Linked Life Data

17408295

Source:http://linkedlifedata.com/resource/pubmed/id/17408295

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2007-5-1
pubmed:abstractText
Practical protocols are presented to reproducibly prepare micrometer-sized Au(111) substrates. Au(111) terraces of micrometer dimensions and atomic smoothness were crystallized by flame-annealing vacuum-deposited gold films on glass and on millimetric amorphous gold shots. Gold films and shots that were slowly cooled in a moderately applied stream of nitrogen gas exhibited large and stable crystal surfaces with Au(111) morphologies. Similarly, flame-annealed gold samples cooled with another protocol--in much rougher streams of nitrogen gas--produced morphologically unstable and highly mobile Au(111) layers. Within the first hour after preparation, however, rapid microscale restructuring in the layers produced complex morphologies of hexagonal channel networks and islands that were predominantly triangular. These channeled gold layers fused slowly in the following hours, with velocities of 0.01-0.2 A/s, as quantified by digital image correlation (DIC). Atomically smooth, stable, and predominantly triangular Au(111) terraces on the scale of micrometers were observed approximately 24 h after the sample preparations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0743-7463
pubmed:author
pubmed:issnType
Print
pubmed:day
8
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5459-65
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Formation and healing of micrometer-sized channel networks on highly mobile Au(111) surfaces.
pubmed:affiliation
Department of Physics, University of California, Santa Barbara, California 93106, USA. lauermat@physics.ucsb.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't