Magnetic skyrmions are exciting candidates for energy-efficient computing due to their nonvolatility, detectability, and mobility. A recent proposal within the paradigm of reversible computing enables large-scale circuits composed of directly cascaded skyrmion logic gates, but it is limited by the manufacturing difficulty and energy costs associated with the use of notches for skyrmion synchronization. To overcome these challenges, we, therefore, propose a skyrmion logic synchronized via modulation of voltage-controlled magnetic anisotropy (VCMA). In addition to demonstrating the principle of VCMA synchronization through micromagnetic simulations, we also quantify the impacts of current density, skyrmion velocity, and anisotropy barrier height on skyrmion motion. Further micromagnetic results demonstrate the feasibility of cascaded logic circuits in which VCMA synchronizers enable clocking and pipelining, illustrating a feasible pathway toward energy-efficient large-scale computing systems based on magnetic skyrmions.
Skip Nav Destination
Article navigation
10 May 2021
Research Article|
May 13 2021
Skyrmion logic clocked via voltage-controlled magnetic anisotropy
Special Collection:
Mesoscopic Magnetic Systems: From Fundamental Properties to Devices
Benjamin W. Walker
;
Benjamin W. Walker
1
Department of Electrical and Computer Engineering, The University of Texas at Dallas
, Richardson, Texas 75080, USA
Search for other works by this author on:
Can Cui
;
Can Cui
2
Department of Electrical and Computer Engineering, The University of Texas at Austin
, Austin, Texas 78712, USA
Search for other works by this author on:
Felipe Garcia-Sanchez
;
Felipe Garcia-Sanchez
3
Departamento de Física Aplicada, Universidad de Salamanca
, 37008 Salamanca, Spain
Search for other works by this author on:
Jean Anne C. Incorvia
;
Jean Anne C. Incorvia
2
Department of Electrical and Computer Engineering, The University of Texas at Austin
, Austin, Texas 78712, USA
Search for other works by this author on:
Xuan Hu
;
Xuan Hu
a)
1
Department of Electrical and Computer Engineering, The University of Texas at Dallas
, Richardson, Texas 75080, USA
a)Author to whom correspondence should be addressed: xuan.hu@utdallas.edu
Search for other works by this author on:
Joseph S. Friedman
Joseph S. Friedman
1
Department of Electrical and Computer Engineering, The University of Texas at Dallas
, Richardson, Texas 75080, USA
Search for other works by this author on:
a)Author to whom correspondence should be addressed: xuan.hu@utdallas.edu
Note: This paper is part of the APL Special Collection on Mesoscopic Magnetic Systems: From Fundamental Properties to Devices.
Appl. Phys. Lett. 118, 192404 (2021)
Article history
Received:
February 28 2021
Accepted:
April 26 2021
Citation
Benjamin W. Walker, Can Cui, Felipe Garcia-Sanchez, Jean Anne C. Incorvia, Xuan Hu, Joseph S. Friedman; Skyrmion logic clocked via voltage-controlled magnetic anisotropy. Appl. Phys. Lett. 10 May 2021; 118 (19): 192404. https://doi.org/10.1063/5.0049024
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Pay-Per-View Access
$40.00
Citing articles via
Topological and chiral matter—Physics and applications
Maia G. Vergniory, Takeshi Kondo, et al.
Roadmap on photonic metasurfaces
Sebastian A. Schulz, Rupert. F. Oulton, et al.
Feedback cooling of an insulating high-Q diamagnetically levitated plate
S. Tian, K. Jadeja, et al.
Related Content
Antiferromagnetic skyrmion-based logic gates controlled by electric currents and fields
Appl. Phys. Lett. (August 2021)
Reconfigurable and reusable skyrmion logic gates with circular track
AIP Advances (February 2023)
Clockless skyrmion logic gate based on voltage-controlled skyrmion propagation
Appl. Phys. Lett. (October 2022)
Skyrmion-based multi-channel racetrack
Appl. Phys. Lett. (November 2017)
Role of voltage-controlled magnetic anisotropy in the recent development of magnonics and spintronics
J. Appl. Phys. (October 2024)