Figure 3: Magnetization and spin Seebeck effect in GdIG/Pt hybrids.
From: Origin of the spin Seebeck effect in compensated ferrimagnets
(a) Transverse voltage Vt of sample A plotted versus the applied magnetic field for selected temperatures. The hysteresis loop flips sign twice with decreasing temperature. (b) Temperature-dependent magnetization of sample A recorded at a magnetic field of 0.1 T. (c) Corresponding SSE signal ISSE obtained from the difference in Vt at positive and negative saturation taking the temperature dependence of the Pt resistance R(T) into account. (d,f) Magnetization as a function of temperature of sample B and sample C measured at μ0H=0.1 T and μ0H=2 T, respectively. (e) ISSE signal of sample B. (g) ISSE signal of sample C obtained by recording the transverse voltage Vt as a function of the in-plane orientation of the external magnetic field with constant magnitude of 2 T while applying a heating current Id of 6 mA across the Hall bar. The SSE signal ISSE is then calculated from 
. The blue dashed lines mark the zero-crossing temperatures Tsign1 and Tsign2 of the ISSE signal. The temperatures Tcomp of the magnetic compensation points are indicated by the black dashed lines.
