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Physical Review Letters
Volumn 68, Issue 14, 1992, Pages 2247-2250
Surface electronic structure and off-site Auger transitions on TaC(111) observed with Auger-photoelectron coincidence spectroscopy
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[No Author keywords available]
Indexed keywords

EID: 4243292089     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.68.2247     Document Type: Article
Times cited : (32)
References (27)
  • 6
    • 84927419476 scopus 로고    scopus 로고
    • G. A. Sawatzky, in Ref. [5], p. 168.
  • 8
    • 84927419474 scopus 로고    scopus 로고
    • The calculation was performed for the minimum energy surface which has a 12% inward relaxation; M. Weinert (unpublished).
  • 11
    • 84927419473 scopus 로고    scopus 로고
    • Physical Electronics, Eden Prairie, MN, model 15-225G.
  • 13
    • 84927419472 scopus 로고    scopus 로고
    • The contribution from the surface core level to the signal acquired while the photoemission analyzer is fixed at the kinetic energy of the bulk core level is estimated by the overlap of a Gaussian of energy width equal to the photon energy resolution (0.3 eV) centered at the surface core level with a Gaussian of energy width equal to the electron energy resolution (0.25 eV) of the cylindrical mirror analyzer centered at the kinetic energy of the bulk core level.
  • 15
    • 84927419471 scopus 로고    scopus 로고
    • S.-C. Lui, D. M. Zehner, G. R. Gruzalski, and D. Heskett (unpublished).
  • 16
    • 84927419470 scopus 로고    scopus 로고
    • A recent LEED IV study [H. L. Davis, B. Dötsch, and D. M. Zehner, J. Vac. Sci. Technol. (to be published)] indicates that the surface is Ta terminated.
  • 18
    • 84927419469 scopus 로고    scopus 로고
    • For other systems (cf. Ref. [19]), we have observed a significant contribution to coincidence Auger spectra from intrinsic secondaries; however, this emission exhibits no structure. In addition, from the lack of features in the loss spectrum of the TaC core levels (only Ta 5 p's are seen below the 4f levels in Fig. 1) we approximate the secondary electron background with a smooth monotonic function. The conclusions we reach do not depend on the detailed nature of this shape.
  • 23
    • 84927419467 scopus 로고    scopus 로고
    • A detailed discussion of the matrix elements relevant to these transitions is given in Ref. [10].
  • 26
    • 84927419465 scopus 로고    scopus 로고
    • X.-L. Zhou, X.-Y. Zhu, and J. M. White, Surf. Sci. Rep. (to be published).

* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.