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Laser-induced ultrafast demagnetization and perpendicular magnetic anisotropy reduction in a <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Co</mml:mi><mml:mn>88</mml:mn></mml:msub><mml:msub><mml:mi>Tb</mml:mi><mml:mn>12</mml:mn></mml:msub></mml:mrow></mml:math> thin film with stripe domains
We use time-resolved x-ray resonant magnetic scattering (tr-XRMS) at the Co M$_{2,3}$- and Tb O$_1$-edges to study ultrafast demagnetization in an amorphous Co$_{88}$Tb$_{12}$ alloy with stripe domains. Combining the femtosecond temporal with nanometer spatial resolution of our experiment, we demonstrate that the equilibrium spin texture of the thin film remains …