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A high-energy inelastic neutron scattering investigation of the Gd–Co exchange interactions in : Comparison with density-functional calculations
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Image of FIG. 1.
FIG. 1.

Comparison of the and crystal structures.

Image of FIG. 2.
FIG. 2.

Inelastic neutron spectrum of as recorded at . The solid line is guide to the eyes. The shaded area indicates the nonmagnetic inelastic intensity as deduced from the spectrum recorded by the high-angle detector banks. The neutron incident energy was .

Image of FIG. 3.
FIG. 3.

(a) Inelastic neutron spectrum of after removal of the nonmagnetic inelastic intensity. The points are the experimental data and the line is a fit to the data. (b) The plot represents a zoom around the inelastic signal.

Image of FIG. 4.
FIG. 4.

Density of states of .


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Table I.

Comparison of the spontaneous magnetization of and .

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Table II.

Interatomic distances and number of near neighbors of the two Gd sites.

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Table III.

Comparison of the inelastic neutron scattering results obtained in and in . The corresponding molecular fields on the Gd sites and Gd–Co exchange coupling constants are also reported. (The calculated mean cobalt values of represent the spin moment only.)

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Table IV.

Calculated spin magnetic moments in .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A high-energy inelastic neutron scattering investigation of the Gd–Co exchange interactions in GdCo4B: Comparison with density-functional calculations