Formation of one-dimensional self-assembled silicon nanoribbons on Au(110)-(2 × 1)

Mohamed Rachid Tchalala; Hanna Enriquez; Andrew J. Mayne; Abdelkader Kara; Silvan Roth; Mathieu G. Silly; Azzedine Bendounan; Fausto Sirotti; Thomas Greber; Bernard Aufray; Gérald Dujardin; Mustapha Ait Ali; Hamid Oughaddou

doi:10.1063/1.4793536

Formation of one-dimensional self-assembled silicon nanoribbons on Au(110)-(2 × 1)

Mohamed Rachid Tchalala, Hanna Enriquez, Andrew J. Mayne, Abdelkader Kara, Silvan Roth, Mathieu G. Silly, Azzedine Bendounan, Fausto Sirotti, Thomas Greber, Bernard Aufray, Gérald Dujardin, Mustapha Ait Ali, Hamid Oughaddou

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Abstract

We report results on the self-assembly of silicon nanoribbons (NRs) on the (2 × 1) reconstructed Au(110) surface under ultra-high vacuum conditions. Upon adsorption of 0.2 monolayer (ML) of silicon, the (2 × 1) reconstruction of Au(110) is replaced by an ordered surface alloy. Above this coverage, a new superstructure is revealed by low energy electron diffraction (LEED), which becomes sharper at 0.3 Si ML. This superstructure corresponds to Si nanoribbons all oriented along the [1 ̄ 10] direction as revealed by LEED and scanning tunneling microscopy (STM). STM and high-resolution photoemission spectroscopy indicate that the nanoribbons are flat and predominantly 1.6 nm wide. In addition, the silicon atoms show signatures of two chemical environments corresponding to the edge and center of the ribbons.

Original language	English
Article number	083107
Journal	Applied Physics Letters
Volume	102
Issue number	8
DOIs	https://doi.org/10.1063/1.4793536
Publication status	Published - 25 Feb 2013
Externally published	Yes

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title = "Formation of one-dimensional self-assembled silicon nanoribbons on Au(110)-(2 × 1)",

abstract = "We report results on the self-assembly of silicon nanoribbons (NRs) on the (2 × 1) reconstructed Au(110) surface under ultra-high vacuum conditions. Upon adsorption of 0.2 monolayer (ML) of silicon, the (2 × 1) reconstruction of Au(110) is replaced by an ordered surface alloy. Above this coverage, a new superstructure is revealed by low energy electron diffraction (LEED), which becomes sharper at 0.3 Si ML. This superstructure corresponds to Si nanoribbons all oriented along the [1{\= } 10] direction as revealed by LEED and scanning tunneling microscopy (STM). STM and high-resolution photoemission spectroscopy indicate that the nanoribbons are flat and predominantly 1.6 nm wide. In addition, the silicon atoms show signatures of two chemical environments corresponding to the edge and center of the ribbons.",

author = "\{Rachid Tchalala\}, Mohamed and Hanna Enriquez and Mayne, \{Andrew J.\} and Abdelkader Kara and Silvan Roth and Silly, \{Mathieu G.\} and Azzedine Bendounan and Fausto Sirotti and Thomas Greber and Bernard Aufray and G{\'e}rald Dujardin and \{Ait Ali\}, Mustapha and Hamid Oughaddou",

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month = feb,

day = "25",

doi = "10.1063/1.4793536",

language = "English",

volume = "102",

journal = "Applied Physics Letters",

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TY - JOUR

T1 - Formation of one-dimensional self-assembled silicon nanoribbons on Au(110)-(2 × 1)

AU - Rachid Tchalala, Mohamed

AU - Enriquez, Hanna

AU - Mayne, Andrew J.

AU - Kara, Abdelkader

AU - Roth, Silvan

AU - Silly, Mathieu G.

AU - Bendounan, Azzedine

AU - Sirotti, Fausto

AU - Greber, Thomas

AU - Aufray, Bernard

AU - Dujardin, Gérald

AU - Ait Ali, Mustapha

AU - Oughaddou, Hamid

PY - 2013/2/25

Y1 - 2013/2/25

N2 - We report results on the self-assembly of silicon nanoribbons (NRs) on the (2 × 1) reconstructed Au(110) surface under ultra-high vacuum conditions. Upon adsorption of 0.2 monolayer (ML) of silicon, the (2 × 1) reconstruction of Au(110) is replaced by an ordered surface alloy. Above this coverage, a new superstructure is revealed by low energy electron diffraction (LEED), which becomes sharper at 0.3 Si ML. This superstructure corresponds to Si nanoribbons all oriented along the [1 ̄ 10] direction as revealed by LEED and scanning tunneling microscopy (STM). STM and high-resolution photoemission spectroscopy indicate that the nanoribbons are flat and predominantly 1.6 nm wide. In addition, the silicon atoms show signatures of two chemical environments corresponding to the edge and center of the ribbons.

AB - We report results on the self-assembly of silicon nanoribbons (NRs) on the (2 × 1) reconstructed Au(110) surface under ultra-high vacuum conditions. Upon adsorption of 0.2 monolayer (ML) of silicon, the (2 × 1) reconstruction of Au(110) is replaced by an ordered surface alloy. Above this coverage, a new superstructure is revealed by low energy electron diffraction (LEED), which becomes sharper at 0.3 Si ML. This superstructure corresponds to Si nanoribbons all oriented along the [1 ̄ 10] direction as revealed by LEED and scanning tunneling microscopy (STM). STM and high-resolution photoemission spectroscopy indicate that the nanoribbons are flat and predominantly 1.6 nm wide. In addition, the silicon atoms show signatures of two chemical environments corresponding to the edge and center of the ribbons.

U2 - 10.1063/1.4793536

DO - 10.1063/1.4793536

M3 - Article

AN - SCOPUS:84874880817

SN - 0003-6951

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 8

M1 - 083107

ER -

Formation of one-dimensional self-assembled silicon nanoribbons on Au(110)-(2 × 1)

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