Nanomagnetic Device Development

Advancing nanoscale magnetic devices for neuromorphic computing and sensing applications by combining precision fabrication, time-resolved microscopy, and multi-physics modelling. Our work bridges fundamental spin dynamics with practical hardware implementations.

Neuromorphic HardwareSpintronic Devices2019-Present

Research Overview

We design and characterize nanomagnetic devices that leverage spintronic phenomena for energy-efficient information processing. By tailoring magnetic anisotropy and coupling at the nanoscale, we create devices capable of analog computation, pattern recognition, and signal transduction.

Our laboratory integrates advanced thin-film deposition, electron-beam lithography, and focused ion-beam modification to engineer magnetic tunnel junctions (MTJs) and hybrid magnonic architectures. Time-resolved magneto-optical Kerr effect (TR-MOKE) microscopy and microwave spectroscopy provide deep insight into device dynamics.

These efforts deliver application-ready building blocks for neuromorphic accelerators and reconfigurable RF front-ends, while establishing best practices for robust spintronic integration with CMOS platforms.

Key Achievements

  • Spintronic Neuromorphic Networks

    Demonstrated reservoir computing prototypes using coupled spin-wave conduits and MTJs for ultra-low-power signal processing.

  • Materials-First Characterization

    Established a measurement pipeline that combines TR-MOKE, BLS, and electrical probing to correlate nanoscale material properties with device-level performance metrics.

  • Radiation-Hard Magnetic Sensors

    Engineered magnetic field sensors that maintain accuracy after ion irradiation, enabling deployment in aerospace and quantum instrumentation environments.

  • Hybrid Magnonic-Electronic Links

    Integrated spin-wave buses with CMOS-compatible readout to create multi-modal interconnects for adaptive systems-on-chip.

Technical Approach

Magnetic Tunnel Junctions

Fabricating MTJ stacks with engineered free layers and synthetic antiferromagnets to achieve tunable oscillation frequencies and robust readout contrast.

Time-Resolved Microscopy

Utilizing TR-MOKE and scanning NV magnetometry for picosecond-to-nanosecond visualization of magnetization dynamics in operational devices.

Co-Design & Simulation

Performing micromagnetic simulations and compact modelling to co-optimize device geometry, material stacks, and neuromorphic workloads.

Application Areas

Neuromorphic Accelerators

Implementing spiking neuron primitives, synaptic weighting, and reservoir dynamics directly in hardware for real-time inference at microwatt power budgets.

Adaptive RF Front-Ends

Deploying tunable magnonic filters and phase shifters that respond dynamically to mission constraints in communication payloads.

Precision Sensing

Leveraging magnetic nano-oscillators and Hall sensors for high-bandwidth detection of minute magnetic signatures in biomedical and navigation contexts.

Related Publications

Spin‐Wave Optics in YIG Realized by Ion‐Beam Irradiation

Small38 citations

This work demonstrates focused-ion-beam (FIB) writing as a maskless technique for spin-wave optical devices, showing magnonic versions of lenses, gratings, and Fourier-domain processors.

spin wavesYIGion beam irradiationmagnonics
First Author

Neuromorphic Computing with Spin-Wave Devices

IEEE Transactions on Magnetics24 citations

Exploration of spin-wave devices for neuromorphic computing applications.

neuromorphic computingspin wavesmagnonic devices

Future Directions

On-Chip Learning

Embedding learning algorithms directly into nanomagnetic networks to enable autonomous sensor calibration and adaptive control.

3D Spintronic Integration

Stacking magnetic devices across multiple layers for volumetric computing and enhanced connectivity.

Radiation-Qualified Platforms

Qualifying nanomagnetic sensors and logic for extreme environments spanning space missions to nuclear facilities.

Hybrid Quantum Interfaces

Coupling spintronic elements with superconducting qubits and photonic links for multi-physics quantum systems.