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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

It has been shown within the Landauer single-channel approach that thepresence of the 0.7 anomaly in the conductance of a ballistic microcontact andthe respective plateau in the thermopower implies unusual pinning of thepotential barrier height $U$ at a depth of $k_BT$ below the Fermi level $E_F$.A simple way of taking into account the effect of electron-electron interactionon the profile and temperature dependence of a smooth one-dimensional potentialbarrier in the lower spin degeneracy subband of the microcontact has beenproposed. The calculated temperature dependences of the conductance and Seebeckcoefficient agree with the experimental gate-voltage dependences, including theemergence of anomalous plateaux with an increase in temperature.

Temperature Dependence of Conductance and Thermopower Anomalies of Quantum Point Contacts