We investigate the electronic band dispersion associated to alkali metal chains assembled on the InAs(110) surface by angular-resolved photoelectron spectroscopy. The Cs and K atomic chains induce occupied electronic states with twofold symmetry and narrow bandwidth along the chain direction, showing a quasi-one-dimensional electronic character. The insulating character and the narrow bandwidth of the alkali-induced state suggest the relevance of electron correlation effects in the description of alkali-induced electronic-state dispersion.
Quasi-one-dimensional electronic state of alkali metal chains assembled on the InAs(110) surface / V., Corradini; Betti, Maria Grazia; Mariani, Carlo; E., Spiller; L., Gavioli. - In: EUROPHYSICS LETTERS. - ISSN 0295-5075. - 68:2(2004), pp. 254-260. [10.1209/epl/i2004-10196-3]
Quasi-one-dimensional electronic state of alkali metal chains assembled on the InAs(110) surface
BETTI, Maria Grazia;MARIANI, CARLO;
2004
Abstract
We investigate the electronic band dispersion associated to alkali metal chains assembled on the InAs(110) surface by angular-resolved photoelectron spectroscopy. The Cs and K atomic chains induce occupied electronic states with twofold symmetry and narrow bandwidth along the chain direction, showing a quasi-one-dimensional electronic character. The insulating character and the narrow bandwidth of the alkali-induced state suggest the relevance of electron correlation effects in the description of alkali-induced electronic-state dispersion.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
