US 12,345,781 B2
Apparatus and method for generating magnetic vortex spin structures
Mathias Klaeui, Mainz (DE); Udo Ausserlechner, Villach (AT); Johannes Guettinger, Lind Ob Velden (AT); Armin Satz, Villach (AT); and Juergen Zimmer, Neubiberg (DE)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Jul. 14, 2022, as Appl. No. 17/864,810.
Claims priority of application No. 102021118833.4 (DE), filed on Jul. 21, 2021.
Prior Publication US 2023/0026375 A1, Jan. 26, 2023
Int. Cl. G01R 33/07 (2006.01); G01R 33/09 (2006.01); H01F 10/32 (2006.01)
CPC G01R 33/07 (2013.01) [G01R 33/09 (2013.01); H01F 10/32 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An apparatus for generating magnetic vortex spin structures, comprising:
a magnetic domain wall channel structure having at least one magnetic domain wall configured to move in response to a rotating external magnetic field, wherein the magnetic domain wall channel structure is spiral; and
a magnetic injection structure, facing the magnetic domain wall channel structure and arranged at one end of the magnetic domain wall channel structure, configured to:
generate at least one magnetic vortex spin structure, in response to the at least one magnetic domain wall being moved in the magnetic domain wall channel structure past the magnetic injection structure, and
provide the at least one magnetic vortex spin structure to a magnetic reservoir structure,
wherein the magnetic injection structure extends outwardly from the magnetic reservoir structure, and wherein the magnetic injection structure is arranged at one end of the magnetic domain wall channel structure and is between the magnetic reservoir structure and the magnetic domain wall channel structure.