Perpendicular magnetic anisotropy and the reorientation transition of the magnetization inCeH2/Femultilayers probed by x-ray magnetic circular dichroism

Magnetic polarization of the La and Ce5dstates near the interfaces ofFe/LaHMünzenberg1, Leuenberger2, Felsch3 et al. 2003Phys. Rev. BSelf Cite5240View full textAdd to dashboardCite

“…This is profoundly related to the physical properties of the CeH x /Fe multilayers, as it has been discussed extensively elsewhere for the metallic phase of the hydride (xϭ2Ϫ␦). 22 Their magnetization, for example, turns perpendicular to the layer plane at low temperatures. This orientational transition involves the Ce 4 f moments at the interfaces interacting with the Fe 3d states via the Ce 5d states.…”

“…We have recently studied, 22 by measurements of XMCD, the magnetic properties of metallic LaH x and CeH x thin films (xϭ2Ϫ␦) embedded in multilayers ͓Fe/LaH x ͔ϫn and ͓Fe/CeH x ͔ϫn, which also are the subject of the present investigation. The experiments have shown that the hydride sublayers are magnetically polarized by Fe up to some depth near the interfaces even at room temperature.…”

New adventures in soft x‐ray scattering

“…The temperature dependence of the Ce 4/contribution to the stripe domains is noticeably different to the Fe 3d contribution (see Figure 2(b)) since only below 100 K (much lower than the spin reorientation temperature) are weak first-order magnetic Bragg peaks visible as shoulders. Although the second-order scattering contributions are too weak to be clearly resolved, the strong 4/ spin-orbit anisotropy will be aligned by interface crystalline field effects leading to a single-ion anisotropy at the lowest temperatures [34]. The interface sensitivity of SXRS can be demonstrated using soft X-ray standing waves, which show that the first-order magnetic peak is mainly sensitive to the bulk of the Fe layers, whereas the second-order peak probes the interface region [21].…”

“…The magnetization in this multilayer goes through a spin reorientation transition, as the temperature is lowered, and splits up into a regular spin-up and spin-down stripe domain configuration. The domains arise due to a competition between the MAE, which promotes the spin reorientation, and the magnetostatic anisotropy, which favors an in-plane magnetization [33,34]. The MAE driving the spin reorientation can have two possible origins.…”

Resonant Inelastic X-ray Scattering

“…Figure 12 illustrates such an experiment [50] performed on Ce-Fe and CeH 2 -Fe multilayers. Ce in these multilayers is α-like and γ-like respectively and has interesting magnetic properties [51,52].…”