Atomistic investigation on the initial stage of growth and interface formation of Fe on H-terminated Si(111)-(1 × 1) surface

Ryo Kawaguchi; Toyoaki Eguchi; Shozo Suto

doi:10.1016/j.susc.2019.04.002

Atomistic investigation on the initial stage of growth and interface formation of Fe on H-terminated Si(111)-(1 × 1) surface

Ryo Kawaguchi, Toyoaki Eguchi, Shozo Suto

SCI - Physics

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

1 Citation (Scopus)

Abstract

The initial growth process of a Fe thin film on a hydrogen-terminated Si(111)-(1 × 1) surface is investigated through direct atomic scale measurements by using scanning tunneling microscopy (STM) and spectroscopy (STS). By depositing Fe onto the substrate at room temperature, nanometer-size Fe clusters having a (111)-oriented body-centered-cubic structure are formed on the substrate surface with maintaining the (1 × 1) structure. As the clusters grow, hill-like structures composed of {110} nano-facets appear on the surface of the Fe clusters. In the empty-state STM image, a depression of the substrate surface is observed at the periphery of a Fe nanocluster. The depression indicates the formation of a Schottky junction between the Fe nanocluster and the substrate surface.

Original language	English
Pages (from-to)	52-57
Number of pages	6
Journal	Surface Science
Volume	686
DOIs	https://doi.org/10.1016/j.susc.2019.04.002
Publication status	Published - 2019 Aug

Keywords

H-terminated Si(111)
Iron
Local band bending
Nanocluster
Scanning tunneling microscopy and spectroscopy
Thin film growth

ASJC Scopus subject areas

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

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title = "Atomistic investigation on the initial stage of growth and interface formation of Fe on H-terminated Si(111)-(1 × 1) surface",

abstract = "The initial growth process of a Fe thin film on a hydrogen-terminated Si(111)-(1 × 1) surface is investigated through direct atomic scale measurements by using scanning tunneling microscopy (STM) and spectroscopy (STS). By depositing Fe onto the substrate at room temperature, nanometer-size Fe clusters having a (111)-oriented body-centered-cubic structure are formed on the substrate surface with maintaining the (1 × 1) structure. As the clusters grow, hill-like structures composed of {110} nano-facets appear on the surface of the Fe clusters. In the empty-state STM image, a depression of the substrate surface is observed at the periphery of a Fe nanocluster. The depression indicates the formation of a Schottky junction between the Fe nanocluster and the substrate surface.",

keywords = "H-terminated Si(111), Iron, Local band bending, Nanocluster, Scanning tunneling microscopy and spectroscopy, Thin film growth",

author = "Ryo Kawaguchi and Toyoaki Eguchi and Shozo Suto",

year = "2019",

month = aug,

doi = "10.1016/j.susc.2019.04.002",

language = "English",

volume = "686",

pages = "52--57",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier",

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TY - JOUR

T1 - Atomistic investigation on the initial stage of growth and interface formation of Fe on H-terminated Si(111)-(1 × 1) surface

AU - Kawaguchi, Ryo

AU - Eguchi, Toyoaki

AU - Suto, Shozo

PY - 2019/8

Y1 - 2019/8

N2 - The initial growth process of a Fe thin film on a hydrogen-terminated Si(111)-(1 × 1) surface is investigated through direct atomic scale measurements by using scanning tunneling microscopy (STM) and spectroscopy (STS). By depositing Fe onto the substrate at room temperature, nanometer-size Fe clusters having a (111)-oriented body-centered-cubic structure are formed on the substrate surface with maintaining the (1 × 1) structure. As the clusters grow, hill-like structures composed of {110} nano-facets appear on the surface of the Fe clusters. In the empty-state STM image, a depression of the substrate surface is observed at the periphery of a Fe nanocluster. The depression indicates the formation of a Schottky junction between the Fe nanocluster and the substrate surface.

AB - The initial growth process of a Fe thin film on a hydrogen-terminated Si(111)-(1 × 1) surface is investigated through direct atomic scale measurements by using scanning tunneling microscopy (STM) and spectroscopy (STS). By depositing Fe onto the substrate at room temperature, nanometer-size Fe clusters having a (111)-oriented body-centered-cubic structure are formed on the substrate surface with maintaining the (1 × 1) structure. As the clusters grow, hill-like structures composed of {110} nano-facets appear on the surface of the Fe clusters. In the empty-state STM image, a depression of the substrate surface is observed at the periphery of a Fe nanocluster. The depression indicates the formation of a Schottky junction between the Fe nanocluster and the substrate surface.

KW - H-terminated Si(111)

KW - Iron

KW - Local band bending

KW - Nanocluster

KW - Scanning tunneling microscopy and spectroscopy

KW - Thin film growth

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JO - Surface Science

JF - Surface Science

SN - 0039-6028

ER -

Atomistic investigation on the initial stage of growth and interface formation of Fe on H-terminated Si(111)-(1 × 1) surface

Abstract

Keywords

ASJC Scopus subject areas

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Cite this

Atomistic investigation on the initial stage of growth and interface formation of Fe on H-terminated Si(111)-(1 × 1) surface