Journal
IEEE ELECTRON DEVICE LETTERS
Volume 40, Issue 12, Pages 1984-1987Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LED.2019.2946863
Keywords
Ferrimagnet; skyrmion; reconfigurable logic; electric-field control; parallel computing
Categories
Funding
- National Natural Science Foundation of China [61504006, 61571023]
- Young Elite Scientist Sponsorship Program by China Association for Science and Technology (CAST) [2017QNRC001]
- International Mobility Project [B16001]
- National Key Technology Program of China [2017ZX01032101]
Ask authors/readers for more resources
Compared with skyrmions in ferromagnetic (FM) materials, skyrmions in near-compensated ferrimagnetic (FIM) materials demonstrate higher motion velocity and negligible skyrmion Hall (Sky-Hall) angle. This provides a brighter prospect of skyrmions for computing applications. In this letter, we propose an FIM skyrmion-basedultra-low power electric-field-controlled reconfigurable (SUPER) logic gate. By leveraging electric-field-controlled magnetic anisotropy (EFCMA) effect and skyrmion-skyrmion (Sky-Sky) interaction, varied logic functions, such as AND, OR, XOR, NOT, etc., can be realized. Moreover, artificial fishtail-shaped hollows are introduced for implementing skyrmion divisions. Micromagnetic simulations have been performed to validate the logic operations and divisions. By combining these mechanisms, an ultra-low power parallel computing scheme based on FIM skyrmions is proposed, in which multiple logic operations of two inputs can be carried out in parallel. The influence of the number of logic operations on energy consumption improvement has been investigated.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available