Computing Devices Based on Nanoscale Oscillators

• Applicant: Professor Dr.-Ing. Markus Becherer, since 6/2017
• Subject Area: Electronic Semiconductors, Components and Circuits, Integrated Systems, Sensor Technology, Theoretical Electrical Engineering
• Term: from 2014 to 2017
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 258294085

Magnetic field-coupling is an emerging, new paradigm of nanoscale computing, where information is propagated and processed by the magnetic interaction of single-domain magnetic particles. The feasibility of this concept has been recently demonstrated experimentally by a magnetic majority gate. We have shown theoretically that magnetic field-coupled circuits can achieve fast and densely integrated computing which dissipates only few kT power per switching. Through parallel computing, the computing speed can be improved to an acceptable level in special-purpose applications, such as systolic architecture. We believe that exploiting magnetization dynamics besides static magnetization states opens a wealth of opportunities to do computation. For this reason we are going to explore the computing potential of dynamic magnetic systems.We plan to explore the possibility of using magnetic oscillating systems based on nanomagnets to achieve non-Boolean computing scheme. As is known, due to the micromagnetic dynamics, a nanomagnet behaves as one oscillator and nanomagnet arrays have the performance of interconnected oscillators. The goal of this proposal is to study how massive arrays of interconnected nanoscale oscillators and spin waves can realize computing systems. Moreover, rather than studying abstract oscillator models, we choose to model realistic nanosystems such as spin waves and spin-torque oscillators. This work will potentially lay the foundation to the design of novel, oscillatory computing devices, which are built from networks of nanoscale magnetic oscillators

• DFG Programme: Research Grants
• Ehemaliger Antragsteller: Professor Dr. Paolo Lugli, until 6/2017