Physics-Based Models for Magneto-Electric Spin-Orbit Logic Circuits
oleh: Hai Li, Dmitri E. Nikonov, Chia-Ching Lin, Kerem Camsari, Yu-Ching Liao, Chia-Sheng Hsu, Azad Naeemi, Ian A. Young
| Format: | Article |
|---|---|
| Diterbitkan: | IEEE 2022-01-01 |
Deskripsi
Spintronic devices provide a promising beyond-complementary metal-oxide-semiconductor (CMOS) device option, thanks to their energy efficiency and compatibility with CMOS. To accurately capture their multiphysics dynamics, a rigorous treatment of both spin and charge and their inter-conversion is required. Here, we present physics-based device models based on <inline-formula> <tex-math notation="LaTeX">$4\times4$ </tex-math></inline-formula> matrices for the spin-orbit coupling (SOC) part of the magneto-electric spin-orbit (MESO) device. Also, a more rigorous physics model of ferroelectric and magnetoelectric (ME) switching of ferromagnets, based on Landau–Lifshitz–Gilbert (LLG) and Landau–Khalatnikov (LK) equations, are presented. With the combined model implemented in a SPICE circuit simulator environment, simulation results were obtained which show feasibility of the MESO implementation and the functional operation of buffers, synchronous oscillators, and majority gates.