his.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Dynamically screened Coulomb interaction in the parent compounds of hole-doped cuprates: Trends and exceptions
Lund University.
University of Skövde, School of Engineering Science. University of Skövde, The Virtual Systems Research Centre. (Physics and Mathematics)ORCID iD: 0000-0002-7023-4043
Lund University.
2019 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 99, no 7, p. 1-9, article id 075135Article in journal (Refereed) Published
Abstract [en]

Although cuprate high-temperature superconductors were discovered already in 1986 the origin of the pairing mechanism remains elusive. While the doped compounds are superconducting with high transition temperatures T-c, the undoped compounds are insulating due to the strong effective Coulomb interaction between the Cu 3d holes. We investigate the dependence of the maximum superconducting transition temperature T-cmax on the on-site effective Coulomb interaction U using the constrained random-phase approximation. We focus on the commonly used one-band model of the cuprates, including only the antibonding combination of the Cu d(x2-y2) and O p(x) and p(y) orbitals and find a screening-dependent trend between the static value of U and T-cmax for the parent compounds of a large number of hole-doped cuprates. Our results suggest that superconductivity may be favored by a large on-site Coulomb repulsion. We analyze both the trend in the static value of U and its frequency dependence in detail and, by comparing our results to other works, speculate on the mechanisms behind the trend.

Place, publisher, year, edition, pages
2019. Vol. 99, no 7, p. 1-9, article id 075135
Keywords [en]
CRYSTAL-STRUCTURE, SUPERCONDUCTIVITY, TEMPERATURE, PRESSURE
National Category
Natural Sciences Condensed Matter Physics
Research subject
Physics and Mathematics
Identifiers
URN: urn:nbn:se:his:diva-16648DOI: 10.1103/PhysRevB.99.075135ISI: 000459224100003Scopus ID: 2-s2.0-85061980861OAI: oai:DiVA.org:his-16648DiVA, id: diva2:1290130
Available from: 2019-02-19 Created: 2019-02-19 Last updated: 2019-05-09Bibliographically approved

Open Access in DiVA

fulltext(531 kB)61 downloads
File information
File name FULLTEXT01.pdfFile size 531 kBChecksum SHA-512
be41e40d99d48a525442a6de96fd4afc8cb863050f373ad77a3c18461a543588ef118e7f71dee7ab51e2b2019828752450748270afba939bec62c5ce58815da3
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Authority records BETA

Karlsson, Krister

Search in DiVA

By author/editor
Karlsson, Krister
By organisation
School of Engineering ScienceThe Virtual Systems Research Centre
In the same journal
Physical Review B. Condensed Matter and Materials Physics
Natural SciencesCondensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar
Total: 61 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 119 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf