Investigation of Au and Ag segregation on Fe(001) with soft X-ray absorption

F. Bonell; D. D. Lam; S. Yoshida; Y. T. Takahashi; Y. Shiota; S. Miwa; T. Nakamura; Y. Suzuki

doi:10.1016/j.susc.2013.05.010

Investigation of Au and Ag segregation on Fe(001) with soft X-ray absorption

F. Bonell, D. D. Lam, S. Yoshida, Y. T. Takahashi, Y. Shiota, S. Miwa, T. Nakamura, Y. Suzuki

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

7 Citations (Scopus)

Abstract

We investigated the X-ray absorption at the Fe L₃ edge of Fe grown on Cr(001), Au(001) and Ag(001). Systematic variations in the absorption were observed depending on the nature of the buffer. They are explained by segregation of Au and Ag during Fe deposition at room temperature. By measuring wedge shaped samples, the segregated amounts could be measured. Taking into account the possible influence of roughness, we find that the segregated amounts of Au and Ag on a 1 nm-thick Fe film are 0.8 ± 0.3 ML and 2.0 ± 0.3 ML, respectively.

Original language	English
Pages (from-to)	125-130
Number of pages	6
Journal	Surface Science
Volume	616
DOIs	https://doi.org/10.1016/j.susc.2013.05.010
Publication status	Published - 2013 Oct
Externally published	Yes

Keywords

Roughness
Segregation
X-ray absorption spectroscopy

ASJC Scopus subject areas

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

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10.1016/j.susc.2013.05.010

Cite this

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title = "Investigation of Au and Ag segregation on Fe(001) with soft X-ray absorption",

abstract = "We investigated the X-ray absorption at the Fe L3 edge of Fe grown on Cr(001), Au(001) and Ag(001). Systematic variations in the absorption were observed depending on the nature of the buffer. They are explained by segregation of Au and Ag during Fe deposition at room temperature. By measuring wedge shaped samples, the segregated amounts could be measured. Taking into account the possible influence of roughness, we find that the segregated amounts of Au and Ag on a 1 nm-thick Fe film are 0.8 ± 0.3 ML and 2.0 ± 0.3 ML, respectively.",

keywords = "Roughness, Segregation, X-ray absorption spectroscopy",

author = "F. Bonell and Lam, {D. D.} and S. Yoshida and Takahashi, {Y. T.} and Y. Shiota and S. Miwa and T. Nakamura and Y. Suzuki",

note = "Funding Information: F.B. and Y.S. were supported by a Grant-in-Aid for JSPS Fellows . The measurements were performed in SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (Proposal Nos. 2011B1720, 2012A1671).",

year = "2013",

month = oct,

doi = "10.1016/j.susc.2013.05.010",

language = "English",

volume = "616",

pages = "125--130",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier",

}

TY - JOUR

T1 - Investigation of Au and Ag segregation on Fe(001) with soft X-ray absorption

AU - Bonell, F.

AU - Lam, D. D.

AU - Yoshida, S.

AU - Takahashi, Y. T.

AU - Shiota, Y.

AU - Miwa, S.

AU - Nakamura, T.

AU - Suzuki, Y.

N1 - Funding Information: F.B. and Y.S. were supported by a Grant-in-Aid for JSPS Fellows . The measurements were performed in SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (Proposal Nos. 2011B1720, 2012A1671).

PY - 2013/10

Y1 - 2013/10

N2 - We investigated the X-ray absorption at the Fe L3 edge of Fe grown on Cr(001), Au(001) and Ag(001). Systematic variations in the absorption were observed depending on the nature of the buffer. They are explained by segregation of Au and Ag during Fe deposition at room temperature. By measuring wedge shaped samples, the segregated amounts could be measured. Taking into account the possible influence of roughness, we find that the segregated amounts of Au and Ag on a 1 nm-thick Fe film are 0.8 ± 0.3 ML and 2.0 ± 0.3 ML, respectively.

AB - We investigated the X-ray absorption at the Fe L3 edge of Fe grown on Cr(001), Au(001) and Ag(001). Systematic variations in the absorption were observed depending on the nature of the buffer. They are explained by segregation of Au and Ag during Fe deposition at room temperature. By measuring wedge shaped samples, the segregated amounts could be measured. Taking into account the possible influence of roughness, we find that the segregated amounts of Au and Ag on a 1 nm-thick Fe film are 0.8 ± 0.3 ML and 2.0 ± 0.3 ML, respectively.

KW - Roughness

KW - Segregation

KW - X-ray absorption spectroscopy

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U2 - 10.1016/j.susc.2013.05.010

DO - 10.1016/j.susc.2013.05.010

M3 - Article

AN - SCOPUS:84880918866

SN - 0039-6028

VL - 616

SP - 125

EP - 130

JO - Surface Science

JF - Surface Science

ER -

Investigation of Au and Ag segregation on Fe(001) with soft X-ray absorption

Abstract

Keywords

ASJC Scopus subject areas

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