Multifunctional Spin Logic Operations in Graphene Spin Circuits
Journal article, 2022

Spin-based computing, combining logic and nonvolatile magnetic memory, is promising for emerg-ing information technologies. However, the realization of a universal spin logic operation, representing a reconfigurable building block with all-electrical spin-current communication, has so far remained chal-lenging. Here, we experimentally demonstrate reprogrammable all-electrical multifunctional spin logic operations in a nanoelectronic device architecture, utilizing graphene buses for spin communication and mixing and nanomagnets for writing and reading information at room temperature. This device realizes a multistate spin-majority logic operation, which is reconfigured to achieve (N)AND, (N)OR, and XNOR Boolean operations, depending on the magnetization of inputs. The results are in good agreement with the predictions from a spin-circuit model, providing an experimental demonstration of a spin-based logic unit that takes advantage of the vector nature of spin, as opposed to conventional scalar charge-based devices. These spin logic operations in large-area graphene are fully compatible with industrial fabrication pro-cesses and represent a promising platform for scalable all-electric spin-based logic-in-memory computing architecture.

Author

Dmitrii Khokhriakov

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

2D-Tech

Shehrin Sayed

University of California at Berkeley

Anamul Md Hoque

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

2D-Tech

Bogdan Karpiak

2D-Tech

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Bing Zhao

2D-Tech

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Supriyo Datta

Purdue University

Saroj Prasad Dash

2D-Tech

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Graphene Centre at Chalmers

Physical Review Applied

2331-7019 (eISSN)

Vol. 18 6 064063

Spintronics with Topological Quantum Material and Magnetic Heterostructures

Swedish Research Council (VR) (2021-04821), 2022-01-01 -- 2025-12-31.

2Dimensional van der Waals Spin-Orbit Torque Technology

Swedish Research Council (VR) (2021-05925), 2021-12-01 -- 2024-11-30.

2D material-based technology for industrial applications (2D-TECH)

GKN Aerospace Sweden (2D-tech), 2021-01-01 -- 2024-12-31.

VINNOVA (2019-00068), 2020-05-01 -- 2024-12-31.

Graphene Core Project 3 (Graphene Flagship)

European Commission (EC) (EC/H2020/881603), 2020-04-01 -- 2023-03-31.

Areas of Advance

Nanoscience and Nanotechnology

Materials Science

Subject Categories

Other Physics Topics

Other Electrical Engineering, Electronic Engineering, Information Engineering

Condensed Matter Physics

Infrastructure

Nanofabrication Laboratory

DOI

10.1103/PhysRevApplied.18.064063

More information

Latest update

2/12/2024