A negative magnetoresistive effect has been observed for ferromagnet/superconductor/ferromagnet (FSF) microbridges based on diluted ferromagnetic PdFe alloy containing as small as 1% of magnetic atoms. The effect is represented by the sharp negative peak in magnetoresistance at magnetic fields opposite in sign to the initial saturated magnetizations. Microstructuring of the FSF trilayers does not suppress the effect: the most pronounced dips were obtained for the smallest bridges of 6–8 µm wide and 10–15 µm long. The negative magnetoresistance peak was observed at temperatures within the superconducting transition and reaches a noticeable value of up to 1.3% of the normal state resistance.

对于铁磁/超导体/铁磁（FSF）微桥，基于稀释后的铁磁PdFe合金（含低至1％的磁性原子），已观察到负磁阻效应。该效应由在与初始饱和磁化强度相反的磁场处的磁阻的尖锐负峰值表示。FSF三层的微结构不能抑制这种影响：对于宽度为6-8 µm，长度为10-15 µm的最小桥，可以获得最明显的倾角。在超导转变温度范围内观察到负磁阻峰值，并达到高达正常状态电阻的1.3％的显着值。