Phonon Spectrum of Thorium

Reese, Randall; Sinha, Sunil K.; Peterson, D.T.

doi:10.1103/physrevb.8.1332

Cited by 49 publications

(20 citation statements)

References 17 publications

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“…2) on the phonon dispersion in f.c.c. thorium show good agreement with the experimental findings of Reese et al [23]. The present model has earlier predicted the cohesive energy and therefore, explains all the qualitative features of phonon dispersion relations of the said metal.…”

Section: Discussionsupporting

confidence: 91%

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Phonons in F.C.C. Thorium

Rathore¹

1994

Physica Status Solidi (b)

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The generalized form of the exponential potential is suitably extended to account for a) a realistic realization of interactions at small separations, b) embodying three-body and electronic effects into the interaction through the parameters n and m, respectively, in an alternative and simpler form, c) a model free from the usual fitting procedure. The efficacy of the potential known as extended generalized exponential potential (EGEP) so developed is employed to compute the phonon dispersion in thorium. The predictions show good agreement with experimental findings.

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Section: Discussionsupporting

confidence: 91%

“…2 shows the dispersion relations for f.c.c. thorium along with the predictions of Oli [12], Thakur and Singh [27], and experimental findings of Reese et al [23].…”

Section: Computations and Resultsmentioning

confidence: 77%

Phonons in F.C.C. Thorium

Rathore¹

1994

Physica Status Solidi (b)

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“…While the phonons between ξ=0.4 and 0.6 show a large energy increase with pressure, the phonon energy decreases at the zone boundary, thus leading to a pronounced overbending of the branch. The shape of the LA phonon branches in the α-phase are close to those measured in thorium at ambient conditions [2] while the γ-phase phonon dispersion resembles fcc metastable lanthanum [3]. This behaviour might be a signature of substantial changes in the Fermi surface topology, leading to significant changes in the electron-phonon coupling mechanism.…”

Section: †Esrf Francesupporting

confidence: 50%

FY05 LDRD Final Report Mapping Phonons at High-pressure

Farber¹,

Antonangelli²,

Beraud³

et al. 2006

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“…6). Comparison of the phonon dispersion curves with those of thorium [81] shows that the spectrum of -cerium is in general softer (i.e. its vibration frequencies are smaller) than one expects from the Lindemann criterion for melting.…”

Section: Softening Of the Bulk Modulus At The  Transition And Othementioning

confidence: 94%