Evidence for the collapse of short-range magnetic order in CoO at the Néel temperature (Articolo in rivista)

Type
Label
  • Evidence for the collapse of short-range magnetic order in CoO at the Néel temperature (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1209/0295-5075/94/37008 (literal)
Alternative label
  • R. Gotter, F. Offi, A. Ruocco, F. Da Pieve, R.A. Bartynski, M. Cini, and G. Stefani (2011)
    Evidence for the collapse of short-range magnetic order in CoO at the Néel temperature
    in Europhysics letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • R. Gotter, F. Offi, A. Ruocco, F. Da Pieve, R.A. Bartynski, M. Cini, and G. Stefani (literal)
Pagina inizio
  • 37008-p1 (literal)
Pagina fine
  • 37008-p6 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://iopscience.iop.org/0295-5075/94/3/37008 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 94 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [R. Gotter] IOM-CNR Istituto Officina dei Materiali del CNR, Area Science Park - Basovizza, Trieste, Italy, EU [Offi, A. Ruocco, F. Da Pieve, G. Stefani] CNISM and Dipartimento di Fisica, Universit`a Roma Tre - Rome, Italy, EU [R.A. Bartynski] Department of Physics and Astronomy and Laboratory of Surface Modification, Rutgers University Piscataway, NJ, US [M. Cini] Dipartimento di Fisica, Universit`a di Roma Tor Vergata - Rome, Italy, EU [M. Cini] Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare - Frascati, Italy, EU (literal)
Titolo
  • Evidence for the collapse of short-range magnetic order in CoO at the Néel temperature (literal)
Abstract
  • Auger-photoelectron coincidence spectroscopy is used for investigating the electronic properties of a CoO thin film above and below the magnetic transition temperature (TN). By using the dichroic effect in angle-resolved measurements, we identify and assign well-defined highspin and low-spin structures in spite of the otherwise featureless Auger singles spectra, typically found for open-band systems. The disappearance of the dichroism for temperatures just above TN indicates a collapse of the surface short-range magnetic order, presumably due to a strongly reduced exchange field in the surface compared to that in the bulk. (literal)
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