Shubnikov-de Hass effect across a metamagnetic transition in high quality single crystals of Sr₄Ru₃O₁₀

We performed a detailed electrical transport study at very high magnetic fields and low temperatures in high quality single crystals of Sr ₄Ru₃O₁₀. When the field is applied along the inter-plane direction Shubnikov-de Hass oscillations are observed showing that a metamagnetic transition leads to a quite non-trivial evolution of the geometry of the Fermi surface. It can be ascribed either that localized and itinerant bands coexist in this system, the former leading to the ferromagnetic response and the latter to itinerant metamagnetic behavior, or that itinerant metamagnetism emerges from a Stoner-like ferromagnetic ground state.