Chiral Paramagnetic Skyrmion-like Phase in MnSi
Chiral Paramagnetic Skyrmion-like Phase in MnSi
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DOI：
10.1103/physrevlett.102.197202
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发表时间：
2009-05-15
影响因子：
8.6
通讯作者：
Farago, B.
中科院分区：
文献类型：
--
作者：
Pappas, C.;Lelievre-Berna, E.;Farago, B.
我们通过偏振中子散射和中子自旋回波谱对参考螺旋磁体 MnSi 中的手性涨落进行了全面研究，揭示了完全左手和动态无序相的存在。该相可被识别为自发斯格明子相：它出现在刚好高于螺旋转变 T-C 的有限温度范围内，并与 T-C 处的螺旋相共存。
We present a comprehensive study of chiral fluctuations in the reference helimagnet MnSi by polarized neutron scattering and neutron spin echo spectroscopy, which reveals the existence of a completely left-handed and dynamically disordered phase. This phase may be identified as a spontaneous Skyrmion phase: it appears in a limited temperature range just above the helical transition T-C and coexists with the helical phase at T-C.