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A. Chacon
Researcher at Technische Universität München
Publications - 22
Citations - 1443
A. Chacon is an academic researcher from Technische Universität München. The author has contributed to research in topics: Skyrmion & Magnetization. The author has an hindex of 10, co-authored 20 publications receiving 1135 citations. Previous affiliations of A. Chacon include University of Bremen.
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Journal ArticleDOI
Unwinding of a skyrmion lattice by magnetic monopoles.
Peter Milde,Denny Köhler,Jan Seidel,Lukas M. Eng,Andreas Bauer,A. Chacon,J. Kindervater,Sebastian Mühlbauer,Christian Pfleiderer,S. Buhrandt,Christoph Schütte,Achim Rosch +11 more
TL;DR: This study revealed that skyrmions vanish by a coalescence, forming elongated structures, and numerical simulations showed that changes of topology are controlled by singular magnetic point defects.
Journal ArticleDOI
Long-Wavelength Helimagnetic Order and Skyrmion Lattice Phase in Cu 2 OSeO 3
T. Adams,A. Chacon,Martin Wagner,Andreas Bauer,G. Brandl,Bjoern Pedersen,Helmuth Berger,Peter Lemmens,Christian Pfleiderer +8 more
TL;DR: A long-wavelength helimagnetic superstructure in bulk samples of the ferrimagnetic insulator Cu2OSeO3 is reported, providing putative evidence for effective spin currents as the origin of enhancements of the magnetodielectric response instead of atomic displacements considered so far.
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Entropy-limited topological protection of skyrmions.
Johannes Wild,T. N. G. Meier,Simon Pöllath,M. Kronseder,Andreas Bauer,A. Chacon,M. Halder,Marco Schowalter,Andreas Rosenauer,Josef Zweck,Jan Müller,Achim Rosch,Christian Pfleiderer,Christian H. Back +13 more
TL;DR: It is observed that the lifetime τ of the skyrmions depends exponentially on temperature, τ~τ0 exp(ΔEkBT), and the prefactor τ0 of this Arrhenius law changes by more than 30 orders of magnitude for small changes of the magnetic field, reflecting a substantial reduction of the lifetime of skyrnions by entropic effects and, thus, an extreme case of enthalpy-entropy compensation.
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Observation of two independent skyrmion phases in a chiral magnetic material
A. Chacon,Lukas Heinen,M. Halder,Andreas Bauer,W. Simeth,S. Mühlbauer,Helmuth Berger,Markus Garst,Achim Rosch,Christian Pfleiderer +9 more
TL;DR: In this article, a new skyrmion phase was identified in the chiral magnetic material Cu2OSeO3 at low temperature and in the presence of an applied magnetic field.
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Symmetry breaking, slow relaxation dynamics, and topological defects at the field-induced helix reorientation in MnSi
Andreas Bauer,A. Chacon,Matthias Wagner,M. Halder,Robert Georgii,Achim Rosch,Christian Pfleiderer,Markus Garst,Markus Garst +8 more
TL;DR: In this article, the Dzyaloshinskii-Moriya interaction in the cubic chiral magnet MnSi stabilizes a magnetic helix -a periodic one-dimensional modulation of the magnetization.