Critical sample aspect ratio and magnetic field dependence for antiskyrmion formation in Mn1.4PtSn single crystals
Cespedes BEZ, Vir P, Milde P, Felser C, Eng LM (2021)
Publication Type: Journal article
Publication year: 2021
Journal
Book Volume: 103
Article Number: 184411
Journal Issue: 18
DOI: 10.1103/PhysRevB.103.184411
Abstract
Mn1.4PtSn is the first material in which antiskyrmions have been observed in ultrathin single-crystalline specimens. While bulk crystals exhibit fractal patterns of purely ferromagnetic domain ordering at room temperature, ultrathin Mn1.4PtSn lamellae clearly show antiskyrmion lattices with lattice spacings up to several μm. In the paper presented here, we systematically investigate the thickness region from 400 nm to 10 μm using 100×100μm2 wide Mn1.4PtSn plates, and identify the critical thickness-to-width aspect ratio α0=0.044 for the ferromagnetic fractal domain to the noncollinear texture phase transition. Additionally, we also explore these noncollinear magnetic textures below the critical aspect ratio α0 above and below the spin-reorientation transition temperature TSR while applying variable external magnetic fields. What we find is a strong hysteresis for the occurrence of an antiskyrmion lattice, since the antiskyrmions preferentially nucleate by pinching them off from helical stripes in the transition to the field polarized state.
Involved external institutions
Technische Universität Dresden
Germany (DE)
Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids
Germany (DE)
Germany (DE)
Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids
Germany (DE)
How to cite
APA:
Cespedes, B.E.Z., Vir, P., Milde, P., Felser, C., & Eng, L.M. (2021). Critical sample aspect ratio and magnetic field dependence for antiskyrmion formation in Mn1.4PtSn single crystals. Physical Review B, 103(18). https://doi.org/10.1103/PhysRevB.103.184411
MLA:
Cespedes, B. E. Zuniga, et al. "Critical sample aspect ratio and magnetic field dependence for antiskyrmion formation in Mn1.4PtSn single crystals." Physical Review B 103.18 (2021).
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