US 12,304,987 B2
High verdet constant nanoparticles and methods for producing and using the same
Dong-Chul “Jeffrey” Pyun, Tucson, AZ (US); Robert A. Norwood, Tucson, AZ (US); Nicholas George Pavlopoulos, Tucson, AZ (US); Kyle Carothers, Tucson, AZ (US); Lindsey Holmen, Tucson, AZ (US); Tobias Kochenderfer, Tucson, AZ (US); and Nicholas Lyons, Tucson, AZ (US)
Assigned to Arizona Board of Regents on Behalf of the University of Arizona, Tucson, AZ (US)
Appl. No. 17/435,645
Filed by Arizona Board of Regents on Behalf of the University of Arizona, Tucson, AZ (US)
PCT Filed Mar. 4, 2020, PCT No. PCT/US2020/021014
§ 371(c)(1), (2) Date Sep. 1, 2021,
PCT Pub. No. WO2020/180999, PCT Pub. Date Sep. 10, 2020.
Claims priority of provisional application 62/813,719, filed on Mar. 4, 2019.
Claims priority of provisional application 62/813,734, filed on Mar. 4, 2019.
Prior Publication US 2022/0153902 A1, May 19, 2022
Int. Cl. C08F 292/00 (2006.01); G02F 1/00 (2006.01); G02F 1/09 (2006.01); H01F 1/11 (2006.01)
CPC C08F 292/00 (2013.01) [G02F 1/0036 (2013.01); H01F 1/11 (2013.01); G02F 1/09 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A solid substrate comprising (i) a solid substrate layer and (ii) a plurality of thin layers of a polymeric composition, wherein:
each thin layer of said polymeric composition is separated by a separation film; and
the polymeric composition comprising a plurality of magnetic nanocomposite particles interspersed therein, wherein each of said magnetic nanocomposite particle comprises a magnetic nanoparticle having a plurality of organic polymer ligands attached to its surface, and wherein said polymeric composition has a Verdet constant of at least 5,000°/T-m at 1310 nm wavelength.