Fig. 3: Anisotropic suppression of the giant shot noise by an applied magnetic field and bias. | Nature Communications

Fig. 3: Anisotropic suppression of the giant shot noise by an applied magnetic field and bias.

From: Giant shot noise in superconductor/ferromagnet junctions with orbital-symmetry- controlled spin-orbit coupling

Fig. 3

The measured spin-valve junction V/MgO/Fe/MgO/Fe/Co is the same as in Fig. 1c. a Out-of-plane (OOP) magnetic field effectively suppress the superconductivity and the observed low-bias shot noise. b Magnetic-field dependence of the maximum noise shot shows anisotropy, not only between in-plane (IP) and OOP (black), but also for IP easy (red) and hard (green) axis, which is unexpected for a spin-singlet superconductivity. Inset: anisotropic suppression of Δ for the same directions of applied magnetic field, H (same legend). c Evolution of the Fano factor, F, with applied bias and magnetic fields. The inset: the maximum Fano factor, FMAX, shown for a wide range of IP (red) and OOP (black) applied fields.

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