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VARIATIONS IN THE LIFETIME OF 3dHOLE STATES IN ULTRATHIN FeFILMS GROWN ON Cu(100) DEDUCED FROM THE LMM AUGER SPECTRA OF Fe

Author

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  • S. D'ADDATO

    (Istituto Nazionale di Fisica della Materia and Dipartimento di Fisica, Università di Modena e Reggio Emilia, Via G. Campi 213/a, 41100 Modena, Italy)

  • P. LUCHES

    (Istituto Nazionale di Fisica della Materia and Dipartimento di Fisica, Università di Modena e Reggio Emilia, Via G. Campi 213/a, 41100 Modena, Italy)

  • R. GOTTER

    (Laboratorio TASC-INFM, SS 14 Km 163.5, 34012 Trieste, Italy)

  • L. FLOREANO

    (Laboratorio TASC-INFM, SS 14 Km 163.5, 34012 Trieste, Italy)

  • D. CVETKO

    (Laboratorio TASC-INFM, SS 14 Km 163.5, 34012 Trieste, Italy)

  • A. MORGANTE

    (Laboratorio TASC-INFM, SS 14 Km 163.5, 34012 Trieste, Italy)

  • A. NEWTON

    (Surface Science Research Centre, The University of Liverpool, PO Box 147, Liverpool L69 3BX, UK)

  • D. MARTIN

    (Surface Science Research Centre, The University of Liverpool, PO Box 147, Liverpool L69 3BX, UK)

  • P. UNSWORTH

    (Surface Science Research Centre, The University of Liverpool, PO Box 147, Liverpool L69 3BX, UK)

  • P. WEIGHTMAN

    (Surface Science Research Centre, The University of Liverpool, PO Box 147, Liverpool L69 3BX, UK)

Abstract

The Fe LMM Auger and Auger vacancy satellite spectra of ultrathin Fe films grown on Cu(100) have been measured using photon excitation energies above and below theL2ionisation edge, and in coincidence with the Fe2p3/2and Fe2p1/2photoelectrons. A comparison of the relative intensities of the satellites and main Auger transitions indicates that theM4,5holes ofL3M4,5double hole states are localised for longer than theL3lifetime for the 0.3 and 10 ML coverages but have a lifetime comparable to that ofL3holes for the 1 ML coverage. The results for the 1 ML coverage are supported by the results of the coincidence experiments. The reasons for the variation in the lifetime ofM4,5holes are discussed in terms of changes in the number of Fe–Fe neighbours and the density of states at the Fermi energy in these systems.

Suggested Citation

  • S. D'Addato & P. Luches & R. Gotter & L. Floreano & D. Cvetko & A. Morgante & A. Newton & D. Martin & P. Unsworth & P. Weightman, 2002. "VARIATIONS IN THE LIFETIME OF 3dHOLE STATES IN ULTRATHIN FeFILMS GROWN ON Cu(100) DEDUCED FROM THE LMM AUGER SPECTRA OF Fe," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 9(02), pages 709-716.
    • Handle: RePEc:wsi:srlxxx:v:09:y:2002:i:02:n:s0218625x02002877
    DOI: 10.1142/S0218625X02002877
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