Optical signatures of thiolate/Cu(110) and S/Cu(110) surface structures

D. S. Martin; Paul D. Lane; G. E. Isted; R. J. Cole; N. P. Blanchard

doi:10.1103/PhysRevB.82.075428

Optical signatures of thiolate/Cu(110) and S/Cu(110) surface structures

D. S. Martin^*, Paul D. Lane, G. E. Isted, R. J. Cole, N. P. Blanchard

^*Corresponding author for this work

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The optical properties of thiolate/Cu(110) and S/Cu(110) surfaces created by the adsorption of methanethiol and L-cysteine are investigated using reflection anisotropy spectroscopy (RAS). We find that characteristic optical signatures are obtained from these systems. The experimental RAS profiles are simulated using a four-phase model consisting of vacuum, anisotropic overlayer, anisotropic surface, and isotropic substrate. The results of the simulations suggest that a broad optical transition at 3.8 eV is associated with the thiolate/Cu (110) interface, consistent with recent first-principles calculations [S. D'Agostino et al., Phys. Rev. B 75, 195444 (2007)].

Original language	English
Article number	075428
Number of pages	6
Journal	Physical Review B: Condensed Matter and Materials Physics
Volume	82
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.82.075428
Publication status	Published - 15 Aug 2010

Keywords

REFLECTANCE-ANISOTROPY SPECTROSCOPY
SELF-ASSEMBLING MONOLAYERS
CU(110) SURFACES
DIFFERENCE SPECTROSCOPY
ADSORPTION
CHEMISORPTION
ORIENTATION
AU(110)
GROWTH
STATES

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@article{f9848066cbb7449db23dc78aea056d6e,

title = "Optical signatures of thiolate/Cu(110) and S/Cu(110) surface structures",

abstract = "The optical properties of thiolate/Cu(110) and S/Cu(110) surfaces created by the adsorption of methanethiol and L-cysteine are investigated using reflection anisotropy spectroscopy (RAS). We find that characteristic optical signatures are obtained from these systems. The experimental RAS profiles are simulated using a four-phase model consisting of vacuum, anisotropic overlayer, anisotropic surface, and isotropic substrate. The results of the simulations suggest that a broad optical transition at 3.8 eV is associated with the thiolate/Cu (110) interface, consistent with recent first-principles calculations [S. D'Agostino et al., Phys. Rev. B 75, 195444 (2007)].",

keywords = "REFLECTANCE-ANISOTROPY SPECTROSCOPY, SELF-ASSEMBLING MONOLAYERS, CU(110) SURFACES, DIFFERENCE SPECTROSCOPY, ADSORPTION, CHEMISORPTION, ORIENTATION, AU(110), GROWTH, STATES",

author = "Martin, {D. S.} and Lane, {Paul D.} and Isted, {G. E.} and Cole, {R. J.} and Blanchard, {N. P.}",

year = "2010",

month = aug,

day = "15",

doi = "10.1103/PhysRevB.82.075428",

language = "English",

volume = "82",

journal = "Physical Review B: Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "7",

}

TY - JOUR

T1 - Optical signatures of thiolate/Cu(110) and S/Cu(110) surface structures

AU - Martin, D. S.

AU - Lane, Paul D.

AU - Isted, G. E.

AU - Cole, R. J.

AU - Blanchard, N. P.

PY - 2010/8/15

Y1 - 2010/8/15

N2 - The optical properties of thiolate/Cu(110) and S/Cu(110) surfaces created by the adsorption of methanethiol and L-cysteine are investigated using reflection anisotropy spectroscopy (RAS). We find that characteristic optical signatures are obtained from these systems. The experimental RAS profiles are simulated using a four-phase model consisting of vacuum, anisotropic overlayer, anisotropic surface, and isotropic substrate. The results of the simulations suggest that a broad optical transition at 3.8 eV is associated with the thiolate/Cu (110) interface, consistent with recent first-principles calculations [S. D'Agostino et al., Phys. Rev. B 75, 195444 (2007)].

AB - The optical properties of thiolate/Cu(110) and S/Cu(110) surfaces created by the adsorption of methanethiol and L-cysteine are investigated using reflection anisotropy spectroscopy (RAS). We find that characteristic optical signatures are obtained from these systems. The experimental RAS profiles are simulated using a four-phase model consisting of vacuum, anisotropic overlayer, anisotropic surface, and isotropic substrate. The results of the simulations suggest that a broad optical transition at 3.8 eV is associated with the thiolate/Cu (110) interface, consistent with recent first-principles calculations [S. D'Agostino et al., Phys. Rev. B 75, 195444 (2007)].

KW - REFLECTANCE-ANISOTROPY SPECTROSCOPY

KW - SELF-ASSEMBLING MONOLAYERS

KW - CU(110) SURFACES

KW - DIFFERENCE SPECTROSCOPY

KW - ADSORPTION

KW - CHEMISORPTION

KW - ORIENTATION

KW - AU(110)

KW - GROWTH

KW - STATES

U2 - 10.1103/PhysRevB.82.075428

DO - 10.1103/PhysRevB.82.075428

M3 - Article

SN - 1098-0121

VL - 82

JO - Physical Review B: Condensed Matter and Materials Physics

JF - Physical Review B: Condensed Matter and Materials Physics

IS - 7

M1 - 075428

ER -

Optical signatures of thiolate/Cu(110) and S/Cu(110) surface structures

Abstract

Keywords

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