The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2021
Filed:
Aug. 15, 2017
Applicant:
Uchicago Argonne, Llc, Chicago, IL (US);
Inventors:
Valentine Novosad, Lemont, IL (US);
Elena A. Rozhkova, Lemont, IL (US);
Maxim Nikitin, Moscow, RU;
Petr Nikitin, Moscow, RU;
Assignee:
UChicago Argonne, LLC, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/00 (2006.01); G01R 33/12 (2006.01); A61B 5/05 (2006.01); A61K 49/18 (2006.01);
U.S. Cl.
CPC ...
G01R 33/1269 (2013.01); A61B 5/0515 (2013.01); A61K 49/1806 (2013.01); A61K 49/1818 (2013.01); G01R 33/1276 (2013.01);
Abstract
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.