High Pressure Magnetization Studies of the Triple-Layer Ruthenate Perovskite, Sr4Ru3O10

Intrinsic to the ruthenates family is large number of compelling collective instabilities, including unconventional superconductivity, itinerant and localized moments magnetism, zero-field and magnetic-field-induced metal-insulator transitions. Our magnetic susceptibility measurements on recently-synthesized single crystals of Sr4Ru3O10 have revealed that an applied hydrostatic (helium-gas) pressure dramatically changes the balance between the competing antiferromagnetic and ferromagnetic states in this metallic triple-layered perovskite. The results are discussed together with the most recent pressure data on the structure - electronic properties correlations in closely related ruthenate perovskites, a bi-layer metallic compound Sr3Ru2O7 and a bi-layer metal-insulator system Ca3Ru2O7.