The heavy fermion superconductor $\mathrm{U}{\mathrm{Ru}}_2{\mathrm{Si}}_2$ is a candidate for chiral, time-reversal symmetry-breaking superconductivity with a nodal gap structure. Here, we microscopically visualized superconductivity and spatially inhomogeneous ferromagnetism in $\mathrm{U}{\mathrm{Ru}}_2{\mathrm{Si}}_2$. We observed linear-$T$ superfluid density, consistent with $d$-wave pairing symmetries including chiral $d$ wave, but did not observe the spontaneous magnetization expected for chiral $d$ wave. Local vortex pinning potentials had either four- or twofold rotational symmetries with various orientations at different locations. Taken together, these data support a nodal gap structure in $\mathrm{U}{\mathrm{Ru}}_2{\mathrm{Si}}_2$ and suggest that chirality either is not present or does not lead to detectable spontaneous magnetization.

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• Flux pinning
• Multiband superconductivity
• Penetration depth
• Superconductivity
• d-wave
• Heavy-fermion systems
• Unconventional superconductors
• Scanning probe microscopy