Fig. 1

Schematic image of the sample geometry. a Diagram of the Corbino-shape device for angular-dependent IMR ρ _ab measurements. The electric current is lead to flow radially from the center to the outermost electrode, where the outermost electrode was in diameter of 80 μm and the detailed sample geometry is given in Supplementary Fig. 2. The magnetic field was applied to the ab-plane with an angular error of less than ±1°. The angle was set to zero (θ = 0) when the field was parallel to one of a(b)-axis. Then the sample was rotated within the ab-plane to tune θ between H and the a(b)-axis. b Diagram of the mesa device for angular-dependent IMR ρ _c measurements, where the thickness of the mesa was 1.5 μm (see sample geometry in Supplementary Fig. 4). The magnetic field was applied within the ab-plane. c Schematic image of the rotating crystal to adjust the angle θ between H and the a(b)-axis as well