Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 176804 |
| Fachzeitschrift | Physical Review Letters |
| Jahrgang | 95 |
| Ausgabenummer | 17 |
| Publikationsstatus | Veröffentlicht - 21 Okt. 2005 |
Abstract
We show in a combined study of four-point conductance measurement and tunneling microscopy that surface state conductance induced by one monolayer of Pb on Si(557) can be quasi one dimensional with conductivity values close to typical three-dimensional metals. At a critical temperature of Tc=78K, associated with an order-disorder phase transition and a tenfold superperiodicity along the Pb chains, the system switches from low to high conductance anisotropy, with a semiconductor-insulator transition in the direction perpendicular to the chain structure, while along the chains conductance with a (1/T+const) temperature dependence was found.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
in: Physical Review Letters, Jahrgang 95, Nr. 17, 176804, 21.10.2005.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Switching between one and two dimensions
T2 - Conductivity of Pb-induced chain structures on Si(557)
AU - Tegenkamp, Christoph
AU - Kallassy, Ziad
AU - Pfnür, Herbert
AU - Günter, H. L.
AU - Zielasek, Volkmar
AU - Henzler, Martin
PY - 2005/10/21
Y1 - 2005/10/21
N2 - We show in a combined study of four-point conductance measurement and tunneling microscopy that surface state conductance induced by one monolayer of Pb on Si(557) can be quasi one dimensional with conductivity values close to typical three-dimensional metals. At a critical temperature of Tc=78K, associated with an order-disorder phase transition and a tenfold superperiodicity along the Pb chains, the system switches from low to high conductance anisotropy, with a semiconductor-insulator transition in the direction perpendicular to the chain structure, while along the chains conductance with a (1/T+const) temperature dependence was found.
AB - We show in a combined study of four-point conductance measurement and tunneling microscopy that surface state conductance induced by one monolayer of Pb on Si(557) can be quasi one dimensional with conductivity values close to typical three-dimensional metals. At a critical temperature of Tc=78K, associated with an order-disorder phase transition and a tenfold superperiodicity along the Pb chains, the system switches from low to high conductance anisotropy, with a semiconductor-insulator transition in the direction perpendicular to the chain structure, while along the chains conductance with a (1/T+const) temperature dependence was found.
UR - http://www.scopus.com/inward/record.url?scp=28844465490&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.95.176804
DO - 10.1103/PhysRevLett.95.176804
M3 - Article
AN - SCOPUS:28844465490
VL - 95
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 17
M1 - 176804
ER -