Electrical Conductance of Atomic Contacts in Liquid Environments
نویسندگان
چکیده
منابع مشابه
Theoretical study of the conductance of ferromagnetic atomic-sized contacts
M. Häfner,1,2 J. K. Viljas,1,3 D. Frustaglia,4 F. Pauly,1,3 M. Dreher,5 P. Nielaba,5 and J. C. Cuevas2,1,3 1Institut für Theoretische Festkörperphysik, Universität Karlsruhe, D-76128 Karlsruhe, Germany 2Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain 3Institut für Nanotechnologie, Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germ...
متن کاملCorrelating structure, conductance, and mechanics of silver atomic-scale contacts.
We measure simultaneously force and conductance of Ag metal point-contacts under ambient conditions at room temperature. We observe the formation of contacts with a conductance close to 1 G0, the quantum of conductance, which can be attributed to a single-atom contact, similar to those formed by Au. We also find two additional conductance features at ∼0.4 G0 and ∼1.3 G0, which have been previou...
متن کاملStructure and conductance histogram of atomic-sized Au contacts
Many experiments have shown that the conductance histograms of metallic atomic-sized contacts exhibit a peak structure, which is characteristic of the corresponding material. The origin of these peaks still remains as an open problem. In order to shed some light on this issue, we present a theoretical analysis of the conductance histograms of Au atomic contacts. We have combined classical molec...
متن کاملEvidence for Saturation of Channel Transmission from Conductance Fluctuations in Atomic-Size Point Contacts
The conductance of atomic-size contacts has a small, random, voltage dependent component analogous to conductance fluctuations observed in diffusive wires. A new effect is observed in gold contacts, consisting of a marked suppression of these fluctuations when the conductance of the contact is close to integer multiples of the conductance quantum. Using a model based on the Landauer-Büttiker fo...
متن کاملQuantum degeneracy in atomic point contacts revealed by chemical force and conductance.
Quantum degeneracy is an important concept in quantum mechanics with large implications to many processes in condensed matter. Here, we show the consequences of electron energy level degeneracy on the conductance and the chemical force between two bodies at the atomic scale. We propose a novel way in which a scanning probe microscope can detect the presence of degenerate states in atomic-sized ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Small
سال: 2005
ISSN: 1613-6810,1613-6829
DOI: 10.1002/smll.200500145