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Spontaneous magnetic bubbles and large topological Hall effect in Mn3-xFexSn compound
Scripta Materialia ( IF 6 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.scriptamat.2020.06.034 Jun Liu , Shulan Zuo , Hang Li , Yanli Liu , Xinqi Zheng , Ying Zhang , Tongyun Zhao , Fengxia Hu , Jirong Sun , Baogen Shen
Scripta Materialia ( IF 6 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.scriptamat.2020.06.034 Jun Liu , Shulan Zuo , Hang Li , Yanli Liu , Xinqi Zheng , Ying Zhang , Tongyun Zhao , Fengxia Hu , Jirong Sun , Baogen Shen
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Abstract Magnetic and transport properties as well as magnetic domain structures have been investigated in a hexagonal polycrystalline Mn2.1Fe0.9Sn compound. The in-situ observation of Lorentz transmission electron microscopy shows that spontaneous magnetic bubbles owing a pair of Bloch lines and biskyrmions consisting of two skyrmions of opposite spin helicities coexist in this compound at low temperature. A large topological Hall resistivity up to about 9 µΩ·cm at 50 K has been found owing to the formation of noncoplanar spin textures deriving from the competition among magnetocrystalline anisotropy, antiferromagnetic coupling, and ferromagnetic interaction.
更新日期：2020-10-01
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