English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The switching dynamics of a multiferroic nanomagnetic NAND gate withfan-in/fan-out is simulated by solving the Landau-Lifshitz-Gilbert (LLG)equation while neglecting thermal fluctuation effects. The gate and logic wiresare implemented with dipole-coupled 2-phase (magnetostrictive/piezoelectric)multiferroic elements that are clocked with electrostatic potentials of ~50 mVapplied to the piezoelectric layer generating 10 MPa stress in themagnetostrictive layers for switching. We show that a pipeline bit throughputrate of ~ 0.5 GHz is achievable with proper magnet layout and sinusoidalfour-phase clocking. The gate operation is completed in 2 ns with a latency of4 ns. The total (internal + external) energy dissipated for a single gateoperation at this throughput rate is found to be only ~ 1000 kT in the gate and~3000 kT in the 12-magnet array comprising two input and two output wires forfan-in and fan-out. This makes it respectively 3 and 5 orders of magnitude moreenergy-efficient than complementary-metal-oxide-semiconductor-transistor (CMOS)based and spin-transfer-torque-driven nanomagnet based NAND gates. Finally, weshow that the dissipation in the external clocking circuit can always bereduced asymptotically to zero using increasingly slow adiabatic clocking, suchas by designing the RC time constant to be 3 orders of magnitude smaller thanthe clocking period. However, the internal dissipation in the device mustremain and cannot be eliminated if we want to perform fault-tolerant classicalcomputing.  Keywords: Nanomagnetic logic, multiferroics, straintronics and spintronics,Landau-Lifshitz-Gilbert equation.

Magnetization Dynamics, Throughput and Energy Dissipation in a Universal Multiferroic Nanomagnetic Logic Gate with Fan-in and Fan-out