Scanning probe-induced thermoelectrics in a quantum point contact
arXiv:2106.03908 · doi:10.1063/5.0059220
Abstract
We study three-terminal thermoelectric transport in a two-dimensional Quantum Point Contact (QPC) connected to left and right electronic reservoirs, as well as a third one represented by a scanning probe tip. The latter acts as a voltage probe exchanging heat with the system but no charges on average. The thermoelectric coefficients are calculated numerically within the Landauer-Büttiker formalism in the low-temperature and linear response regimes. We find tip-induced oscillations of the local and non-local thermopowers and study their dependence on the QPC opening. If the latter is tuned on a conductance plateau, the system behaves as a perfect thermoelectric diode: for some tip positions the charge current through the QPC, driven by a local Seebeck effect, can flow in one direction only.
arXiv comment5+ pages. Includes supplementary material (another 4 pages). Accepted version
References in corpus (48)
- Kwant: a software package for quantum transport
- Fundamental aspects of steady-state conversion of heat to work at the nanoscale
- Optimal energy quanta to current conversion
- Three-Terminal Energy Harvester with Coupled Quantum Dots
- Nanoscale thermal imaging of dissipation in quantum systems
- Three-terminal thermoelectric transport through a molecular junction
- Thermo-Electric Properties of Quantum Point Contacts
- Powerful and efficient energy harvester with resonant-tunneling quantum dots
- Strong bounds on Onsager coefficients and efficiency for three terminal thermoelectric transport in a magnetic field
- Non-equilibrium Green s function based model for dephasing in quantum transport
- Thermoelectric and thermal rectification properties of quantum dot junctions
- Magnon-driven quantum-dot heat engine
- Thermoelectric three-terminal hopping transport through one-dimensional nanosystems
- Reaching optimal efficiencies using nano-sized photo-electric devices
- Thermoelectric transport of mesoscopic conductors coupled to voltage and thermal probes
- Thermoelectric efficiency of three-terminal quantum thermal machines
- Experimental realization of a quantum dot energy harvester
- A Thermometer for the 2D Electron Gas using 1D Thermopower
- Thermopower with broken time-reversal symmetry
- Tuning decoherence with a voltage probe
- On the Mott formula for thermopower of non-interactions electrons in quantum point contacts
- Influence of dephasing process on the quantum Hall effect and the spin Hall effect
- Nonlinear thermoelectricity in point-contacts at pinch-off: a catastrophe aids cooling
- Electron interferometer formed with a scanning probe tip and quantum point contact
- Local Temperature of Out-of-Equilibrium Quantum Electron Systems
- Separation of heat and charge currents for boosted thermoelectric conversion
- Decoherence and Full Counting Statistics in a Mach-Zehnder Interferometer
- Electron-Transfer-Induced Thermal and Thermoelectric Rectification
- Theory of single-electron heat engines coupled to electromagnetic environments
- What is measured in the scanning gate microscopy of a quantum point contact?
- Probing Maxwell's Demon with a Nanoscale Thermometer
- Theory of scanning gate microscopy
- Heat driven transport in serial double quantum dot devices
- Power, Efficiency and Fluctuations in a Quantum Point Contact as Steady-State Thermoelectric Heat Engine
- Substantial local variation of Seebeck coefficient in gold nanowires
- Thermally driven ballistic rectifer
- Inelastic effects in molecular transport junctions: The probe technique at high bias
- Dynamical Coulomb blockade of thermal transport
- Cold spots in quantum systems far from equilibrium: local entropies and temperatures near absolute zero
- The thermodynamic meaning of local temperature of nonequilibrium open quantum systems
- Nanowire-based thermoelectric ratchet in the hopping regime
- Quantum coherence and its dephasing in the giant spin Hall effect and nonlocal voltage generated by magnetotransport through multiterminal graphene bars
- Effect of incoherent scattering on three-terminal quantum Hall thermoelectrics
- Thermoelectric Scanning Gate Interferometry on a Quantum Point Contact
- Graphene - junctions in the Quantum Hall regime: numerical study of incoherent scattering effects
- Quantum point contacts as heat engines
- Anomalous thermopower oscillations in graphene-InAs nanowire vertical heterostructures
- Thermoelectric property of a one dimensional channel in the presence of a transverse magnetic field
Cited by in corpus (7)
- Exact description of transport and non-reciprocity in monitored quantum devices
- Quantum coherent control of nonlinear thermoelectric transport in a triple-dot Aharonov-Bohm heat engine
- Coherent control of thermoelectric currents and noise in quantum thermocouples
- Thermal junctions controlled with Aharonov-Bohm phases
- Scattering theory of thermal and bipolar thermoelectric diodes
- Quantum thermocouples: nonlocal conversion and control of heat in nanostructures
- Extrinsic thermoelectric response of coherent conductors