The first structurally characterized hexafluorido complex of a tetravalent actinide ion, the [UF6]2−anion, is reported in the (NEt4)2[UF6]⋅2 H2O salt (
This content will become publicly available on March 18, 2025
Quantifying the orbital-to-spin moment ratio under dynamic excitation
The orbital component of magnetization dynamics, e.g., excited by ferromagnetic resonance (FMR), may generate “orbitronic” effects in nanomagnetic devices. Yet, distinguishing orbital dynamics from spin dynamics remains a challenge. Here, we employ x-ray magnetic circular dichroism (XMCD) to quantify the ratio between the orbital and spin components of FMR-induced dynamics in a Ni80Fe20 film. By applying the XMCD sum rules at the Ni L3,2 edges, we obtain an orbital-to-spin ratio of 0.108 ± 0.005 for the dynamic magnetization. This value is consistent with 0.102 ± 0.008 for the static magnetization, probed with the same x-ray beam configuration as the dynamic XMCD experiment. The demonstrated method presents a possible path to disentangle orbitronic effects from their spintronic counterparts in magnetic media.
more » « less- PAR ID:
- 10500544
- Publisher / Repository:
- AIP
- Date Published:
- Journal Name:
- Applied Physics Letters
- Volume:
- 124
- Issue:
- 12
- ISSN:
- 0003-6951
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Abstract The first structurally characterized hexafluorido complex of a tetravalent actinide ion, the [UF6]2−anion, is reported in the (NEt4)2[UF6]⋅2 H2O salt (
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