http://www.cnr.it/ontology/cnr/individuo/prodotto/ID207440
Observation of a two-dimensional electron gas at the surface of annealed SrTiO3 single crystals by scanning tunneling spectroscopy (Articolo in rivista)
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- Observation of a two-dimensional electron gas at the surface of annealed SrTiO3 single crystals by scanning tunneling spectroscopy (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevB.86.155425 (literal)
- Alternative label
R. Di Capua1,2, M. Radovic 1,3, G. M. De Luca 1, I. Maggio-Aprile 4, F. Miletto Granozio 1, N. C. Plumb 5, Z. Ristic 1,4, U. Scotti di Uccio 1,6, R. Vaglio 1,6 and M. Salluzzo 1 (2012)
Observation of a two-dimensional electron gas at the surface of annealed SrTiO3 single crystals by scanning tunneling spectroscopy
in Physical review. B, Condensed matter and materials physics
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- R. Di Capua1,2, M. Radovic 1,3, G. M. De Luca 1, I. Maggio-Aprile 4, F. Miletto Granozio 1, N. C. Plumb 5, Z. Ristic 1,4, U. Scotti di Uccio 1,6, R. Vaglio 1,6 and M. Salluzzo 1 (literal)
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- http://link.aps.org/doi/10.1103/PhysRevB.86.155425 (literal)
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- 1CNR-SPIN, Complesso Universitario Monte S. Angelo, Via Cintia I-80126 Napoli, Italy
2Dipartimento S.pe.S., Università degli Studi del Molise, Via De Sanctis, I-86100 Campobasso, Italy
3LSNS - EPFL, PH A2 354 (Bâtiment PH) Station 3 CH-1015 Lausanne, Switzerland
4Département de Physique de la Matière Condensée, University of Geneva, 24 Quai Ernest-Ansermet,
CH-1211 Geneva 4, Switzerland
5Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
6Dipartimento di Scienze Fisiche, Università \"Federico II\" di Napoli, Via Cintia I-80126 Napoli, Italy (literal)
- Titolo
- Observation of a two-dimensional electron gas at the surface of annealed SrTiO3 single crystals by scanning tunneling spectroscopy (literal)
- Abstract
- Scanning tunneling spectroscopy suggests the formation of a two dimensional electron gas (2DEG)
on the TiO2 terminated surface of undoped SrTiO3 single crystals annealed at temperature lower
than 400 °C in ultra high vacuum conditions. Low energy electron diffraction indicates that the 2D
metallic SrTiO3 surface is not structurally reconstructed, suggesting that non-ordered oxygen
vacancies created in the annealing process introduce carriers leading to an electronic reconstruction.
The experimental results are interpreted in a frame of competition between oxygen diffusion from
the bulk to the surface and oxygen loss from the surface itself. (literal)
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