We present electrical-resistivity measurements on the prototypical heavy-fermion ferromagnet ${\mathrm{UGe}}_2$ under pulsed magnetic field up to 60 T. An anisotropic field-induced suppression of the electronic correlations is revealed. The electrical resistivity strongly decreases when a magnetic field $\mathbf{H}$ is applied along the easy magnetic axis $\mathbf{a}$, while it remains almost unchanged when $\mathbf{H}$ is applied along the hard magnetic axes $\mathbf{b}$ and $\mathbf{c}$. The field-induced destabilization of the ferromagnetic state is also anisotropic: the anomaly at the Curie temperature $T_C$ disappears in fields higher than $\gtrsim 1\mathrm{T}$ for $\mathbf{H}\parallel \mathbf{a}$ and in fields higher than $\gtrsim 20\mathrm{T}$ for $\mathbf{H}\parallel \mathbf{b},\mathbf{c}$. At temperatures below 2 K, we observe quantum oscillations in fields larger than 50 T applied along $\mathbf{b}$, which support the presence of a two-dimensional Fermi surface similar to that previously observed at low fields.

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• Ferromagnetism
• High magnetic fields
• Magnetic anisotropy
• Heavy-fermion systems
• Unconventional superconductors
• Resistivity measurements
• Shubnikov-de Haas effect