Momentum transfer resolved memory in a magnetic system with perpendicular anisotropy | Zendy

Keoki Seu | Zendy; Sujoy Roy | Zendy; Run Su | Zendy; Daniel Parks | Zendy; Erik Shipton | Zendy; Eric E. Fullerton | Zendy; S. D. Kevan | Zendy

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Momentum transfer resolved memory in a magnetic system with perpendicular anisotropy

Author(s) -

Keoki Seu,

Sujoy Roy,

Run Su,

Daniel Parks,

Erik Shipton,

Eric E. Fullerton,

S. D. Kevan

Publication year - 2011

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3569952

Subject(s) - condensed matter physics , scattering , magnetization , physics , nucleation , magnetic domain , anisotropy , momentum transfer , domain wall (magnetism) , magnetic anisotropy , angular momentum , optics , materials science , magnetic field , classical mechanics , thermodynamics , quantum mechanics

We have used resonant, coherent soft x-ray scattering to measure wave vector re- solved magnetic domain memory in Co/Pd multilayers. The technique uses angular cross correlation functions and can be applied to any system with circular annuli of constant values of scattering wave vector q. In our Co/Pd film, the memory exhibits a maximum at q = 0.0384 nm-1 near initial reversal that decreases in magnitude as the magnetization is further reversed. The peak is attributed to bubble domains that nucleate reproducibly near initial reversal and which grow into a labyrinth domain structure that is not reproduced from one magnetization cycle to the next.

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