http://www.cnr.it/ontology/cnr/individuo/prodotto/ID183479

Aluminium arsenide cleaved-edge overgrown quantum wires (Articolo in rivista)

Type

Label

Aluminium arsenide cleaved-edge overgrown quantum wires (Articolo in rivista) (literal)

Anno

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

Alternative label

Moser J.; Zibold T.; Schuh D.; Bichler M.; Ertl F.; Abstreiter G.; Grayson M.; Roddaro S.; Pellegini V. (2005)
Aluminium arsenide cleaved-edge overgrown quantum wires
in Applied physics letters
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Moser J.; Zibold T.; Schuh D.; Bichler M.; Ertl F.; Abstreiter G.; Grayson M.; Roddaro S.; Pellegini V. (literal)

Pagina inizio

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

Rivista

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

Note

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Walter Schottky Institut, Technische Universität München, D-85748 Garching, Germany NEST-INFM, Scuola Normale Superiore, I-56126 Pisa, Italy (literal)

Titolo

Abstract

We report conductance measurements in quantum wires made of aluminum arsenide, a heavy-mass, multivalley one-dimensional (1D) system. Zero-bias conductance steps are observed as the electron density in the wire is lowered, with additional steps observable upon applying a finite dc bias. We attribute these steps to depopulation of successive 1D subbands. The quantum conductance is substantially reduced with respect to the anticipated value for a spin- and valley-degenerate 1D system. This reduction is consistent with disorder-induced, intrawire backscattering that suppresses the transmission of 1D modes. Calculations are presented to demonstrate the role of strain in the 1D states of this cleaved-edge structure. (literal)

Prodotto di