Cell model of Si (111)7 × 7 structure

T. Kato; Y. Saigo; M. Uchibe; H. Tochihara; W. Shimada

doi:10.1016/S0039-6028(98)00529-9

Cell model of Si (111)7 × 7 structure

T. Kato^*, Y. Saigo, M. Uchibe, H. Tochihara, W. Shimada

^*Corresponding author for this work

Department of Natural and Environmental Science

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

8 Scopus citations

Abstract

The phase transition of the Si(111)7 × 7 structure and its growth on a quenched surface are investigated theoretically. The surface structure is described in terms of states of faulted and unfaulted triangular halves of the 7 × 7 unit cell. A model Hamiltonian which satisfies peculiar features of the structure is derived. The Monte-Carlo simulation for this model shows that the 7 × 7 structure undergoes the first-order phase transition. Growth patterns of the 7 × 7 structure on the quenched surface are calculated with the same parameters and they reproduce characteristic features of experimental results. The calculation also qualitatively reproduces the temperature dependence of the critical nucleus size for the 7 × 7 domain growth on the quenched terrace.

Original language	English
Pages (from-to)	112-120
Number of pages	9
Journal	Surface Science
Volume	416
Issue number	1-2
DOIs	https://doi.org/10.1016/S0039-6028(98)00529-9
State	Published - 1998/10/19

Keywords

Computer simulation
Model of surface kinetics
Si(111)
Surface phase transition
Surface reconstruction
Surface structure

ASJC Scopus subject areas

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

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10.1016/S0039-6028(98)00529-9

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title = "Cell model of Si (111)7 × 7 structure",

abstract = "The phase transition of the Si(111)7 × 7 structure and its growth on a quenched surface are investigated theoretically. The surface structure is described in terms of states of faulted and unfaulted triangular halves of the 7 × 7 unit cell. A model Hamiltonian which satisfies peculiar features of the structure is derived. The Monte-Carlo simulation for this model shows that the 7 × 7 structure undergoes the first-order phase transition. Growth patterns of the 7 × 7 structure on the quenched surface are calculated with the same parameters and they reproduce characteristic features of experimental results. The calculation also qualitatively reproduces the temperature dependence of the critical nucleus size for the 7 × 7 domain growth on the quenched terrace.",

keywords = "Computer simulation, Model of surface kinetics, Si(111), Surface phase transition, Surface reconstruction, Surface structure",

author = "T. Kato and Y. Saigo and M. Uchibe and H. Tochihara and W. Shimada",

note = "Funding Information: This work is supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports, and Culture.",

year = "1998",

month = oct,

day = "19",

doi = "10.1016/S0039-6028(98)00529-9",

language = "英語",

volume = "416",

pages = "112--120",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier B.V.",

number = "1-2",

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TY - JOUR

T1 - Cell model of Si (111)7 × 7 structure

AU - Kato, T.

AU - Saigo, Y.

AU - Uchibe, M.

AU - Tochihara, H.

AU - Shimada, W.

N1 - Funding Information: This work is supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports, and Culture.

PY - 1998/10/19

Y1 - 1998/10/19

N2 - The phase transition of the Si(111)7 × 7 structure and its growth on a quenched surface are investigated theoretically. The surface structure is described in terms of states of faulted and unfaulted triangular halves of the 7 × 7 unit cell. A model Hamiltonian which satisfies peculiar features of the structure is derived. The Monte-Carlo simulation for this model shows that the 7 × 7 structure undergoes the first-order phase transition. Growth patterns of the 7 × 7 structure on the quenched surface are calculated with the same parameters and they reproduce characteristic features of experimental results. The calculation also qualitatively reproduces the temperature dependence of the critical nucleus size for the 7 × 7 domain growth on the quenched terrace.

AB - The phase transition of the Si(111)7 × 7 structure and its growth on a quenched surface are investigated theoretically. The surface structure is described in terms of states of faulted and unfaulted triangular halves of the 7 × 7 unit cell. A model Hamiltonian which satisfies peculiar features of the structure is derived. The Monte-Carlo simulation for this model shows that the 7 × 7 structure undergoes the first-order phase transition. Growth patterns of the 7 × 7 structure on the quenched surface are calculated with the same parameters and they reproduce characteristic features of experimental results. The calculation also qualitatively reproduces the temperature dependence of the critical nucleus size for the 7 × 7 domain growth on the quenched terrace.

KW - Computer simulation

KW - Model of surface kinetics

KW - Si(111)

KW - Surface phase transition

KW - Surface reconstruction

KW - Surface structure

UR - http://www.scopus.com/inward/record.url?scp=0032178933&partnerID=8YFLogxK

U2 - 10.1016/S0039-6028(98)00529-9

DO - 10.1016/S0039-6028(98)00529-9

M3 - 学術論文

AN - SCOPUS:0032178933

SN - 0039-6028

VL - 416

SP - 112

EP - 120

JO - Surface Science

JF - Surface Science

IS - 1-2

ER -

Cell model of Si (111)7 × 7 structure

Abstract

Keywords

ASJC Scopus subject areas

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