The magnetization in a chiral ferromagnetic fluid can be twisted and linked to form a stable three-dimensional topological soliton known as a hopfion.

中文翻译：

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手性铁磁流体：让我们再次扭转

手性铁磁流体中的磁化强度可以扭曲并链接起来，形成一个稳定的三维拓扑孤子，称为孤子。