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Phonon density of states of LaFeAsO(1-x)Fx.

Publication ,  Journal Article
Christianson, AD; Lumsden, MD; Delaire, O; Stone, MB; Abernathy, DL; McGuire, MA; Sefat, AS; Jin, R; Sales, BC; Mandrus, D; Mun, ED; Lin, JYY ...
Published in: Physical review letters
October 2008

We have studied the phonon density of states (PDOS) in LaFeAsO(1-x)Fx with inelastic neutron scattering methods. The PDOS of the parent compound (x=0) is very similar to the PDOS of samples optimally doped with fluorine to achieve the maximum Tc (x approximately 0.1). Good agreement is found between the experimental PDOS and first-principles calculations with the exception of a small difference in Fe mode frequencies. The PDOS reported here is not consistent with conventional electron-phonon mediated superconductivity.

Duke Scholars

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

October 2008

Volume

101

Issue

15

Start / End Page

157004

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Christianson, A. D., Lumsden, M. D., Delaire, O., Stone, M. B., Abernathy, D. L., McGuire, M. A., … McQueeney, R. J. (2008). Phonon density of states of LaFeAsO(1-x)Fx. Physical Review Letters, 101(15), 157004. https://doi.org/10.1103/physrevlett.101.157004
Christianson, A. D., M. D. Lumsden, O. Delaire, M. B. Stone, D. L. Abernathy, M. A. McGuire, A. S. Sefat, et al. “Phonon density of states of LaFeAsO(1-x)Fx.Physical Review Letters 101, no. 15 (October 2008): 157004. https://doi.org/10.1103/physrevlett.101.157004.
Christianson AD, Lumsden MD, Delaire O, Stone MB, Abernathy DL, McGuire MA, et al. Phonon density of states of LaFeAsO(1-x)Fx. Physical review letters. 2008 Oct;101(15):157004.
Christianson, A. D., et al. “Phonon density of states of LaFeAsO(1-x)Fx.Physical Review Letters, vol. 101, no. 15, Oct. 2008, p. 157004. Epmc, doi:10.1103/physrevlett.101.157004.
Christianson AD, Lumsden MD, Delaire O, Stone MB, Abernathy DL, McGuire MA, Sefat AS, Jin R, Sales BC, Mandrus D, Mun ED, Canfield PC, Lin JYY, Lucas M, Kresch M, Keith JB, Fultz B, Goremychkin EA, McQueeney RJ. Phonon density of states of LaFeAsO(1-x)Fx. Physical review letters. 2008 Oct;101(15):157004.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

October 2008

Volume

101

Issue

15

Start / End Page

157004

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences