Au and Ag are known to be metallic and none of them have shown independently superconductivity. Here we show superconductivity in Ag implanted Au thin films. Ag implanted Au films of different thicknesses have been studied using four probe resistance versus temperature measurements. We have also measured the pristine samples (i.e. without any implantation) to compare the transport properties. The superconducting transition occurs around ~2 K (T_C) for Ag implanted 20 nm Au film (the lowest resistance observed below T_C is ~10⁻⁶ Ohm). Change of T_c towards lower temperatures has been observed under the effect of increasing current and magnetic field which endorses the superconducting state. Further the V ~ I measurements were carried out to verify the superconducting nature. We have estimated the coherence length to be about 10 nm. On the other hand, the pristine samples clearly did not exhibit superconductivity down to 1.6 K. Our results open an avenue for further exploring this type of novel superconductivity for future applications.

已知Au和Ag是金属的，并且它们都没有独立显示出超导性。在这里，我们显示了在Ag注入的Au薄膜中的超导性。已经使用四个探针电阻对温度的测量方法研究了不同厚度的银植入金膜。我们还测量了原始样品（即未植入任何样品）以比较运输性能。对于Ag注入的20 nm Au薄膜，超导转变发生在〜2 K（T _C）附近（在T _C以下观察到的最低电阻为〜10 ^-6 Ohm）。T _c的变化在增加电流和磁场的作用下已经观察到朝向较低温度的转变，这认可了超导状态。此外，该V  〜 我测量进行了验证超导性质。我们估计相干长度约为10 nm。另一方面，原始样品显然没有表现出低至1.6 K的超导性。我们的结果为进一步探索此类新型超导性开辟了途径，以供将来应用。