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arXiv 0706.1841cond-mat.str-el
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螺旋自旋晶体中手征诱导的反常霍尔效应

Chirality induced anomalous-Hall effect in helical spin crystals

B. Binz, A. Vishwanath

摘要:

在压力下,巡游helimagnet MnSi显示出不寻常的磁性。我们以前已经讨论了体心立方螺旋自旋晶体作为一个有前途的起点描述的高压现象。这种状态具有磁化场的拓扑非平凡配置。在这里,我们注意到磁输运的后果,通常从这样的自旋纹理。特别是skyrmion密度诱导的“拓扑”霍尔效应,与不寻常的领域的依赖性,被描述。

英文摘要:

Under pressure, the itinerant helimagnet MnSi displays unusual magnetic properties. We have previously discussed a BCC helical spin crystal as a promising starting point for describing the high pressure phenomenology. This state has topologically nontrivial configurations of the magnetization field. Here we note the consequences for magneto-transport that arise generally from such spin textures. In particular a skyrmion density induced `topological' Hall effect, with unusual field dependence, is described.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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