Dresden 2006 – wissenschaftliches Programm

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SYMS: Magnetic Switching

SYMS 2: Magnetic Switching II

SYMS 2.2: Hauptvortrag

Montag, 27. März 2006, 17:20–17:50, HSZ 04

Submicrometer ferromagnetic logic gates — •Russell Cowburn — Blackett Physics Laboratory, Imperial College London, Prince Consort Road, London SW7 2BW, UK

Spintronics, in which both the spin and charge of electrons are used for logic and memory operations, promises an alternative route to traditional semiconductor electronics. A complete logic architecture can be constructed that uses planar magnetic wires less than a micrometer in width. Logical NOT, logical AND, signal fan-out and signal cross-over elements each have a simple geometric design and can be integrated together into one circuit. An additional element for data-input allows information to be written to domain wall logic circuits. Working nanocircuits comprising all of these logic elements will be described, as well as a proposal for a new ultrahigh density data storage device based on domain walls circulating in 3-dimensional magnetic networks (Science 309, 1690, 2005).