A Platform for Addressing Individual Magnetite Islands Grown Epitaxially on Ru(0001) and Manipulating Their Magnetic Domains

We have grown high-quality magnetite micrometric islandson rutheniumstripes on sapphire through a combination of magnetron sputtering(Ru film), high-temperature molecular beam epitaxy (oxide islands),and optical lithography. The samples have been characterized by atomicforce microscopy, Raman spectroscopy, X-ray absorption and magneticcircular dichroism in a photoemission microscope. The magnetic domainson the magnetite islands can be modified by the application of currentpulses through the Ru stripes in combination with magnetic fields.The modification of the magnetic domains is explained by the Oerstedfield generated by the electrical current flowing through the stripesunderneath the magnetite nanostructures. The fabrication method isapplicable to a wide variety of rock salt and spinel oxides. We have grown high-quality magnetitemicrometric islandson ruthenium stripes on sapphire through a combination of magnetronsputtering (Ru film), high-temperature molecular beam epitaxy (oxideislands), and optical lithography. The magnetic domains on the magnetiteislands can be modified by the application of current pulses throughthe Ru stripes in combination with magnetic fields.

Automated summary

We have grown high-quality magnetite micrometric islandson ruthenium stripes on sapphire through a combination of magnetron sputtering (Ru film), high-temperature molecular beam epitaxy (oxide islands), and optical lithography. The magnetic domains on the magnetite islands can be modified by the application of current pulses through the Ru stripes in combination with magnetic fields.