Spintronics, which exploits the spin of an electron as well as its charge, is an exciting new nanodiscipline that has emerged in the last 20 years. However, if viewed critically, spintronics cannot yet be described as having had a revolutionary impact – most of the concepts currently discussed within the research community are about improving the efficiency of existing devices or adding a new element of functionality to a traditional concept. Three-dimensional electronics is one area in which spintronics could truly be revolutionary, by actively enabling the use of the third (that is, vertical) dimension for logic devices.

The experiment described in this work is one of the highest-level demonstrations of logic operation ever performed on data in the magnetic state and brings ultrahigh-density all-magnetic microprocessors based on spintronics closer to becoming a reality.

More information about the research can be found in the journal Nanotechnology (in press).

Further reading

Magnets open the gate to nanoscale logic (June 2002)
Moving beyond silicon CMOS: direct-write fabrication devised for digital logic circuits on individual nanowires (Jun 2010)