Zur Kurzanzeige

dc.contributor.author
Guin, Laurent
dc.contributor.author
Jabbour, Michel E.
dc.contributor.author
Triantafyllidis, Nicolas
dc.date.accessioned
2021-08-27T08:51:02Z
dc.date.available
2021-08-27T03:01:56Z
dc.date.available
2021-08-27T08:51:02Z
dc.date.issued
2021-11
dc.identifier.issn
0022-5096
dc.identifier.issn
1873-4782
dc.identifier.other
10.1016/j.jmps.2021.104574
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/502431
dc.identifier.doi
10.3929/ethz-b-000502431
dc.description.abstract
Epitaxial growth on a surface vicinal to a high-symmetry crystallographic plane occurs through the propagation of atomic steps, a process called step-flow growth. In some instances, the steps tend to form close groups (or bunches), a phenomenon termed step bunching, which corresponds to an instability of the equal-spacing step propagation. Over the last fifty years, various mechanisms have been proposed to explain step bunching, the most prominent of which are the inverse Ehrlich–Schwoebel effect (i.e., the asymmetry which favors the attachment of adatoms from the upper terrace), elastically mediated interactions between steps (in heteroepitaxy), step permeability (in electromigration-controlled growth), and the chemical effect (which couples the diffusion fields on all terraces). Beyond the discussion of the influence of each of these mechanisms taken independently on the propensity to bunching, we propose a unified treatment of the effect of these mechanisms on the onset of the bunching instability, which also accounts for their interplay. This is done in the setting of the so-called quasistatic approximation, which by permitting mostly analytical treatment, offers a clear view of the influence on stability of the combined mechanisms. In particular, we find that the Ehrlich–Schwoebel effect, elastic step-interactions and the chemical effect combine in a quasi-additive fashion, whereas step permeability is neither stabilizing nor destabilizing per se but changes the relative influence of the three aforementioned mechanisms. In a companion paper, we demonstrate and discuss the importance of another mechanism, which we call the dynamics effect, that emerges when relaxing the simplifying but questionable quasistatic approximation.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject
A. Crystal growth
en_US
dc.subject
A. Morphological instability
en_US
dc.subject
A. Step bunching
en_US
dc.subject
C. Stability and bifurcation
en_US
dc.subject
C. Quasistatic approximation
en_US
dc.title
Revisiting step instabilities on crystal surfaces. Part I: The quasistatic approximation
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
dc.date.published
2021-08-04
ethz.journal.title
Journal of the Mechanics and Physics of Solids
ethz.journal.volume
156
en_US
ethz.journal.abbreviated
J. Mech. Phys. Solids
ethz.pages.start
104574
en_US
ethz.size
18 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Kidlington
en_US
ethz.publication.status
published
en_US
ethz.relation.isContinuedBy
20.500.11850/500805
ethz.date.deposited
2021-08-27T03:01:59Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-08-27T08:51:27Z
ethz.rosetta.lastUpdated
2022-03-29T11:20:14Z
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Revisiting%20step%20instabilities%20on%20crystal%20surfaces.%20Part%20I:%20The%20quasistatic%20approximation&rft.jtitle=Journal%20of%20the%20Mechanics%20and%20Physics%20of%20Solids&rft.date=2021-11&rft.volume=156&rft.spage=104574&rft.issn=0022-5096&1873-4782&rft.au=Guin,%20Laurent&Jabbour,%20Michel%20E.&Triantafyllidis,%20Nicolas&rft.genre=article&rft_id=info:doi/10.1016/j.jmps.2021.104574&
 Printexemplar via ETH-Bibliothek suchen

Dateien zu diesem Eintrag

Thumbnail

Publikationstyp

Zur Kurzanzeige