This letter reports systematic measurements of the anisotropic magneto-Seebeck effect (AMSE) of ferromagnetic Ni_100−x Pt _x alloys with different Pt concentration ratios x. By simultaneously measuring an applied temperature difference and generated thermopower at the same positions, the Seebeck coefficient under a magnetic field is quantified with high reliability at the temperatures ranging from 300 to 550K. The AMSE of the alloys is maximized at around x=5at% in the high temperature range and disappears at the temperatures lower than the Curie temperature. The systematic dataset and experimental techniques established here will invigorate spin caloritronics studies.

这封信报告了具有不同 Pt 浓度比x的铁磁 Ni _{100- x} Pt _x合金的各向异性磁塞贝克效应 (AMSE) 的系统测量。通过在相同位置同时测量施加的温差和产生的热电势，可在 300 至 550K 的温度范围内以高可靠性量化磁场下的塞贝克系数。合金的 AMSE在高温范围内在x = 5at%附近最大化，并在低于居里温度的温度下消失。这里建立的系统数据集和实验技术将激发自旋热电子学研究。