<div class="csl-bib-body">
<div class="csl-entry">Ugeda, M. M., Bradley, A. J., Zhang, Y., Onishi, S., Chen, Y., Ruan, W., Ojeda-Aristizabal, C., Ryu, H., Edmonds, M. T., Tsai, H.-Z., Riss, A., Mo, S.-K., Lee, D., Zettl, A., Hussain, Z., Shen, Z.-X., & Crommie, M. F. (2016). Characterization of collective ground states in single-layer NbSe₂. <i>Nature Physics</i>, <i>12</i>(1), 92–97. https://doi.org/10.1038/nphys3527</div>
</div>
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dc.identifier.issn
1745-2473
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/148383
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dc.description.abstract
Layered transition metal dichalcogenides are ideal systems for exploring the e ects of dimensionality on correlated electronic
phases such as charge density wave (CDW) order and superconductivity. In bulk NbSe2 a CDW sets in at TCDWD33 K and
superconductivity sets in at TcD7.2 K. Below Tc these electronic states coexist but their microscopic formation mechanisms
remain controversial. Here we present an electronic characterization study of a single two-dimensional (2D) layer of
NbSe2 by means of low-temperature scanning tunnelling microscopy/spectroscopy (STM/STS), angle-resolved photoemission
spectroscopy (ARPES), and electrical transport measurements.We demonstrate that 3 3 CDWorder in NbSe2 remains intact
in two dimensions. Superconductivity also still remains in the 2D limit, but its onset temperature is depressed to 1.9 K. Our
STS measurements at 5 K reveal a CDW gap of D4meV at the Fermi energy, which is accessible by means of STS owing to
the removal of bands crossing the Fermi level for a single layer. Our observations are consistent with the simplified (compared
to bulk) electronic structure of single-layer NbSe2, thus providing insight into CDW formation and superconductivity in this
model strongly correlated system.
en
dc.language.iso
en
-
dc.publisher
NATURE PORTFOLIO
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dc.relation.ispartof
Nature Physics
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dc.subject
General Physics and Astronomy
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dc.title
Characterization of collective ground states in single-layer NbSe₂
en
dc.type
Artikel
de
dc.type
Article
en
dc.description.startpage
92
-
dc.description.endpage
97
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dc.type.category
Original Research Article
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tuw.container.volume
12
-
tuw.container.issue
1
-
tuw.journal.peerreviewed
true
-
tuw.peerreviewed
true
-
tuw.researchTopic.id
M2
-
tuw.researchTopic.name
Materials Characterization
-
tuw.researchTopic.value
100
-
dcterms.isPartOf.title
Nature Physics
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tuw.publication.orgunit
E134-05 - Forschungsbereich Surface Physics
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tuw.publisher.doi
10.1038/nphys3527
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dc.identifier.eissn
1745-2481
-
dc.description.numberOfPages
6
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tuw.author.orcid
0000-0003-1204-8717
-
wb.sci
true
-
wb.sciencebranch
Physik, Astronomie
-
wb.sciencebranch.oefos
1030
-
wb.facultyfocus
Physikalische Technologie
de
wb.facultyfocus
Physical Technology
en
wb.facultyfocus.faculty
E130
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item.openairetype
Artikel
-
item.openairetype
Article
-
item.cerifentitytype
Publications
-
item.cerifentitytype
Publications
-
item.languageiso639-1
en
-
item.grantfulltext
none
-
item.openairecristype
http://purl.org/coar/resource_type/c_18cf
-
item.openairecristype
http://purl.org/coar/resource_type/c_18cf
-
item.fulltext
no Fulltext
-
crisitem.author.dept
E138-03 - Forschungsbereich Functional and Magnetic Materials