Chirality, an intrinsic handedness, is one of the most intriguing fundamental phenomena in nature. Materials composed of chiral molecules find broad applications in areas ranging from nonlinear optics and spintronics to biology and pharmaceuticals. However, chirality is usually an invariable inherent property of a given material that cannot be easily changed at will. Here, we demonstrate that ferroelectric nanodots support skyrmions the chirality of which can be controlled and switched. We devise protocols for realizing control and efficient manipulations of the different types of skyrmions. Our findings open the route for controlled chirality with potential applications in ferroelectric-based information technologies.

手性是一种固有的手性，是自然界中最有趣的基本现象之一。由手性分子组成的材料在从非线性光学和自旋电子学到生物学和制药领域的广泛应用。但是，手性通常是给定材料的不变固有特性，不能轻易随意改变。在这里，我们证明了铁电纳米点支持长轴离子，其手性可以控制和切换。我们设计协议，以实现对各种类型的天敌的控制和有效操纵。我们的发现为基于铁电信息技术的潜在手性的可控性开辟了道路。