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Entropy-limited topological protection of skyrmions

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Wild, Johannes ; Meier, Thomas N. G. ; Pöllath, Simon ; Kronseder, Matthias ; Bauer, Andreas ; Chacon, Alfonso ; Halder, Marco ; Schowalter, Marco ; Rosenauer, Andreas ; Zweck, Josef ; Müller, Jan ; Rosch, Achim ; Pfleiderer, Christian ; Back, Christian H.
Date of publication of this fulltext: 25 Jan 2018 17:22


Magnetic skyrmions are topologically protected whirls that decay through singular magnetic configurations known as Bloch points. We used Lorentz transmission electron microscopy to infer the energetics associated with the topological decay of magnetic skyrmions far from equilibrium in the chiral magnet Fe1-xCoxSi. We observed that the lifetime tau of the skyrmions depends exponentially on ...


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