Skyrmion dynamics under uniaxial anisotropy

Ehlers Dieter; Stasinopoulos Ioannis; Tsurkan Vladimir; Krug Von Nidda Hans Albrecht; Feher Titusz; Leonov Andrey O.; Kezsmarki Istvan; Grundler Dirk; Loidl Alois

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EHLERS, Dieter, STASINOPOULOS, Ioannis, TSURKAN, Vladimir, KRUG VON NIDDA, Hans Albrecht, FEHER, Titusz, LEONOV, Andrey O., KEZSMARKI, Istvan, GRUNDLER, Dirk, LOIDL, Alois. Skyrmion dynamics under uniaxial anisotropy. In: Physical Review B, 2016, vol. 94, p. 0. ISSN 2469-9950. DOI: https://doi.org/10.1103/PhysRevB.94.014406

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Physical Review B

Volumul 94 / 2016 / ISSN 2469-9950 /ISSNe 2469-9969

Skyrmion dynamics under uniaxial anisotropy

DOI:https://doi.org/10.1103/PhysRevB.94.014406

Pag. 0-0

Ehlers Dieter¹, Stasinopoulos Ioannis², Tsurkan Vladimir¹³, Krug Von Nidda Hans Albrecht¹, Feher Titusz⁴, Leonov Andrey O.⁵, Kezsmarki Istvan⁴, Grundler Dirk², Loidl Alois¹

¹ University of Augsburg,
² Technical University Munich,
³ Institute of Applied Physics, Academy of Sciences of Moldova,
⁴ Budapest University of Technology and Economics, Budapest,
⁵ Leibniz Institute for Solid State and Materials Reseach, Dresden

Disponibil în IBN: 12 august 2022

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Rezumat

Broadband microwave spectroscopy has been performed on single-crystalline GaV4S8, which exhibits a complex magnetic phase diagram including cycloidal and Néel-type skyrmion lattice phases below 13 K. At small magnetic fields two collective modes with large frequency separation are found that reflect the cycloid state subject to a large uniaxial anisotropy. In the skyrmion lattice phase three modes are resolved. Analyzing the spin-precessional motion microscopically, we explain the low frequency of the breathing mode in these Néel skyrmions by the hard-axis orientation of relevant spins.

Cuvinte-cheie
Magnetic Bubbles, magnetism, Domain walls

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