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Neutron scattering measurements of phonons in nickel at elevated temperatures

Publication ,  Journal Article
Kresch, M; Delaire, O; Stevens, R; Lin, JYY; Fultz, B
Published in: Physical Review B - Condensed Matter and Materials Physics
March 9, 2007

Measurements of elastic and inelastic neutron scatterings from elemental nickel were made at 10, 300, 575, 875, and 1275 K. The phonon densities of states (DOSs) were calculated from the inelastic scattering and were fit with Born-von Kármán models of the lattice dynamics. With ancillary data on thermal expansion and elastic moduli, we found a small, negative anharmonic contribution to the phonon entropy at high temperature. We used this to place bounds on the magnetic entropy of nickel. A significant broadening of the phonon DOS at elevated temperatures, another indication of anharmonicity, was also measured and quantified. © 2007 The American Physical Society.

Duke Scholars

Published In

Physical Review B - Condensed Matter and Materials Physics

DOI

EISSN

1550-235X

ISSN

1098-0121

Publication Date

March 9, 2007

Volume

75

Issue

10

Related Subject Headings

  • Fluids & Plasmas
  • 09 Engineering
  • 03 Chemical Sciences
  • 02 Physical Sciences
 

Citation

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Kresch, M., Delaire, O., Stevens, R., Lin, J. Y. Y., & Fultz, B. (2007). Neutron scattering measurements of phonons in nickel at elevated temperatures. Physical Review B - Condensed Matter and Materials Physics, 75(10). https://doi.org/10.1103/PhysRevB.75.104301
Kresch, M., O. Delaire, R. Stevens, J. Y. Y. Lin, and B. Fultz. “Neutron scattering measurements of phonons in nickel at elevated temperatures.” Physical Review B - Condensed Matter and Materials Physics 75, no. 10 (March 9, 2007). https://doi.org/10.1103/PhysRevB.75.104301.
Kresch M, Delaire O, Stevens R, Lin JYY, Fultz B. Neutron scattering measurements of phonons in nickel at elevated temperatures. Physical Review B - Condensed Matter and Materials Physics. 2007 Mar 9;75(10).
Kresch, M., et al. “Neutron scattering measurements of phonons in nickel at elevated temperatures.” Physical Review B - Condensed Matter and Materials Physics, vol. 75, no. 10, Mar. 2007. Scopus, doi:10.1103/PhysRevB.75.104301.
Kresch M, Delaire O, Stevens R, Lin JYY, Fultz B. Neutron scattering measurements of phonons in nickel at elevated temperatures. Physical Review B - Condensed Matter and Materials Physics. 2007 Mar 9;75(10).

Published In

Physical Review B - Condensed Matter and Materials Physics

DOI

EISSN

1550-235X

ISSN

1098-0121

Publication Date

March 9, 2007

Volume

75

Issue

10

Related Subject Headings

  • Fluids & Plasmas
  • 09 Engineering
  • 03 Chemical Sciences
  • 02 Physical Sciences