The kinetic energy dependent effective Debye temperature for CoS2 (100)

Ning Wu, David Wisbey, Takashi Komesu, Z. X. Yu, M. Manno, L. Wang, C. Leighton, P. A. Dowben

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The effective Debye temperatures of the highly spin-polarized material CoS2 were measured using temperature dependent low energy electron diffraction and shown to be dependent upon electron kinetic energy. The normal dynamic motion of the (100) surface results in the effective surface Debye temperature of 326 ± 9 K compared to a bulk Debye temperature of 612 ± 24 K. Similar values for the bulk Debye temperature have been obtained through LEED I(V) analysis and core level photoemission with a lower value for the bulk Debye temperature found from heat capacity measurements.

Original languageEnglish (US)
Pages (from-to)2484-2489
Number of pages6
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume372
Issue number14
DOIs
StatePublished - Mar 31 2008

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kinetic energy
specific heat
photoelectric emission
electron diffraction
electrons
temperature
energy

Keywords

  • Cobalt pyrite
  • Lattice vibrations
  • Surface Debye temperature

Cite this

The kinetic energy dependent effective Debye temperature for CoS2 (100). / Wu, Ning; Wisbey, David; Komesu, Takashi; Yu, Z. X.; Manno, M.; Wang, L.; Leighton, C.; Dowben, P. A.

In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 372, No. 14, 31.03.2008, p. 2484-2489.

Research output: Contribution to journalArticle

Wu, Ning ; Wisbey, David ; Komesu, Takashi ; Yu, Z. X. ; Manno, M. ; Wang, L. ; Leighton, C. ; Dowben, P. A. / The kinetic energy dependent effective Debye temperature for CoS2 (100). In: Physics Letters, Section A: General, Atomic and Solid State Physics. 2008 ; Vol. 372, No. 14. pp. 2484-2489.
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AU - Wang, L.

AU - Leighton, C.

AU - Dowben, P. A.

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