische Momente von Elektronen) zeigen überraschenderweise, dass die beobachtete Form der Atome von deren magnetischer Orientierung abhängt - ein Effekt, der von Forschern der Kieler Universität erklärt werden konnte. Diese Arbeit ist die erste weltweit, die Spinsensitivität mit der Technik der Atommanipulation kombiniert, und eröffnet so neue Möglichkeiten, den Magnetismus künstlich hergestellter atomarer Strukturen zu untersuchen.

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