Hybrid Sensing of Electric Field with Quantum Spin Defects Coupled to Nanomagnets

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Researchers at Purdue University have developed a new method for hybrid sensing of electric fields using quantum spin defects (QSD). Currently, electric sensing for small electric field sensitivity (about 1000 V cm^-1) are possible, but dynamic range remains uncertain. The new highly sensitive technique created by Purdue researchers can detect small changes in electric fields by optimizing coupling excitations in nanomagnets with QSD, including those of nitrogen-vacancy centers found in nanodiamonds offering measurable signals that orders of magnitude higher in resolution. This can be implemented in quantum spintronics devices, single spin probes of multiferroic order, and NV-sensing of electric fields.

-Enhanced Dynamic Range
-Improved Electric Field Sensing
-Highly Sensitive

Potential Applications:
-Quantum Spintronics
-Nitrogen-Vacancy Sensing of Electric Fields
-Single Spin Probes of Multiferroic Order

Technology Validation: The ferroelectric polarization changes nitrogen-vacancy spin relaxation rates by 400%, improving the patterning of the ferromagnetics by three orders of magnitude.

Recent Publication:

"Quantum-Classical Spin Hybrids: Leveraging Spintronic Tools for Information Processing Applications"

SPIE Nanoscience + Engineering

​DOI: 10.1117/12.2567795
Nov 30, 2021
Utility-Gov. Funding
United States

Nov 30, 2020
Provisional-Gov. Funding
United States
Purdue Office of Technology Commercialization
The Convergence Center
101 Foundry Drive, Suite 2500
West Lafayette, IN 47906

Phone: (765) 588-3475
Fax: (765) 463-3486
Email: otcip@prf.org