694 citations · 876 across the 7 of their papers we have counts for
7 papers
Direct Mapping of Local Seebeck Coefficient in 2D Material Nanostructures via Scanning Thermal Gate Microscopy
Achim Harzheim, Charalambos Evangeli, Oleg V. Kolosov +1
Local variations in the Seebeck coefficient in low-dimensional materials-based nanostructures and devices play a major role in their thermoelectric performance. Unfortunately, curr…
Single-Material Graphene Thermocouples
Achim Harzheim, Fabian Könemann, Bernd Gotsmann +2
On-chip temperature sensing on a micro- to nanometer scale is becoming more desirable as the complexity of nanodevices and size requirements increase and with it the challenges in…
The role of metallic leads and electronic degeneracies in thermoelectric power generation in quantum dots
Achim Harzheim, Jakub K. sowa, Jacob L. Swett +3
The power factor of a thermoelectric device is a measure of the heat-to-energy conversion efficiency in nanoscopic devices. Yet, even as interest in low-dimensional thermoelectric…
Geometrically Enhanced Thermoelectric Effects in Graphene Nanoconstrictions
Achim Harzheim, Jean Spiece, Charalambos Evangeli +8
The influence of nanostructuring and quantum confinement on the thermoelectric properties of materials has been extensively studied. While this has made possible multiple breakthro…
Tunneling Spectroscopy of Quantum Hall States in Bilayer Graphene PN Networks
Ke Wang, Achim Harzheim, Ji Ung Lee +3
Two dimensional electronic systems under strong magnetic field form quantum Hall (QH) edge states, which propagate along the boundary of a sample with a dissipationless current. En…
Field-Effect Control of Graphene-Fullerene Thermoelectric Nanodevices
Pascal Gehring, Achim Harzheim, Jean Spièce +10
Although it was demonstrated that discrete molecular levels determine the sign and magnitude of the thermoelectric effect in single-molecule junctions, full electrostatic control o…
Observation of the Dirac fluid and the breakdown of the Wiedemann-Franz law in graphene
Jesse Crossno, Jing K. Shi, Ke Wang +9
Interactions between particles in quantum many-body systems can lead to collective behavior described by hydrodynamics. One such system is the electron-hole plasma in graphene near…