The electronic structure around the Fermi energy of a thin film of iron monoxide on Pt(111) is studied using low temperature scanning tunneling spectroscopy. The surface exhibits a coincidence structure (Moire pattern) due to a lattice mismatch between the oxide thin film and the metal substrate. While the local density of states around the Fermienergy is featureless at most positions in the unit cell, a pronounced depression is observed at one particular site. The origin of this local zero-bias anomaly is discussed in relation to results from first-principle calculations. As a preliminary conclusion, it is suggested that the anomaly is a Kondo resonance due to a frustrated antiferromagnetic layer.

Rienks, E., Nilius, N., Giordano, L., Goniakowski, J., Pacchioni, G., Felicissimo, M., et al. (2007). Local zero-bias anomaly in tunneling spectra of a transition-metal oxide thin film. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 75(20), 205443-205447 [10.1103/PhysRevB.75.205443].

Local zero-bias anomaly in tunneling spectra of a transition-metal oxide thin film

GIORDANO, LIVIA;PACCHIONI, GIANFRANCO;
2007

Abstract

The electronic structure around the Fermi energy of a thin film of iron monoxide on Pt(111) is studied using low temperature scanning tunneling spectroscopy. The surface exhibits a coincidence structure (Moire pattern) due to a lattice mismatch between the oxide thin film and the metal substrate. While the local density of states around the Fermienergy is featureless at most positions in the unit cell, a pronounced depression is observed at one particular site. The origin of this local zero-bias anomaly is discussed in relation to results from first-principle calculations. As a preliminary conclusion, it is suggested that the anomaly is a Kondo resonance due to a frustrated antiferromagnetic layer.
Articolo in rivista - Articolo scientifico
oxide materials, DFT
English
2007
75
20
205443
205447
205443
none
Rienks, E., Nilius, N., Giordano, L., Goniakowski, J., Pacchioni, G., Felicissimo, M., et al. (2007). Local zero-bias anomaly in tunneling spectra of a transition-metal oxide thin film. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 75(20), 205443-205447 [10.1103/PhysRevB.75.205443].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/45280
Citazioni
  • Scopus 20
  • ???jsp.display-item.citation.isi??? 18
Social impact