Abstract
The propagation of flat domains in soft ferromagnetic thin films with uniaxial anisotropy has been utilized in the past to implement low-cost nonvolatile shift register memories. However the low density of storage, the poor quality of the films, and the complexity of the structure have overwhelmed the inherent low material cost and simple manufacturing tooling. As a result, the devices have not been competitive. A novel, very simplified structure using chemically deposited soft and hard exchange-coupled thin films is described. Localized magnetostatic fields are created through rectangular wide regions of the propagation channels in order to permit the storage of very small domains and the control of the domain propagation when the shift conductors are current pulsed. Experimental work on a 104 kbits/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> density register geometry is reported, and the improvements necessary to reach higher densities are discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
