Magnetic diode in artificial magnetic honeycomb lattice

A method of making a making a magnetic artificial honeycomb lattice, the method comprising depositing a layer of magnetic material on a substrate, wherein:

• the substrate comprises an artificial honeycomb lattice topography, wherein the artificial lattice topography is over a surface area of the substrate that is in a range in a range of about 100 mm2 to about 900 mm2, and wherein the artificial lattice topography comprises a multiplicity of connecting elements separated by hexagonal cylindrical pores, wherein;
• (a) the hexagonal cylindrical pores:
• (i) have widths that are substantially uniform and an average width that is in a range of about 15 nm to about 20 nm;
• (ii) are substantially equispaced and have an average center-to-center distance that is in a range of about 25 nm to about 35 nm;
• and
• (iii) have depths extending inward from the surface of the substrate that are substantially uniform and an average depth that is in a range of about 5 nm to about 10 nm;
• and
• (b) the connecting elements have:
• (i) lengths that are substantially uniform and an average length that is in a range of about 10 nm to about 15 nm;
• (ii) widths that are substantially uniform and an average width that is in a range of about 4 nm to about 8 nm;
• and
• (iii) heights that are substantially uniform corresponding to the depths of the hexagonal cylindrical pores;
• and
• wherein the layer of magnetic material is deposited on substantially only the uppermost surfaces of the connecting elements of the artificial honeycomb lattice topography of the substrate, and wherein the magnetic material layer has a thickness that is substantially uniform and an average thickness that is in a range of about 2 nm to about 8 nm.