Direct Observation of "pac-Man" Coarsening

X. X. Yu; A. Gulec; A. Yoon; J. M. Zuo; P. W. Voorhees; L. D. Marks

doi:10.1021/acs.nanolett.7b01137

Direct Observation of "pac-Man" Coarsening

X. X. Yu, A. Gulec, A. Yoon, J. M. Zuo, P. W. Voorhees, L. D. Marks

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

Abstract

We report direct observation of a "Pac-Man" like coarsening mechanism of a self-supporting thin film of nickel oxide. The ultrathin film has an intrinsic morphological instability due to surface stress leading to the development of local thicker regions at step edges. Density functional theory calculations and continuum modeling of the elastic instability support the model for the process.

Original language	English (US)
Pages (from-to)	4661-4664
Number of pages	4
Journal	Nano letters
Volume	17
Issue number	8
DOIs	https://doi.org/10.1021/acs.nanolett.7b01137
State	Published - Aug 9 2017

Keywords

Oxide
coarsening
environmental TEM
in situ
thin film

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

Online availability

10.1021/acs.nanolett.7b01137

Library availability

Discover UIUC Full Text

Cite this

@article{5a3af4027f954b51b4d298b219f7ceaf,

title = "Direct Observation of {"}pac-Man{"} Coarsening",

abstract = "We report direct observation of a {"}Pac-Man{"} like coarsening mechanism of a self-supporting thin film of nickel oxide. The ultrathin film has an intrinsic morphological instability due to surface stress leading to the development of local thicker regions at step edges. Density functional theory calculations and continuum modeling of the elastic instability support the model for the process.",

keywords = "Oxide, coarsening, environmental TEM, in situ, thin film",

author = "Yu, {X. X.} and A. Gulec and A. Yoon and Zuo, {J. M.} and Voorhees, {P. W.} and Marks, {L. D.}",

note = "Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2017",

month = aug,

day = "9",

doi = "10.1021/acs.nanolett.7b01137",

language = "English (US)",

volume = "17",

pages = "4661--4664",

journal = "Nano letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "8",

}

TY - JOUR

T1 - Direct Observation of "pac-Man" Coarsening

AU - Yu, X. X.

AU - Gulec, A.

AU - Yoon, A.

AU - Zuo, J. M.

AU - Voorhees, P. W.

AU - Marks, L. D.

PY - 2017/8/9

Y1 - 2017/8/9

N2 - We report direct observation of a "Pac-Man" like coarsening mechanism of a self-supporting thin film of nickel oxide. The ultrathin film has an intrinsic morphological instability due to surface stress leading to the development of local thicker regions at step edges. Density functional theory calculations and continuum modeling of the elastic instability support the model for the process.

AB - We report direct observation of a "Pac-Man" like coarsening mechanism of a self-supporting thin film of nickel oxide. The ultrathin film has an intrinsic morphological instability due to surface stress leading to the development of local thicker regions at step edges. Density functional theory calculations and continuum modeling of the elastic instability support the model for the process.

KW - Oxide

KW - coarsening

KW - environmental TEM

KW - in situ

KW - thin film

UR - http://www.scopus.com/inward/record.url?scp=85027114569&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85027114569&partnerID=8YFLogxK

U2 - 10.1021/acs.nanolett.7b01137

DO - 10.1021/acs.nanolett.7b01137

M3 - Article

C2 - 28700241

AN - SCOPUS:85027114569

SN - 1530-6984

VL - 17

SP - 4661

EP - 4664

JO - Nano letters

JF - Nano letters

IS - 8

ER -

Direct Observation of "pac-Man" Coarsening

Abstract

Keywords

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this