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Tutorial EM02—Magnetic and Magnetoelectric Materials for Memory and Sensing Applications

Nov 26, 2017
12:30 PM - 04:00 PM
Hynes, Level 2, Room 206

We will present a tutorial that develops systematic materials requirements for spin logic. The tutorial addresses the evolution of spin logic and materials requirements for beyond CMOS. We will cover spin torque logic and magnetoelectric spin orbit logic, which are two specific examples of spin logic for beyond CMOS applications. Beyond CMOS logic requires low switching energy, scalable interconnect and low error rates to enable computation.

1:30 pm – 3:00 pm
Part I: Sasikanth Manipatruni
Materials Scaling Requirements for Spintronic Logic

As nanoelectronics enters the era of 10–20 nm feature sizes, new opportunities arise for the introduction of novel state variables, spin, strain and polarization of materials. We address these three attributes for spin logic (a) Spin torque logic (b) Magnetoelectric spin orbit (MESO) logic. For spin torque logic, we cover the material requirements for interconnect and magnetic materials (Phys. Rev. Appl. 5, 014002). For magnetoelectric spin orbit logic, we cover the materials requirements for multi-ferroics, magneto-electrics, interconnect and the ferro-magnetic nodes (arXiv:1512.05428).

3:00 pm – 3:30 pm   BREAK

3:30 pm – 5:00 pm
Part II: Jeffrey McCord
Magnetic Domain Imaging of Magnetoelectric Sensor Materials and Devices

A general introduction to the various aspects of magnetic domain formation in magnetic materials with a special emphasis on the formation of magnetic domains in magnetic thin films and thin film devices. Magnetic domain imaging methods will be introduced and the complementary and discriminating features of the different magnetic domain imaging methods will be discussed. A special emphasis will be on magneto-optical microscopy. The possibilities of magneto-optical Faraday-, Kerr- and Voigt effect microscopy for the investigation of magnetic materials on different length- and timescales will be demonstrated with illustrative examples, thereby demonstrating the capacity of this analysis method. Then, the role and relevance of magnetic domains and domain walls for the performance in magnetoelectric composites will be explored using various examples of advanced magneto-optical microscopy.

Instructors

  • Sasikanth Manipatruni, Intel Corporation
  • Jeffrey McCord, Kiel University