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Electronic structure and magnetism in compressed transition metals
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) XMCD spectra for iron, cobalt, and nickel as a function of pressure. The energy scale is relative to the -edge energy: for Fe, for Co, and for Ni. All spectra are normalized to the amplitude of the edge jump.

Image of FIG. 2.
FIG. 2.

(Color online) Net magnetic moment for iron, cobalt, and nickel as a function of compression. The data points represent measured XMCD signal scaled to the standard moment for each material (Fe: , Co: , and Ni: ). The solid lines represent linear fits of the data, extrapolated to reach the axis (vanishing moments). The dotted lines represent the results of DFT calculations for hcp phase of iron (in blue) (Ref. 22) and cobalt (in red) (Ref. 12).

Image of FIG. 3.
FIG. 3.

(Color online) XANES spectra in Fe, Co, and Ni with pressure. On the right is a detail of the near-edge peak associated with transitions into mixed final states. The increase with pressure of the edge peak suggests increased delocalization of electrons (band broadening).

Image of FIG. 4.
FIG. 4.

(Color online) Intensity of the spectral feature as a function of compression showing increased hybridization (Ref. 19). The discontinuous jump observed in the Fe corresponds to a transition to a higher coordinated hcp structure above .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electronic structure and magnetism in compressed 3d transition metals