English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We study the electron transport properties through a supported organicmolecule styrene (C8H8) on an ideal silicon surface Si[111] and probed by aSTM-tip. The I-V characteristics and the differential conductance of themolecule are calculated using a self consistent approach based on nonequilibrium Green's functions. Two different adsorption configurations for themolecule on the surface were considered which corresponds to a global and alocal minimum of the total energy. In both cases we find a negativedifferential resistance (NDR) in a given interval of bias voltages. This effectis controlled by the states available close to the Fermi level of the surfaceand can be manipulated by properly doping the substrate. We also analyze theinfluence of the tip-shape on the I-V characteristics.

Negative differential resistance of Styrene on an ideal Si[111] surface:  dependence of the I-V characteristics on geometry, surface doping and shape  of the STM-tip