The Helical Magnet MnSi: Skyrmions and Magnons
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چکیده
منابع مشابه
Lost heat capacity and entropy in the helical magnet MnSi.
The heat capacity of MnSi at B = 0 and B = 4 T was measured in the temperature range 2.5-100 K. To analyze the data, calculations of the phonon spectrum and phonon density of states in MnSi were performed. The calculated phonon frequencies were confirmed by means of inelastic neutron scattering. The analysis of the data suggests the existence of negative contributions to the heat capacity and e...
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T. Weber,1, 2, ∗ J. Waizner,3 G. Tucker,4 R. Georgii,2 M. Kugler,1, 2 A. Bauer,1 C. Pfleiderer,1 M. Garst,5 and P. Böni1 Physik-Department, Technische Universität München (TUM), James-Franck-Str. 1, 85748 Garching, Germany Heinz-Maier-Leibnitz-Zentrum (MLZ), Technische Universität München (TUM), Lichtenbergstr. 1, 85747 Garching, Germany Institut für Theoretische Physik, Universität zu Köln, Zü...
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Skyrmions hold promise for next-generation magnetic storage as their nanoscale dimensions may enable high information storage density and their low threshold for current-driven motion may enable ultra-low energy consumption. Skyrmion-hosting nanowires not only serve as a natural platform for magnetic racetrack memory devices but also stabilize skyrmions. Here we use the topological Hall effect ...
متن کاملComment on "Robust formation of skyrmions and topological Hall effect anomaly in epitaxial thin films of MnSi".
Magnetotransport properties have been investigated for epitaxial thin films of B20-type MnSi grown on Si(111) substrates. Lorentz transmission electron microscopy images clearly point to the robust formation of Skyrmions over a wide temperature-magnetic field region. New features distinct from those reported previously for MnSi are observed for epitaxial films: a shorter (nearly half) period of...
متن کاملRobust metastable skyrmions and their triangular-square lattice structural transition in a high-temperature chiral magnet.
Skyrmions, topologically protected nanometric spin vortices, are being investigated extensively in various magnets. Among them, many structurally chiral cubic magnets host the triangular-lattice skyrmion crystal (SkX) as the thermodynamic equilibrium state. However, this state exists only in a narrow temperature and magnetic-field region just below the magnetic transition temperature Tc, while ...
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ژورنال
عنوان ژورنال: Quantum Beam Science
سال: 2019
ISSN: 2412-382X
DOI: 10.3390/qubs3010004