Magnetic graphene
AssigneeThe Government of the United States of America, as represented by the Secretary of the Navy
InventorsWoo K. Lee, Keith E. Whitener, Paul E. Sheehan
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Abstract
A patterned magnetic graphene made from the steps of transferring or growing a graphene film on a substrate, functionalizing the graphene film, hydrogenating the graphene film and forming fully hydrogenated graphene, manipulating the extent of the hydrogen content by using an electron beam from a scanning electron microscope to selectively remove hydrogen, wherein the step of selectively removing hydrogen occurs under a vacuum, and forming areas of magnetic graphene and non-magnetic graphene. A ferromagnetic graphene film comprising film that has a thickness of less than two atom layers thick.
Claims8
A patterned magnetic graphene made from the steps of:
- transferring or growing a graphene film on a substrate;
- functionalizing the graphene film;
- hydrogenating the graphene film and forming fully hydrogenated graphene;
- manipulating the extent of the hydrogen content by using an electron beam from a scanning electron microscope to selectively remove hydrogen, wherein the step of selectively removing hydrogen occurs under a vacuum;
- and
- forming areas of magnetic graphene and non-magnetic graphene.
A uniform ferromagnetic graphene film comprising film that has a thickness of less than two atom layers thick wherein the graphene film is patterned by locally controlling the extent of hydrogenation and wherein the pattern is achieved by an electron beam.
Dependencies are inferred from the claim text.