<div class="csl-bib-body">
<div class="csl-entry">Steiner, S., Michor, H., Sologub, O., Hinterleitner, B., Höfenstock, F., Waas, M., Bauer, E., Stöger, B., Babizhetskyy, V., Levytskyy, V., & Kotur, B. (2018). Single-crystal study of the charge density wave metal LuNiC₂. <i>Physical Review B</i>, <i>97</i>(205115). https://doi.org/10.1103/physrevb.97.205115</div>
</div>
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dc.identifier.issn
2469-9950
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/145026
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dc.description.abstract
We report on single-crystal growth, single-crystal x-ray diffraction, physical properties, and density functional theory (DFT) electronic structure as well as Fermi surface calculations for two ternary carbides, LuCoC2 and LuNiC2. Electrical resistivity measurements reveal for LuNiC2 a charge density wave (CDW) transition at TCDW= 450 K and, for T >TCDW, a significant anisotropy of the electrical resistivity, which is lowest along the orthorhombic a-axis. The analysis of x-ray superstructure reflections suggest a commensurate CDW state with a Peierls-type distortion of the Ni atom periodicity along the orthorhombic a axis. DFT calculations based on the CDW modulated monoclinic structure model of LuNiC2 as compared to results of the orthorhombic parent type reveal the formation of a partial CDW gap at the Fermi level which reduces the electronic density of states from N(EF) = 1.03 states/eV f.u. without CDW to N(EF) = 0.46 states/eV f.u. in the CDW state. The corresponding bare DFT Sommerfeld value of the latter, γCDWDFT= 0.90 mJ/molK2, reaches reasonable agreement with the experimental value γ = 0.83(5) mJ/molK2 of LuNiC2. LuCoC2 displays a simple metallic behavior with neither CDW ordering nor superconductivity above 0.4 K. Its experimental Sommerfeld coefficient, γ = 5.9(1) mJ/molK2, is in realistic correspondence with the calculated, bare Sommerfeld coefficient, γDFT = 3.82 mJ/molK2, of orthorhombic LuCoC2.
en
dc.language.iso
en
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dc.publisher
AMER PHYSICAL SOC
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dc.relation.ispartof
Physical Review B
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dc.subject
Charge density waves
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dc.subject
Electronic structure
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dc.subject
Fermi surface
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dc.title
Single-crystal study of the charge density wave metal LuNiC₂
en
dc.type
Artikel
de
dc.type
Article
en
dc.type.category
Original Research Article
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tuw.container.volume
97
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tuw.container.issue
205115
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tuw.journal.peerreviewed
true
-
tuw.peerreviewed
true
-
wb.publication.intCoWork
International Co-publication
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tuw.researchTopic.id
M3
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tuw.researchTopic.name
Metallic Materials
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tuw.researchTopic.value
100
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dcterms.isPartOf.title
Physical Review B
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tuw.publication.orgunit
E138-03 - Forschungsbereich Functional and Magnetic Materials
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tuw.publication.orgunit
E057-04 - Fachbereich Röntgenzentrum
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tuw.publication.orgunit
E138-50 - Services des Instituts
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tuw.publisher.doi
10.1103/physrevb.97.205115
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dc.identifier.eissn
2469-9969
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dc.description.numberOfPages
11
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wb.sci
true
-
wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch.oefos
1030
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wb.facultyfocus
Physik der Materie
de
wb.facultyfocus
Physics of Matter
en
wb.facultyfocus.faculty
E130
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item.cerifentitytype
Publications
-
item.cerifentitytype
Publications
-
item.openairecristype
http://purl.org/coar/resource_type/c_18cf
-
item.openairecristype
http://purl.org/coar/resource_type/c_18cf
-
item.fulltext
no Fulltext
-
item.grantfulltext
none
-
item.languageiso639-1
en
-
item.openairetype
Artikel
-
item.openairetype
Article
-
crisitem.author.dept
E057-09 - Fachbereich VSC Research Center
-
crisitem.author.dept
E138-03 - Forschungsbereich Functional and Magnetic Materials
-
crisitem.author.dept
E138-03 - Forschungsbereich Functional and Magnetic Materials
-
crisitem.author.dept
E138-50-3 - Fachgruppe Technische Assistenz
-
crisitem.author.dept
E138-03 - Forschungsbereich Functional and Magnetic Materials