期刊
APPLIED PHYSICS LETTERS
卷 109, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4955462
关键词
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资金
- Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering [DE-FG02-11ER46831]
- U.S. Department of Energy (DOE), Office of Basic Energy Sciences [DE-SC0003678]
- Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy [DE-AC02-05-CH11231]
- Air Force Research Laboratory [FA8650-05-1-5041]
- NSF [0923577, 0421086]
We show that properly engineered amorphous Fe-Gd alloy thin films with perpendicular magnetic anisotropy exhibit bound pairs of like-polarity, opposite helicity skyrmions at room temperature. 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. Published by AIP Publishing.
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