We report the influence of magnetic NiFe artificial spin ice (ASI) on the transport properties of superconducting Nb thin film. Resistivity (ρ) as a function of temperature (T ~ 1.8 to 300 K) and magnetic field (B ~ 0 to 40 kOe in parallel and perpendicular orientations with respect to the film plane) has been examined for two samples, a plain Nb thin film and a hybrid thin film of NiFe-ASI and Nb (Nb-NiFe). The impact of the magnetic NiFe-ASI on superconducting Nb is clearly visible in the transport properties, where, in comparison with plain Nb, for the Nb-NiFe hybrid thin film: (1) the normal state resistivity increases by a factor ~ 1.5; (2) the superconducting transition temperature (T_c) at B = 0 reduces from 7.31 to 6.51 K; (3) the surface sheath superconductivity vanishes as reflected by the parallel upper critical field, B_c2(T); and (4) the perpendicular B_c2(T) is suppressed in the entire T range. Interestingly, with the applied field, \( {T}_{\mathrm{c}}^{\mathrm{Nb}}-{T}_{\mathrm{c}}^{\mathrm{Nb}-\mathrm{NiFe}} \)|_B increases in perpendicular and decreases in parallel field orientation. The magnetoresistance measurements near T_c for our Nb-NiFe hybrid thin film show shallow minima revealing matching pinning effects with respect to the ASI square lattice. The results are understood in terms of the thin film nature of our samples, geometrically frustrated magnetism of ASI and the proximity between the magnetic NiFe-ASI and superconducting Nb at the interface.

我们报道了磁性NiFe人造自旋冰（ASI）对超导Nb薄膜的传输性能的影响。电阻率（ρ）作为温度的函数（Ť〜1.8〜300 K）和磁场（乙〜0〜40千奥斯特在平行和垂直方向相对于膜平面）已审查了两个样品，一个普通的Nb薄膜膜和NiFe-ASI和Nb（Nb-NiFe）的混合薄膜。磁性NiFe-ASI对超导Nb的影响在传输特性中清晰可见，与纯Nb相比，Nb-NiFe杂化薄膜的特性为：（1）常态电阻率提高约1.5倍；（2）B处的超导转变温度（T _c） = 0从7.31减少到6.51 K; （3）平行的上临界场B _c2（T）反映出表面皮层超导性消失；（4）在整个T范围内，垂直B _c2（T）被抑制。有趣的是，在应用字段中，\（{T} _ {\ mathrm {c}} ^ {\ mathrm {Nb}}-{T} _ {\ mathrm {c}} ^^ {\ mathrm {Nb}-\ mathrm {NiFe}} \） | _B在垂直方向上增加而在平行磁场方向上减少。T _c附近的磁阻测量对于我们的Nb-NiFe杂化薄膜，显示出极小的浅度，揭示了相对于ASI方格的匹配钉扎效应。可以从我们的样品的薄膜性质，ASI的几何受阻磁性以及界面处的磁性NiFe-ASI和超导Nb之间的接近性来理解结果。