Spectroscopic evidence of in-gap states at the SrTiO3/LaAlO3 ultrathin interfaces

Giovanni Drera, Francesco Banfi, F. Federici Canova, P. Borghetti, Luigi Ermenegildo Sangaletti, F. Bondino, E. Magnano, J. Huijben, M. Huijben, G. Rijnders, D. H.A. Blank, H. Hilgenkamp, A. Brinkman

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

35 Citazioni (Scopus)


Experimental evidence of differences in the electronic properties of an insulating and a conducting SrTiO3/LaAlO3 interface is provided by soft x-ray spectroscopies. While core level photoemission measurements show that only at the conducting interface Ti ions with 3+ ionization state are present, by using resonant photoemission and x-ray absorption spectroscopies, it is shown that in both samples in-gap states with a Ti 3d character are present, but their density is higher at the conducting interface.
Lingua originaleEnglish
pagine (da-a)N/A-N/A
Numero di pagine3
RivistaApplied Physics Letters
Stato di pubblicazionePubblicato - 2011


  • Devices
  • Oxides Heterostructures
  • Photoemision
  • Transport


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