Electronic states for InAs(111)A-(2×2)S surface studied by angle-resolved photoemission spectroscopy

S. Ichikawa; N. Sanada; M. Shimomura; T. Abukawa; S. Kono; Y. Fukuda

doi:10.1016/S0039-6028(00)00071-6

Electronic states for InAs(111)A-(2×2)S surface studied by angle-resolved photoemission spectroscopy

S. Ichikawa, N. Sanada, M. Shimomura, T. Abukawa, S. Kono, Y. Fukuda

SR Core Research Division

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

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.

Original language	English
Pages (from-to)	509-513
Number of pages	5
Journal	Surface Science
Volume	454
Issue number	1
DOIs	https://doi.org/10.1016/S0039-6028(00)00071-6
Publication status	Published - 2000 May 20
Event	ECOSS-18: 18th European Conference on Surface Science - Vienna, Austria Duration: 1999 Sep 21 → 1999 Sep 24

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/S0039-6028(00)00071-6

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title = "Electronic states for InAs(111)A-(2×2)S surface studied by angle-resolved photoemission spectroscopy",

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 {\=M}-{\=Γ}-{\=M}′ and {\=Γ}-{\=K}-{\=M} 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.",

author = "S. Ichikawa and N. Sanada and M. Shimomura and T. Abukawa and S. Kono and Y. Fukuda",

note = "Funding Information: This work was supported by the Institute of Materials Structure Science (proposal number 97G328). The authors are grateful for the technical support of the staffs at Photon Factory. One of us (S.I.) greatly acknowledges the partial financial support of Kokan Keisoku K.K.; ECOSS-18: 18th European Conference on Surface Science ; Conference date: 21-09-1999 Through 24-09-1999",

year = "2000",

month = may,

day = "20",

doi = "10.1016/S0039-6028(00)00071-6",

language = "English",

volume = "454",

pages = "509--513",

journal = "Surface Science",

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TY - JOUR

T1 - Electronic states for InAs(111)A-(2×2)S surface studied by angle-resolved photoemission spectroscopy

AU - Ichikawa, S.

AU - Sanada, N.

AU - Shimomura, M.

AU - Abukawa, T.

AU - Kono, S.

AU - Fukuda, Y.

N1 - Funding Information: This work was supported by the Institute of Materials Structure Science (proposal number 97G328). The authors are grateful for the technical support of the staffs at Photon Factory. One of us (S.I.) greatly acknowledges the partial financial support of Kokan Keisoku K.K.

PY - 2000/5/20

Y1 - 2000/5/20

N2 - 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.

AB - 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.

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U2 - 10.1016/S0039-6028(00)00071-6

DO - 10.1016/S0039-6028(00)00071-6

M3 - Conference article

AN - SCOPUS:0033689582

VL - 454

SP - 509

EP - 513

JO - Surface Science

JF - Surface Science

SN - 0039-6028

IS - 1

T2 - ECOSS-18: 18th European Conference on Surface Science

Y2 - 21 September 1999 through 24 September 1999

ER -

Electronic states for InAs(111)A-(2×2)S surface studied by angle-resolved photoemission spectroscopy

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