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Element-specific spin and orbital momentum dynamics of multilayers
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) (a) X-ray transmission streaks at the Fe edge with alternate orientation of x-ray polarization and sample magnetization. The difference (XMCD) streak reveals a rapid demagnetization at when the pump laser heats the sample. (b) Time-energy maps of the transient XMCD at the Fe (left) and Gd (right) edges demonstrate a complete loss of the dichroism across the absorption spectrum after laser irradiation. Shown on the sides are XMCD spectra of Fe and Gd averaged over (blue dotted line).

Image of FIG. 2.
FIG. 2.

(Color online) Transient dichroism (left ordinate) at the Fe (a) and Gd edges (b) and transient spin and orbital momenta , (right ordinate) of Fe (a) and Gd (b). The demagnetization of both materials is synchronous. For an easier comparison the antiferromagnetically coupled Gd momenta are inverted in sign.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Fe spin momentum and orbital momentum are normalized to their values before , illustrating their simultaneous decay. (b) The orbital to spin momentum ratio is approximately constant during the magnetic phase transition.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Element-specific spin and orbital momentum dynamics of Fe∕Gd multilayers