Two-dimensional electron gas systems (2DEGs) generated at the oxide interfaces that exhibit rich physics phenomena opened up an era for oxide-based electronics, photonics, and spintronics. The recent discovery of superconductivity plus the strong spin-orbital coupling naturally existing in the 2DEGs of KTaO₃ (KTO) made KTO an exciting platform for the interplay of the electronic and spin degrees of freedom to create exotic physical properties. By directly placing KTO’s 2DEGs next to another strongly-correlated oxide with nontrivial topological nodes, we reveal the anomalous effects which were induced by the topological states in the electronic transport properties of the KTO’s 2DGEs, due to the electronic reconstruction caused by the proximity effect. This adds an additional prospect to the functions of KTO heterostructures.

在氧化物界面产生的二维电子气系统 (2DEGs) 展现出丰富的物理现象，为基于氧化物的电子学、光子学和自旋电子学开辟了新纪元。_{最近发现的超导性加上自然存在于 KTaO 3}的 2DEGs 中的强自旋轨道耦合(KTO) 使 KTO 成为电子和自旋自由度相互作用以创造奇异物理特性的令人兴奋的平台。通过将 KTO 的 2DEGs 直接放置在另一个具有非平凡拓扑节点的强相关氧化物旁边，我们揭示了由于邻近效应引起的电子重构，KTO 的 2DGEs 的电子传输特性中拓扑状态引起的异常效应。这为 KTO 异质结构的功能增加了额外的前景。