Synthesizing Skyrmion Molecules in Fe-Gd Thin Films

Autor:	Lee, J. C. T, Chess, J. J., Montoya, S. A., Shi, X., Tamura, N., Mishra, S. K., Fischer, P., McMorran, B. J., Sinha, S. K., Fullerton, E. E., Kevan, S. D., Roy, S.
Rok vydání:	2016
Předmět:	Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
DOI:	10.1063/1.4955462
Popis:	We show that properly engineered amorphous Fe-Gd alloy thin films with perpendicular magnetic anisotropy exhibit room-temperature skyrmion molecules, or a pair of like-polarity, opposite-helicity skyrmions. Magnetic mirror symmetry planes present in the stripe phase, instead of chiral exchange, determine the internal skyrmion structure and the net achirality of the skyrmion phase. Our study shows that stripe domain engineering in amorphous alloy thin films may enable the creation of skyrmion phases with technologically desirable properties. Comment: 15 pages, 6 figures. Accepted for publication in Applied Physics Letters
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1603.07882 Zobrazit plný text záznamu View this record from Arxiv