Magnetic Domain-Wall Logic
Tóm tắt
“Spintronics,” in which both the spin and charge of electrons are used for logic and memory operations, promises an alternate route to traditional semiconductor electronics. A complete logic architecture can be constructed, which uses planar magnetic wires that are 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 they can be integrated together into one circuit. An additional element for data input allows information to be written to domain-wall logic circuits.
Từ khóa
Tài liệu tham khảo
Z. Navabi Digital Design and Implementation with Field Programmable Devices (Kluwer Academic Publishers Dordrecht Netherlands 2005).
All structures presented here are fabricated from thermally evaporated 5-nm-thick Permalloy films by focused ion beam milling ( 24 ).
The high-sensitivity MOKE magnetometer ( 24 26 ) was used with at least 1 min of signal averaging and a field rotation frequency of 27 Hz. The magnetometer can be used to select regions of complex magnetic nanowire networks for analysis with ∼5 μm spatial resolution.
D. Atkinson, R. P. Cowburn, J. Magn. Magn. Mater.290-291, 165 (2005).
R. Waser, Ed., Nanoelectronics and Information Technology (Wiley VCH, Weinheim, Germany, 2003), p. 330.
This work was supported by Ingenia Holdings Ltd. D.A.A. and D.A. acknowledge the Engineering and Physical Sciences Research Council for Advanced Research Fellowship nos. GR/T02942/01 and GR/S51288/01 respectively. The work and results reported in this publication were obtained with research funding from the European Community under the Sixth Framework Programme Contract Number 510993: MAGLOG. The views expressed are solely those of the authors and the other Contractors and/or the European Community cannot be held liable for any use that may be made of the information contained herein.