Search for Superconductivity in the Stress-Induced Ferromagnetic Phase of Sr3Ru2O7

To explore the possibility of the existences of superconductivity and ferromagnetism in Sr₃Ru₂O₇, we have performed resistivity measurements on a single crystalline sample under uniaxial stresses of 0–110 MPa along the c-axis (perpendicular to the conducting RuO₂ plane). In this stress region no superconductivity was so far detected down to at least 160 mK. At the same time an indication of ferromagnetism was not seen clearly in the resistivity, either. Technical difficulties yet to be overcome for further progress are discussed.