Electronic properties of FeSe/Fe3O4 bilayers

M. V. ALE CRIVILLERO; N. HABERKORN; G. NIEVA; J.GUIMPEL

Bariloche

Simposio; XXIII Simposio Latinoamericano de Física del Estado Sólido; 2018

In this work, we study the electronic properties of FeSe/Fe3O4 bilayers deposited onto SrTiO3 (100) and MgO (100) substrates byDC magnetron sputtering. The comparative study of Fe3O4 films grown on SrTiO3 and MgO reveals significant differences in theintensity of the Verwey transition (Tv~130K). This allows us to probe the impact of the distortions associated to the Verweytransition on the transport properties of the FeSe over-layer in the FeSe/Fe3O4 bilayers. A correlated increase in the resistance andweakened superconducting properties are observed.