Proposal for a phase-coherent thermoelectric transistor

Abstract

Identifying materials and devices which offer efficient thermoelectric effects at low temperature is a major obstacle for the development of thermal management strategies for low-temperature electronic systems. Superconductors cannot offer a solution since their near perfect electron-hole symmetry leads to a negligible thermoelectric response; however, here we demonstrate theoretically a superconducting thermoelectric transistor which offers unparalleled figures of merit of up to $\sim 45$ and Seebeck coefficients as large as a few mV/K at sub-Kelvin temperatures. The device is also phase-tunable meaning its thermoelectric response for power generation can be precisely controlled with a small magnetic field. Our concept is based on a superconductor-normal metal-superconductor interferometer in which the normal metal weak-link is tunnel coupled to a ferromagnetic insulator and a Zeeman split superconductor. Upon application of an external magnetic flux, the interferometer enables phase-coherent manipulation of thermoelectric properties whilst offering efficiencies which approach the Carnot limit.

4.5 pages, 4 color figures, rebuttal version of the manuscript

References in corpus (8)

• Nonlocal Thermoelectric Effects and Nonlocal Onsager Relations in a Three-Terminal Proximity-Coupled Superconductor-Ferromagnet Device
• Huge thermoelectric effects in ferromagnet-superconductor junctions in the presence of a spin-splitting field
• Phase controlled superconducting proximity effect probed by tunneling spectroscopy
• SQUIPT - Superconducting Quantum Interference Proximity Transistor
• Supercurrent-carrying density of states in diffusive mesoscopic Josephson weak links
• Pure 2nd harmonic current phase relation in Spin filter Josephson junctions
• Tunnel Spectroscopy of a Proximity Josephson Junction
• Hybrid superconducting quantum magnetometer

Cited by in corpus (41)

• Superconducting Spintronics
• Theory of the spin-galvanic effect and the anomalous phase-shift ${\phi }_0$ in superconductors and Josephson junctions with intrinsic spin-orbit coupling
• Observation of thermoelectric currents in high-field superconductor-ferromagnet tunnel junctions
• Towards phase-coherent caloritronics in superconducting circuits
• Thermal, electric and spin transport in superconductor/ferromagnetic-insulator structures
• Revealing the magnetic proximity effect in EuS/Al bilayers through superconducting tunneling spectroscopy
• Ferromagnetic insulator-based superconducting junctions as sensitive electron thermometers
• Nonlinear thermoelectricity with electron-hole symmetric systems
• Field-Effect Controllable Metallic Josephson Interferometer
• Josephson Quantum Heat Engine
• High efficiency thermal switch based on topological Josephson junctions
• Quasiperiodic quantum heat engines with a mobility edge
• Spin caloritronics with superconductors: Enhanced thermoelectric effects, generalized Onsager response-matrix, and thermal spin currents
• Efficient and tunable Aharonov-Bohm quantum heat engine
• Phase-dependent heat and charge transport through superconductor-quantum dot hybrids
• Nonlocal quantum heat engines made of hybrid superconducting devices
• Cross thermoelectric coupling in normal-superconductor quantum dots
• Coherent Josephson thermodynamic cycles
• Phase-coherent heat circulator based on multi-terminal Josephson junctions
• Phase-coherent caloritronics with ordinary and topological Josephson junctions
• Superconductor-ferromagnet hybrids for non-reciprocal electronics and detectors
• Charge transport through spin-polarized tunnel junction between two spin-split superconductors
• Magnetic exchange fields and domain wall superconductivity at an all-oxide superconductor / ferromagnet insulator interface
• Spectral characteristics of a fully-superconducting SQUIPT
• Thermally induced spin-transfer torques in superconductor/ferromagnet bilayers
• Phase-coherent heat circulators with normal- or superconducting contacts
• The inverse proximity effect in strong ferromagnet-superconductor structures
• Phase-dependent heat transport in Josephson junctions with p-wave superconductors and superfluids
• Thermoelectric detection of Andreev states in unconventional superconductors
• Spin-flip Enhanced Thermoelectricity in Superconductor-Ferromagnet Bilayers
• Going beyond the Chandrasekhar-Clogston limit in a flat-band superconductor
• Magnetic proximity effect in superconductor/ferromagnet van der Waals heterostructures: dependence on the number of superconducting monolayers
• ${\theta }_0$ thermal Josephson junction
• Phase and Thermal Driven Transport across T-Shaped Double Quantum Dot Josephson Junction
• Signatures of spin-triplet Cooper pairing in the density of states of spin-textured superconductor-ferromagnet bilayers
• Reconstruction of the DOS at the end of a S/F bilayer
• Magnon influence on the superconducting density of states in superconductor$-$ferromagnetic-insulator bilayers
• Andreev spectrum of a Josephson junction with spin-split superconductors
• Phase-controlled heat modulation with Aharonov-Bohm interferometers
• Nonlinear electric and thermoelectric Andreev transport through a hybrid quantum dot coupled to ferromagnetic and superconducting leads
• Thermalization of hot electrons via interfacial electron-magnon interaction