Submicrometer Ferromagnetic NOT Gate and Shift Register

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Science  14 Jun 2002:
Vol. 296, Issue 5575, pp. 2003-2006
DOI: 10.1126/science.1070595

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An all-metallic submicrometer device is demonstrated experimentally at room temperature that performs logical NOT operations on magnetic logic signals. When this two-terminal ferromagnetic structure is incorporated into a magnetic feedback loop, the junction performs a frequency division operation on an applied oscillating magnetic field. Up to 11 of these junctions are then directly linked together to create a magnetic shift register.

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