Open AccessElement‐specific magnetization curves and crossover in Co/Cu/Ni/Cu(001) trilayers studied by XMCD
Author(s) -
Scherz A.,
Wilhelm F.,
Poulopoulos P.,
Wende H.,
Baberschke K.
Publication year - 2001
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049500016654
Subject(s) - magnetization , condensed matter physics , anisotropy , materials science , coupling (piping) , remanence , work (physics) , rotation (mathematics) , thermodynamics , physics , metallurgy , magnetic field , geometry , optics , mathematics , quantum mechanics
We present temperature‐dependent measurements via the element‐specific XMCD technique for Co/Cu/Ni trilayers for cases where the ordering temperature of Co is lower than the one of Ni. Our work focuses mainly on the influence of the interlayer coupling on the shape of the temperature‐dependent magnetization curves of Ni. By selecting 1.3 ML of Co and 4 ML of Ni we get a lower T C (Co) ≃ 90 K and a higher T C (Ni) ≃ 180 K. The crossing of the M ( T ) curves leads to a rotation of the remanent magnetization of Ni. A case where the sublayer magnetizations change gradually their angle as a function of the temperature is recorded and attributed to a competition between coupling and anisotropy mechanisms.