期刊
PHYSICAL REVIEW B
卷 76, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.76.024425
关键词
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资金
- Engineering and Physical Sciences Research Council [EP/F000375/1] Funding Source: researchfish
- EPSRC [EP/F000375/1] Funding Source: UKRI
X-ray magnetic circular dichroism (XMCD) measurements were performed at the U M(4,5) edges and Fe K edge on well-defined uranium/iron multilayers with different compositions. The multilayers have layer thicknesses in the range 9-40 A for uranium and 9-34 A for iron. At both 10 K and room temperature, the U layers are magnetically polarized in all of the multilayers studied. To deduce the magnetic moment on the uranium from the XMCD results requires assumptions about the magnetic dipole operator < T(Z)> in the analysis, and this is discussed in detail. Given the most likely scenario of strong hybridization between the U 5f and Fe 3d states, the largest value of the induced U moment is similar to 0.12 mu(B), which is located primarily at the interface and oscillates within the uranium layer.
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