Mixed Dimensionality of Confined Conducting Electrons in the Surface Region of SrTiO3 (Articolo in rivista)

Type
Label
  • Mixed Dimensionality of Confined Conducting Electrons in the Surface Region of SrTiO3 (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevLett.113.086801 (literal)
Alternative label
  • Plumb, N. C.; Salluzzo, M.; Razzoli, E.; Mansson, M.; Falub, M.; Krempasky, J.; Matt, C. E.; Chang, J.; Schulte, M.; Braun, J.; Ebert, H.; Minar, J.; Delley, B.; Zhou, K. -J.; Schmitt, T.; Shi, M.; Mesot, J.; Patthey, L.; Radovic, M. (2014)
    Mixed Dimensionality of Confined Conducting Electrons in the Surface Region of SrTiO3
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Plumb, N. C.; Salluzzo, M.; Razzoli, E.; Mansson, M.; Falub, M.; Krempasky, J.; Matt, C. E.; Chang, J.; Schulte, M.; Braun, J.; Ebert, H.; Minar, J.; Delley, B.; Zhou, K. -J.; Schmitt, T.; Shi, M.; Mesot, J.; Patthey, L.; Radovic, M. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 113 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 8 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Paul Scherrer Institute; Consiglio Nazionale delle Ricerche (CNR); Paul Scherrer Institute; Ecole Polytechnique Federale de Lausanne; Swiss Federal Institute of Technology Zurich; University of Munich; University of West Bohemia Pilsen; Paul Scherrer Institute; Paul Scherrer Institute (literal)
Titolo
  • Mixed Dimensionality of Confined Conducting Electrons in the Surface Region of SrTiO3 (literal)
Abstract
  • Using angle-resolved photoemission spectroscopy, we show that the recently discovered surface state on SrTiO3 consists of nondegenerate t(2g) states with different dimensional characters. While the d(xy) bands have quasi-2D dispersions with weak k(z) dependence, the lifted d(xz)/d(yz) bands show 3D dispersions that differ significantly from bulk expectations and signal that electrons associated with those orbitals permeate the near-surface region. Like their more 2D counterparts, the size and character of the d(xz)/d(yz) Fermi surface components are essentially the same for different sample preparations. Irradiating SrTiO3 in ultrahigh vacuum is one method observed so far to induce the \"universal\" surface metallic state. We reveal that during this process, changes in the oxygen valence band spectral weight that coincide with the emergence of surface conductivity are disproportionate to any change in the total intensity of the O 1s core level spectrum. This signifies that the formation of the metallic surface goes beyond a straightforward chemical doping scenario and occurs in conjunction with profound changes in the initial states and/or spatial distribution of near-E-F electrons in the surface region. (literal)
Prodotto di
Autore CNR

Incoming links:


Autore CNR di
Prodotto
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
data.CNR.it