Angle Resolved Photoemission from Nd(1.85)Ce(0.15)CuO(4) using High Energy Photons: A Fermi Surface Investigation
2004 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 93, no 13, 136402-1-136402-4 p.Article in journal (Refereed) Published
We have performed an angle resolved photoemission study on a single crystal of the optimally electron doped (n-type) cuprate superconductor Nd2-xCexCuO4 (x=0.15) at a photon energy of 400 eV. The Fermi surface is mapped out and is, in agreement with earlier measurements, of hole-type with the expected Luttinger volume. However, comparing with previous low energy measurements, we observe a different Fermi surface shape and a different distribution of spectral intensity around the Fermi surface contour. The observed Fermi surface shape indicates a stronger electron correlation in the bulk as compared to the surface.
Place, publisher, year, edition, pages
2004. Vol. 93, no 13, 136402-1-136402-4 p.
Antiferromagnetism; Doping (additives); Electric power measurement; Electron energy analyzers; Electronic structure; Electrons; Fermi surface; Neodymium compounds; Oxide superconductors; Photons; Single crystals; Synchrotron radiation
Condensed Matter Physics Other Engineering and Technologies not elsewhere specified
IdentifiersURN: urn:nbn:se:kth:diva-8058DOI: 10.1103/PhysRevLett.93.136402ISI: 000224131400061ScopusID: 2-s2.0-19644397887OAI: oai:DiVA.org:kth-8058DiVA: diva2:13279
QC 20100702 QC 201109162007-12-122007-12-122011-09-16Bibliographically approved