US 12,236,988 B2
Magnetic laminated film, magnetic memory element, magnetic memory, and artificial intelligence system
Yoshiaki Saito, Sendai (JP); Tetsuo Endoh, Sendai (JP); and Shoji Ikeda, Sendai (JP)
Assigned to TOHOKU UNIVERSITY, Sendai (JP)
Filed by TOHOKU UNIVERSITY, Sendai (JP)
Filed on Jul. 8, 2022, as Appl. No. 17/860,546.
Application 17/860,546 is a continuation of application No. PCT/JP2020/048409, filed on Dec. 24, 2020.
Claims priority of application No. 2020-003269 (JP), filed on Jan. 10, 2020.
Prior Publication US 2023/0028652 A1, Jan. 26, 2023
Int. Cl. G11C 11/00 (2006.01); G06N 3/063 (2023.01); G11C 11/16 (2006.01); G11C 11/18 (2006.01); H01F 10/32 (2006.01); H10B 61/00 (2023.01); H10N 50/10 (2023.01); H10N 50/85 (2023.01); H10N 52/80 (2023.01)
CPC G11C 11/161 (2013.01) [G06N 3/063 (2013.01); G11C 11/1673 (2013.01); G11C 11/1675 (2013.01); G11C 11/18 (2013.01); H01F 10/3286 (2013.01); H10B 61/00 (2023.02); H10N 50/10 (2023.02); H10N 50/85 (2023.02); H10N 52/80 (2023.02)] 13 Claims
OG exemplary drawing
 
1. A magnetic multilayer film for a magnetic memory element, the magnetic multilayer film comprising:
an amorphous heavy metal layer having a multilayer structure in which a plurality of first layers containing Hf alternate repeatedly with a plurality of second layers containing a heavy metal excluding Hf; and
a recording layer that includes a ferromagnetic layer and that is formed on the amorphous heavy metal layer, the ferromagnetic layer having a variable magnetization direction.