Title of article
Electronic states for InAs(111)A-(2×2)S surface studied by angle-resolved photoemission spectroscopy
Author/Authors
Ichikawa، نويسنده , , S. and Sanada، نويسنده , , N. and Shimomura، نويسنده , , M. and Abukawa، نويسنده , , T. and Kono، نويسنده , , S. and Fukuda، نويسنده , , Y.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2000
Pages
5
From page
509
To page
513
Abstract
Valence electronic states for an InAs(111)A-(2×2)S surface are investigated by using synchrotron radiation angle-resolved photoemission spectroscopy (SRARPES). Three bands at 1.0–1.2, 3.3, and 4.6–4.7 eV below the Fermi level are found outside the projection of bulk bands along the M̄–Γ̄–M̄′ and Γ̄–K̄–M̄ azimuths. A band at 2.8 eV below the Fermi level is found in the normal emission spectra for the (2×2)S surface. This band is located within the projection of bulk bands and independent of the momentum component normal to the surface, k⊥. The four bands are ascribed to surface states or surface resonances for the (2×2)S surface. The origin of the surface bands is discussed.
Keywords
Surface states , etc.) , Surface relaxation and reconstruction , Adatoms , Indium arsenide , Angle resolved photoemission , sulphides , Surface potential , Surface electronic phenomena (work function , Synchrotron radiation photoelectron spectroscopy
Journal title
Surface Science
Serial Year
2000
Journal title
Surface Science
Record number
1688143
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