Manipulating the superconducting states of high transition temperature (high-T_c) cuprate superconductors in an efficient and reliable way is of great importance for their applications in next-generation electronics. Here, employing ionic liquid gating, a selective control of volatile and non-volatile superconductivity is achieved in pristine insulating Pr₂CuO_4±δ (PCO) films, based on two distinct mechanisms. Firstly, with positive electric fields, the film can be reversibly switched between superconducting and non-superconducting states, attributed to the carrier doping effect. Secondly, the film becomes more resistive by applying negative bias voltage up to − 4 V, but strikingly, a non-volatile superconductivity is achieved once the gate voltage is removed. Such phenomenon represents a distinctive route of manipulating superconductivity in PCO, resulting from the doping healing of oxygen vacancies in copper-oxygen planes as unravelled by high-resolution scanning transmission electron microscope and in situ X-ray diffraction experiments. The effective manipulation of volatile/non-volatile superconductivity in the same parent cuprate brings more functionalities to superconducting electronics, as well as supplies flexible samples for investigating the nature of quantum phase transitions in high-T_c superconductors.

以高效可靠的方式控制高转变温度（高T _c）铜酸盐超导体的超导状态对于它们在下一代电子产品中的应用非常重要。_{在这里，采用离子液体门控，在原始绝缘 Pr 2} CuO _{4± δ}中实现了挥发性和非挥发性超导性的选择性控制(PCO) 电影，基于两种不同的机制。首先，在正电场下，由于载流子掺杂效应，薄膜可以在超导和非超导状态之间可逆地切换。其次，通过施加高达 − 4 V 的负偏压，薄膜变得更具电阻性，但引人注目的是，一旦去除栅极电压，就会实现非易失性超导性。这种现象代表了在 PCO 中操纵超导性的独特途径，这是由于高分辨率扫描透射电子显微镜和原位揭示了铜 - 氧平面中氧空位的掺杂愈合X射线衍射实验。在同一母体铜酸盐中有效控制挥发性/非挥发性超导性为超导电子学带来了更多功能，并为研究高温超导体中量子相变的性质提供了灵活_的样品。