Ferromagnetic particles as ultra-sensitive non-linear response labels for magnetic particles imaging (MPI) and sensing applications
Patent
·
OSTI ID:2222327
A significant enhancement of detection capabilities of the room temperature MPQ is seen using optical lithography-defined, ferromagnetic iron-nickel alloy microdisks. Irreversible transitions between strongly non-collinear (vortex) and a collinear single domain states, driven by an ac magnetic field, translate into a nonlinear magnetic response that enables ultrasensitive detection of material at relatively small magnetic fields.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-06CH11357
- Assignee:
- UChicago Argonne, LLC (Chicago, IL)
- Patent Number(s):
- 11,754,648
- Application Number:
- 17/156,796
- OSTI ID:
- 2222327
- Resource Relation:
- Patent File Date: 01/25/2021
- Country of Publication:
- United States
- Language:
- English
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