Fig. 2: Anisotropy of the magnetic torques at 2 K.

a H dependence of the magnetic torque, τ, measured at θ = −4°, −2°, 2°, and 4° for T = 2 K. The red and gray inverted triangles indicate occurrence of spin-flops at Hflop and crossing of zero τ value at H1, respectively. b H dependence of τ, measured at θ = 85°, 89°, 91°, and 95° for T = 2 K. The gray inverted triangle designates crossing of zero τ value at H2. c Calculated H dependence of τ, at θ = −4°, −2°, 2°, and 4°. The schematics display angle variation of the magnetic moments upon increasing H at θ = 4°. d Calculated H dependence of τ, for θ = 85°, 89°, 91°, and 95°. The schematics illustrate the angle variation of the magnetic moments upon increasing H at θ = 85°. e Angular variation of the net magnetization as H is increased at θ = 4°. y axis is plotted on logarithmic scale. f Angular variation of the net magnetization as H is increased at θ = 85°.