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Phonons and superconductivity in the cubic perovskite Cr3RhN
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View: Figures


Image of FIG. 1.
FIG. 1.

The electronic band structure for . The Fermi level corresponds to 0 eV.

Image of FIG. 2.
FIG. 2.

The total and partial density of states (DOS) for . The energy scale is presented with respect to the Fermi energy ().

Image of FIG. 3.
FIG. 3.

(a) Calculated phonon dispersion curves of . (b) Total and partial density of states for .

Image of FIG. 4.
FIG. 4.

Lattice specific heat at constant volume of as a function of temperature.

Image of FIG. 5.
FIG. 5.

Schematic eigen displacements of zone-centre optical phonon modes in . All phonon modes are infrared active. The electron-phonon coupling parameter for these phonon modes is also presented.

Image of FIG. 6.
FIG. 6.

(a)The TA and branches of along the [111] direction. The anomalous feature of the branch close to zone centre can be seen clearly. The two transverse acoustic branches are degenerate. (b) Phonon linewidth of the TA and branches due to electron-phonon interaction along the [111] direction in .

Image of FIG. 7.
FIG. 7.

The Eliashberg spectral function () for .

Image of FIG. 8.
FIG. 8.

The electron-phonon prefactor () for .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Phonons and superconductivity in the cubic perovskite Cr3RhN