TY - JOUR A1 - Kramer, Tobias A1 - Kreisbeck, Christoph A1 - Riha, Christian A1 - Chiatti, Olivio A1 - Buchholz, Sven A1 - Wieck, Andreas A1 - Reuter, Dirk A1 - Fischer, Saskia T1 - Thermal energy and charge currents in multi-terminal nanorings JF - AIP Advances N2 - We study in experiment and theory thermal energy and charge transfer close to the quantum limit in a ballistic nanodevice, consisting of multiply connected one-dimensional electron waveguides. The fabricated device is based on an AlGaAs/GaAs heterostructure and is covered by a global top-gate to steer the thermal energy and charge transfer in the presence of a temperature gradient, which is established by a heating current. The estimate of the heat transfer by means of thermal noise measurements shows the device acting as a switch for charge and thermal energy transfer. The wave-packet simulations are based on the multi-terminal Landauer-Büttiker approach and confirm the experimental finding of a mode-dependent redistribution of the thermal energy current, if a scatterer breaks the device symmetry. Y1 - 2016 U6 - https://doi.org/10.1063/1.4953812 VL - 6 SP - 065306 ER -