On the Surfacegrived State of Cleaved YBa_{2}Cu_{3}O_{7-δ} Single Crystals

• Authors: S. Harm , G. Mante , R. Manzke , J. Fink , M. Skibowski
• Languages of publication: EN

Abstracts

EN

Angle-resolved photoemission experiments on the cleaved surface of YBa_{2}Cu_{3}O_{7-δ} single crystals revealed an intrinsic surface-derived electronic state around the X and Y point of the Brillouin zone with 0.92 eV binding energy. A surface electronic structure different to the bulk can be of basic importance for the surface superconductivity of this high-T_{c} cuprate. Here we briefly review recent experimental results and present new hydrogen adsorption experiments, demonstrating the surface character of the 0.92 eV state.

Keywords

EN

74.70.-b; 79.60.-i

Discipline

• 79.60.-i: Photoemission and photoelectron spectra(for photoelectron spectroscopy, see 87.64.ks in biological physics; 82.80.Pv in chemical analysis)
• 74.70.-b: Superconducting materials other than cuprates(for cuprates, see 74.72.-h; for superconducting films, see 74.78.-w)

• Journal: Acta Physica Polonica A
• Year: 1992
• Volume: 82
• Issue: 2
• Pages: 349-354

Dates

published

1992-08

Contributors

author

S. Harm

• Institut für Experimentalphysik, Universität Kiel, Olshausenstr. 40, D-2300 Kiel 1, Germany

author

G. Mante

• Institut für Experimentalphysik, Universität Kiel, Olshausenstr. 40, D-2300 Kiel 1, Germany

author

R. Manzke

• Institut für Experimentalphysik, Universität Kiel, Olshausenstr. 40, D-2300 Kiel 1, Germany

author

J. Fink

• Kernforschungszentrum Karlsruhe, Institut für Nukleare Festkörperphysik, Postfach 3640, D-7500 Karlsruhe, Germany

author

M. Skibowski

• Institut für Experimentalphysik, Universität Kiel, Olshausenstr. 40, D-2300 Kiel 1, Germany

Identifiers

DOI

10.12693/APhysPolA.82.349