Fig. 2
From: Direct visualization of current-induced spin accumulation in topological insulators
Current induced spin accumulations in Bi2Se3 and Pt. a–e Spatial two-dimensional HDP maps in BS1 under bias currents of 1 (a), 0.8 (b), 0 (c), −0.8 (d), and −1 mA (e). f–j Spatial two-dimensional HDP maps in Pt under bias currents of 6 (f), 3 (g), 0 (h), −3 (i), and −6 mA (j). Black dashed lines indicate the edges of the device. Black arrows show the applied bias current direction
