Micromagnetic Computer Simulated Scaling Effect of S-Shaped Permalloy Nano-Element on Operating Fields for and or or Logic

• Published in: IEEE transactions on magnetics Vol. 48; no. 5; pp. 1851 - 1855
• Main Authors: Abo, Gavin S., Gee, Sung-Hoon, Hong, Yang-Ki, Choi, Byoung-Chul, Donahue, Michael J., Bae, Seok, Jalli, Jeevan, Park, Jihoon, Lee, Jaejin, Park, Mun-Hyoun
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.05.2012; Institute of Electrical and Electronics Engineers
• Subjects: Coercive force; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Magnetic domains; Magnetic hysteresis; Magnetic tunneling; Magnetization; Materials science; Micromagnetic computer simulation; Micromagnetics; Other topics in materials science; Physics; s-shaped element; spin logic; Switches; Nickel base alloys; Permalloy; spin logic; Scaling; s-shaped element; Computerized simulation; Magnetic properties; Micromagnetic computer simulation
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2011.2175743

The scaling effect of permalloy s-shaped element, a rectangular element with appendages, on operating fields, H x and H y , was investigated by micromagnetic computer simulations for and or or logic. The optimized combination of operating fields ( H x , H y ) was found to be (27.7±9.9, -16.7±8.8), (37.9±12.4, -25.9±6.0), and (42.2±8.8, -23.9±4.0) in kA/m for the 100, 50, and 30 nm long s-shaped elements, respectively. As the s-shaped element is scaled down, the allowable deviation from the optimized operating fields becomes smaller and optimized operating fields shift to higher field.