Atomic structure of the Ag/Ge(111)-(√3x√3) surface: From STM observation to theoretical study

L. W. Chou; H. C. Wu; Y. R. Lee; J. C. Jiang; C. Su; J. C. Lin

doi:10.1109/INEC.2010.5424668

Atomic structure of the Ag/Ge(111)-(√3x√3) surface: From STM observation to theoretical study

L. W. Chou
, H. C. Wu
, Y. R. Lee
, J. C. Jiang
, C. Su^*
, J. C. Lin

^*Corresponding author for this work

Academia Sinica - Institute of Atomic and Molecular Sciences
National Taiwan University of Science and Technology
National Taiwan Normal University
National Taipei University of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The atomic structure of the Ag /Ge(111)-(√3x√3)R30° surface is studied by scanning tunneling microscopy (STM) and the density functional theory (DFT) calculations. Our STM images have shown a structure which is different from the widely accepted honeycomb-chainedtriangle (HCT) model before. The structure is similar to the inequivlent triangle (IET) model found for theAg /Si(111)-(√3x√3)R30° surface. This model proposed two types of silver triangles with different sizes in the unit cell, corresponding to the bright spots and the dark spots in the STM image. A distinguishable hexagonal pattern of the IET structure was well disclosed in the temperature range from 100 K to 473 K in our STM studies forAg /Ge(111)-(√3x√3) R30°. Furthermore, the result of the density functional theory (DFT) calculations showed that the IET structure is 0.20 eV energetically more stable than the HCT model. Besides, the Ge triangles, which were not disclosed in earlier STM research, are found in this study.

Original language	English
Title of host publication	INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings
Pages	658-659
Number of pages	2
DOIs	https://doi.org/10.1109/INEC.2010.5424668
State	Published - 2010
Externally published	Yes
Event	2010 3rd International Nanoelectronics Conference, INEC 2010 - Hongkong, China Duration: 03 01 2010 → 08 01 2010

Publication series

Name	INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings

Conference

Conference	2010 3rd International Nanoelectronics Conference, INEC 2010
Country/Territory	China
City	Hongkong
Period	03/01/10 → 08/01/10

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10.1109/INEC.2010.5424668

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Chou, L. W., Wu, H. C., Lee, Y. R., Jiang, J. C., Su, C., & Lin, J. C. (2010). Atomic structure of the Ag/Ge(111)-(√3x√3) surface: From STM observation to theoretical study. In INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings (pp. 658-659). Article 5424668 (INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings). https://doi.org/10.1109/INEC.2010.5424668

@inproceedings{7c4bc281fbc84f9180af74b218aa5f1b,

title = "Atomic structure of the Ag/Ge(111)-(√3x√3) surface: From STM observation to theoretical study",

abstract = "The atomic structure of the Ag /Ge(111)-(√3x√3)R30° surface is studied by scanning tunneling microscopy (STM) and the density functional theory (DFT) calculations. Our STM images have shown a structure which is different from the widely accepted honeycomb-chainedtriangle (HCT) model before. The structure is similar to the inequivlent triangle (IET) model found for theAg /Si(111)-(√3x√3)R30° surface. This model proposed two types of silver triangles with different sizes in the unit cell, corresponding to the bright spots and the dark spots in the STM image. A distinguishable hexagonal pattern of the IET structure was well disclosed in the temperature range from 100 K to 473 K in our STM studies forAg /Ge(111)-(√3x√3) R30°. Furthermore, the result of the density functional theory (DFT) calculations showed that the IET structure is 0.20 eV energetically more stable than the HCT model. Besides, the Ge triangles, which were not disclosed in earlier STM research, are found in this study.",

author = "Chou, \{L. W.\} and Wu, \{H. C.\} and Lee, \{Y. R.\} and Jiang, \{J. C.\} and C. Su and Lin, \{J. C.\}",

year = "2010",

doi = "10.1109/INEC.2010.5424668",

language = "英语",

isbn = "9781424435449",

series = "INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings",

pages = "658--659",

booktitle = "INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings",

note = "2010 3rd International Nanoelectronics Conference, INEC 2010 ; Conference date: 03-01-2010 Through 08-01-2010",

}

Chou, LW, Wu, HC, Lee, YR, Jiang, JC, Su, C & Lin, JC 2010, Atomic structure of the Ag/Ge(111)-(√3x√3) surface: From STM observation to theoretical study. in INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings., 5424668, INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings, pp. 658-659, 2010 3rd International Nanoelectronics Conference, INEC 2010, Hongkong, China, 03/01/10. https://doi.org/10.1109/INEC.2010.5424668

Atomic structure of the Ag/Ge(111)-(√3x√3) surface: From STM observation to theoretical study. / Chou, L. W.; Wu, H. C.; Lee, Y. R. et al.
INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings. 2010. p. 658-659 5424668 (INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Atomic structure of the Ag/Ge(111)-(√3x√3) surface

T2 - 2010 3rd International Nanoelectronics Conference, INEC 2010

AU - Chou, L. W.

AU - Wu, H. C.

AU - Lee, Y. R.

AU - Jiang, J. C.

AU - Su, C.

AU - Lin, J. C.

PY - 2010

Y1 - 2010

N2 - The atomic structure of the Ag /Ge(111)-(√3x√3)R30° surface is studied by scanning tunneling microscopy (STM) and the density functional theory (DFT) calculations. Our STM images have shown a structure which is different from the widely accepted honeycomb-chainedtriangle (HCT) model before. The structure is similar to the inequivlent triangle (IET) model found for theAg /Si(111)-(√3x√3)R30° surface. This model proposed two types of silver triangles with different sizes in the unit cell, corresponding to the bright spots and the dark spots in the STM image. A distinguishable hexagonal pattern of the IET structure was well disclosed in the temperature range from 100 K to 473 K in our STM studies forAg /Ge(111)-(√3x√3) R30°. Furthermore, the result of the density functional theory (DFT) calculations showed that the IET structure is 0.20 eV energetically more stable than the HCT model. Besides, the Ge triangles, which were not disclosed in earlier STM research, are found in this study.

AB - The atomic structure of the Ag /Ge(111)-(√3x√3)R30° surface is studied by scanning tunneling microscopy (STM) and the density functional theory (DFT) calculations. Our STM images have shown a structure which is different from the widely accepted honeycomb-chainedtriangle (HCT) model before. The structure is similar to the inequivlent triangle (IET) model found for theAg /Si(111)-(√3x√3)R30° surface. This model proposed two types of silver triangles with different sizes in the unit cell, corresponding to the bright spots and the dark spots in the STM image. A distinguishable hexagonal pattern of the IET structure was well disclosed in the temperature range from 100 K to 473 K in our STM studies forAg /Ge(111)-(√3x√3) R30°. Furthermore, the result of the density functional theory (DFT) calculations showed that the IET structure is 0.20 eV energetically more stable than the HCT model. Besides, the Ge triangles, which were not disclosed in earlier STM research, are found in this study.

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DO - 10.1109/INEC.2010.5424668

M3 - 会议稿件

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SN - 9781424435449

T3 - INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings

SP - 658

EP - 659

BT - INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings

Y2 - 3 January 2010 through 8 January 2010

ER -

Atomic structure of the Ag/Ge(111)-(√3x√3) surface: From STM observation to theoretical study

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