2018/04/30 by B. Brun, F. Martins, S. Faniel +11
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Conductance #Context (archaeology) #Interferometry #Nanoscopic scale #Point (geometry) #Quantum #Quantum and electron transport phenomena #Quantum limit #Quantum point contact #Thermoelectric effect #Topological Materials and Phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevapplied.11.034069
published as Phys. Rev. Applied 11, 034069 (2019) · Accepted for publication in Physical Review Applied
arxiv created 2019/03/15 · openalex publication_date 2019/03/28 · arxiv updated 2019/04/03 · openalex created_date 2019/04/11 · openalex updated_date 2026/08/05
In the context of emerging quantum technology and energy harvesting, there has been a recent surge of interest in nanoscale thermoelectric transport. The authors present a near-field imaging technique to study such phenomena, and demonstrate its great potential by revealing in a quantum point contact a localized state that is invisible to standard transport measurements. This approach should help, for example, to resolve the long-lived debate over the conductance and thermoelectric properties of quantum point contacts (the 0.7 and zero-bias anomalies), as it is particularly efficient in detecting bound states.