Figure 4: Temperature dependence of nonlocal signal.
From: Observation of magnon-mediated current drag in Pt/yttrium iron garnet/Pt(Ta) trilayers
(a,c) Angular dependence of the nonlocal signal at different temperatures for GGG/Pt/YIG/Pt and GGG/Pt/YIG/Ta, respectively. During the measurements, Ib was fixed at +2 mA. The curves are vertically shifted for clarity, the black arrows in a and c represent the magnitude scale of 2.80 and 1.98 μV, respectively. Red solid curves in a and c are the fits using equation (1). (b,d) The temperature dependence of the extracted current drag signal (VDrag) and spin Seebeck signal (VSSE) for GGG/Pt/YIG/Pt and GGG/Pt/YIG/Ta, respectively. Red solid curves in b and d are the fits using 
, here, n=2.21 for the GGG/Pt/YIG/Pt device, and n=1.88 for the GGG/Pt/YIG/Ta device.
