Dynamics of the wetting-induced nanowire reconstruction of Au/Ge(001)

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)

Abstract

We have used low-energy electron microscopy and scanning tunneling microscopy to visualize the dynamics of the formation of one-dimensional Au-induced nanowires on a Ge(001) substrate. At low temperature, the growth of nanowire domains is limited by the diffusion of Au. A wetting-dewetting transition occurs at a temperature of 665 K that transforms nanowire domains into three-dimensional Au clusters. Dewetting occurs at temperatures above 665 K and is fully reversible during repetitive heating and cooling cycles. The decay and growth rates of the nanowire domains below 665 K show intriguing dynamics, caused by the complex diffusion of gold. It correlates directly with the diffracted intensity of a reconstruction along the top of the nanowires, indicating a temperature-dependent potential landscape for the thermally activated diffusion of Au atoms across nanowire domains.
Original languageEnglish
Article number085415
Pages (from-to)085415-1-085415-5
Number of pages5
JournalPhysical review B: Condensed matter and materials physics
Volume88
Issue number8
DOIs
Publication statusPublished - 2013

Fingerprint

wetting
Nanowires
Wetting
nanowires
drying
Temperature
Scanning tunneling microscopy
Gold
Electron microscopy
decay rates
temperature
scanning tunneling microscopy
electron microscopy
gold
Cooling
cooling
Heating
Atoms
cycles
heating

Keywords

  • METIS-298049
  • IR-89990

Cite this

@article{2c85a1afe0504fa1af3af160a1bf92c9,
title = "Dynamics of the wetting-induced nanowire reconstruction of Au/Ge(001)",
abstract = "We have used low-energy electron microscopy and scanning tunneling microscopy to visualize the dynamics of the formation of one-dimensional Au-induced nanowires on a Ge(001) substrate. At low temperature, the growth of nanowire domains is limited by the diffusion of Au. A wetting-dewetting transition occurs at a temperature of 665 K that transforms nanowire domains into three-dimensional Au clusters. Dewetting occurs at temperatures above 665 K and is fully reversible during repetitive heating and cooling cycles. The decay and growth rates of the nanowire domains below 665 K show intriguing dynamics, caused by the complex diffusion of gold. It correlates directly with the diffracted intensity of a reconstruction along the top of the nanowires, indicating a temperature-dependent potential landscape for the thermally activated diffusion of Au atoms across nanowire domains.",
keywords = "METIS-298049, IR-89990",
author = "A. Safaei and {van Houselt}, Arie and Bene Poelsema and Zandvliet, {Henricus J.W.} and {van Gastel}, Raoul",
year = "2013",
doi = "10.1103/PhysRevB.88.085415",
language = "English",
volume = "88",
pages = "085415--1--085415--5",
journal = "Physical review B: Condensed matter and materials physics",
issn = "1098-0121",
publisher = "American Physical Society",
number = "8",

}

Dynamics of the wetting-induced nanowire reconstruction of Au/Ge(001). / Safaei, A.; van Houselt, Arie; Poelsema, Bene; Zandvliet, Henricus J.W.; van Gastel, Raoul.

In: Physical review B: Condensed matter and materials physics, Vol. 88, No. 8, 085415, 2013, p. 085415-1-085415-5.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Dynamics of the wetting-induced nanowire reconstruction of Au/Ge(001)

AU - Safaei, A.

AU - van Houselt, Arie

AU - Poelsema, Bene

AU - Zandvliet, Henricus J.W.

AU - van Gastel, Raoul

PY - 2013

Y1 - 2013

N2 - We have used low-energy electron microscopy and scanning tunneling microscopy to visualize the dynamics of the formation of one-dimensional Au-induced nanowires on a Ge(001) substrate. At low temperature, the growth of nanowire domains is limited by the diffusion of Au. A wetting-dewetting transition occurs at a temperature of 665 K that transforms nanowire domains into three-dimensional Au clusters. Dewetting occurs at temperatures above 665 K and is fully reversible during repetitive heating and cooling cycles. The decay and growth rates of the nanowire domains below 665 K show intriguing dynamics, caused by the complex diffusion of gold. It correlates directly with the diffracted intensity of a reconstruction along the top of the nanowires, indicating a temperature-dependent potential landscape for the thermally activated diffusion of Au atoms across nanowire domains.

AB - We have used low-energy electron microscopy and scanning tunneling microscopy to visualize the dynamics of the formation of one-dimensional Au-induced nanowires on a Ge(001) substrate. At low temperature, the growth of nanowire domains is limited by the diffusion of Au. A wetting-dewetting transition occurs at a temperature of 665 K that transforms nanowire domains into three-dimensional Au clusters. Dewetting occurs at temperatures above 665 K and is fully reversible during repetitive heating and cooling cycles. The decay and growth rates of the nanowire domains below 665 K show intriguing dynamics, caused by the complex diffusion of gold. It correlates directly with the diffracted intensity of a reconstruction along the top of the nanowires, indicating a temperature-dependent potential landscape for the thermally activated diffusion of Au atoms across nanowire domains.

KW - METIS-298049

KW - IR-89990

U2 - 10.1103/PhysRevB.88.085415

DO - 10.1103/PhysRevB.88.085415

M3 - Article

VL - 88

SP - 085415-1-085415-5

JO - Physical review B: Condensed matter and materials physics

JF - Physical review B: Condensed matter and materials physics

SN - 1098-0121

IS - 8

M1 - 085415

ER -