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4f exchange

Yoder-Hill, J., Pause, A., Sonenberg, N., and Merrick, W. C. (1993). The p46 subunit of eukaryotic initiation factor (eIF)-4F exchanges with eIF-4A. J. Biol. Chem. 268, 5566-5573. [Pg.332]

For the highly contracted f electrons of Gd(III) type ions, the magnetic interaction is mediated by the spin polarized 5d, 6s valence electrons. To a good approximation, the 4f exchange field can be viewed as a type of contact effect [6], which only exert its influence on the orbitals centered on the Gd atom. Both the valence 5d and 6s electrons can penetrate to some extent... [Pg.358]

Fig. 3.76. Dependence of the conduction electron-4f exchange integral on the angular momentum of the conduction of the electron wave function. The result shows large d exchange effect (Harmon and Freeman, 1974b). Fig. 3.76. Dependence of the conduction electron-4f exchange integral on the angular momentum of the conduction of the electron wave function. The result shows large d exchange effect (Harmon and Freeman, 1974b).
Fig. 6c. Absorption spectra with d-f symmetry Miv,v> Niv,v in elemental y-cerium. The dashed marks indicate the absorption edges tabulated by Bearden and Burr (1967). The Niv V data are adapted from Wolff et al. (1976), the Mjy y data from Kaindl et al. (1985) (calculated oscillator strengths of the final state multiplets are omitted for reasons of clarity). The shallow core level Niy y spectrum exhibits the characteristic giant resonance above the threshold and 4d 4P mutiplet at threshold. The Njy y multiplet splitting is masked by the large 4d-4f exchange splitting. Fig. 6c. Absorption spectra with d-f symmetry Miv,v> Niv,v in elemental y-cerium. The dashed marks indicate the absorption edges tabulated by Bearden and Burr (1967). The Niv V data are adapted from Wolff et al. (1976), the Mjy y data from Kaindl et al. (1985) (calculated oscillator strengths of the final state multiplets are omitted for reasons of clarity). The shallow core level Niy y spectrum exhibits the characteristic giant resonance above the threshold and 4d 4P mutiplet at threshold. The Njy y multiplet splitting is masked by the large 4d-4f exchange splitting.
The experimental determination of the parameters describing the main interactions, namely the exchange and the crystal field, has considerably progressed in the last decade. We will focus on the 3d-4f exchange interaction. This interaction can be written as... [Pg.328]

The decrease of therefore originates from the increase of the difference between the spatial extent of the 4f and 5d electrons (see fig. 31b). It has been concluded that the change of the effective 3d-4f exchange interaction through the 4f series mainly originates... [Pg.330]


See other pages where 4f exchange is mentioned: [Pg.396]    [Pg.47]    [Pg.165]    [Pg.339]    [Pg.349]    [Pg.350]    [Pg.322]    [Pg.356]    [Pg.472]    [Pg.293]    [Pg.328]    [Pg.328]    [Pg.331]    [Pg.93]    [Pg.87]    [Pg.174]    [Pg.69]    [Pg.70]   
See also in sourсe #XX -- [ Pg.411 ]




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