Thrusts

THRUST 1:

ADVANCED MATERIALS FOR MAGNON INTERCONNECTS identifies promising magnon materials and how best to excite and visualize magnons

THRUST 2:

ENERGY EFFICIENT MAGNON DETECTION addresses the challenges associated with transducing GHz-THz magnons to electrical signals

THRUST 3:

FUNCTIONALITY IN MAGNON INTERCONNECTS addresses the fundamental limits associated with control of magnon amplitude, propagation path and interference between their excitation and detection

THRUST 1: ADVANCED MATERIALS FOR MAGNON INTERCONNECTS

Thrust 1 Image — Schematic of the release of a membrane from the underlying substrate using a water-soluble buffer layer.

Thrust Co-Leads: Roland Kawakami and Wei-Sheng Lee

Affiliated PIs: Ramesh Budhani, Georgi Dakovski, Michael Flatté, Matthias Hoffmann, Harold Hwang, Wei-Sheng Lee, Elaine Li, Durga Paudyal, Yuri Suzuki, Clare Yu

This thrust develops low magnetic damping thin film materials with tunable magnetization and magnetic anisotropy, characterize and tune magnon band structure across the Brillouin zone, efficiently excite magnons and directly visualize the propagation of GHz to THz magnons with spatial and temporal resolution.

The research is centered around:

The co-design of magnon materials with state-of-the-art properties, including low damping ferrimagnets and antiferromagnets and spin-orbit materials that offer greater tunability.
Development of magnon band structure characterization techniques and calculations and its tuning by external parameters.
Understanding photo-excited response of magnons.

THRUST 2: ENERGY EFFICIENT MAGNON DETECTION

Thrust 2 Image — Schematic of a scanning nitrogen vacancy center microscope.

Thrust Co-Leads: Greg Fuchs and Alex Reid

Affiliated PIs: Ramesh Budhani, Georgi Dakovski, Michael Flatté, Matthias Hoffmann, Harold Hwang, Roland Kawakami, Pedram Khalili, Wei-Sheng Lee, Elaine Li, Durga Paudyal, Dan Ralph, Yuri Suzuki, Clare Yu

This thrust will lay the scientific foundation for high efficiency magnon transport across heterogeneous interfaces and increase efficiency of CMOS compatible magnon detection, spanning ferromagnetic and antiferromagnetic materials and GHz to THz.

The research is centered around:

Spin-orbit materials and interfaces for efficient magnon transduction
Alternative approaches to antiferromagnetic and ferromagnetic magnon detection
Efficient transport across heterogeneous interfaces.
Magnon detection through resonant interactions

THRUST 3: FUNCTIONALITY IN MAGNON INTERCONNECTS

Thrust Co-Leads: Michael Flatté and Dan Ralph

Affiliated PIs: Greg Fuchs, Matthias Hoffmann, Harold Hwang, Roland Kawakami, Pedram Khalili, Elaine Li, Durga Paudyal, Alex Reid, Yuri Suzuki, Clare Yu

This thrust adds functionality to magnon interconnects by exploring the fundamental limits for controlling magnon amplitude, phase, propagation path, and interference.

The research is centered around a co-design approach to:

Enabling and developing magnon switches and modulators
Developing approaches to magnon amplification
Developing magnonic crystals