Scanning Tunneling Thermometry
arXiv:1901.09168 · doi:10.1103/PhysRevApplied.13.024065
Abstract
Temperature imaging of nanoscale systems is a fundamental problem which has myriad potential technological applications. For example, nanoscopic cold spots can be used for spot cooling electronic components while hot spots could be used for precise activation of chemical or biological reactions. More fundamentally, imaging the temperature fields in quantum coherent conductors can provide a wealth of information on heat flow and dissipation at the smallest scales. However, despite significant technological advances, the spatial resolution of temperature imaging remains in the few nanometers range. Here we propose a method to map electronic temperature variations in operating nanoscale conductors by relying solely upon electrical tunneling current measurements. The scanning tunneling thermometer, owing to its operation in the tunneling regime, would be capable of mapping sub-angstrom temperature variations, thereby enhancing the resolution of scanning thermometry by some two orders of magnitude.
arXiv commentMain article has 11 pages and 3 figures. Supplementary Information has 9 pages and 4 figures
References in corpus (18)
- Nanometer scale quantum thermometry in a living cell
- High precision nano scale temperature sensing using single defects in diamond
- Observation of the Dirac fluid and the breakdown of the Wiedemann-Franz law in graphene
- Highly conductive molecular junctions based on direct binding of benzene to platinum electrodes
- Theory of non-equilibrium thermoelectric effects in nanoscale junctions
- Heat transport through atomic contacts
- A novel high resolution contactless technique for thermal field mapping and thermal conductivity determination: Two-Laser Raman Thermometry
- Local Temperature of Out-of-Equilibrium Quantum Electron Systems
- Friedel Oscillation-Induced Energy Gap Manifested as Transport Asymmetry at Monolayer-Bilayer Graphene Boundaries
- Probing Maxwell's Demon with a Nanoscale Thermometer
- Local temperature of an interacting quantum system far from equilibrium
- Local transport measurements at mesoscopic length scales using scanning tunneling potentiometry
- Temperature and voltage measurement in quantum systems far from equilibrium
- Cold spots in quantum systems far from equilibrium: local entropies and temperatures near absolute zero
- Thermoelectric Corrections to Quantum Voltage Measurement
- Effective Field Theory of Interacting π-Electrons
- Electric field and potential around localized scatterers in thin metal films studied by scanning tunneling potentiometry
- Emergence of Fourier's law of heat transport in quantum electron systems