325 citations · 598 across the 17 of their papers we have counts for
15 papers · 1 filter
Heat Conduction and Energy Relaxation in an InAs Nanowire Approaching the Clean One-Dimensional Limit
Subhomoy Haldar, Diego Subero, Mukesh Kumar +5
We investigate heat conduction and energy relaxation in an InAs semiconductor nanowire using a hybrid semiconductor-superconductor architecture. Local electronic temperatures are m…
Radial etching of strongly confined crystal-phase defined quantum dots
Markus Aspegren, Chris Mkolongo, Sebastian Lehmann +3
We realize strongly confined quantum dots (QDs) in InAs nanowires (NWs) by combining epitaxial crystal-phase control with chemical wet etching. A strong axial confinement is first…
Geometric symmetry breaking and nonlinearity can increase thermoelectric power
Jonatan Fast, Hanna Lundström, Sven Dorsch +4
Direct thermal-to-electric energy converters typically operate in the linear regime, where the ratio of actual maximum power relative to the ideal maximum power, the so-called fill…
Gate control, g-factors and spin orbit energy of p-type GaSb nanowire quantum dot devices
Sven Dorsch, In-Pyo Yeo, Sebastian Lehmann +3
Proposals for quantum information applications are frequently based on the coherent manipulation of spins confined to quantum dots. For these applications, p-type III-V material sy…
Hot-Carrier Separation in Heterostructure Nanowires observed by Electron-Beam Induced Current
Jonatan Fast, Enrique Barrigon, Mukesh Kumar +7
The separation of hot carriers in semiconductors is of interest for applications such as thermovoltaic photodetection and third-generation photovoltaics. Semiconductor nanowires of…
Heat driven transport in serial double quantum dot devices
Sven Dorsch, Artis Svilans, Martin Josefsson +5
Studies of thermally induced transport in nanostructures provide access to an exciting regime where fluctuations are relevant, enabling the investigation of fundamental thermodynam…
Selective tuning of spin-orbital Kondo contributions in parallel-coupled quantum dots
Heidi Potts, Martin Leijnse, Adam Burke +4
We use co-tunneling spectroscopy to investigate spin-, orbital-, and spin-orbital Kondo transport in a strongly confined system of InAs double quantum dots (QDs) parallel-coupled t…
Spectroscopy and level detuning of few-electron spin states in parallel InAs quantum dots
Claes Thelander, Malin Nilsson, Florinda Viñas Boström +4
We use tunneling spectroscopy to study the evolution of few-electron spin states in parallel InAs nanowire double quantum dots (QDs) as a function of level detuning and applied mag…
Thermoelectric characterization of the Kondo resonance in nanowire quantum dots
Artis Svilans, Martin Josefsson, Adam M. Burke +4
We experimentally verify hitherto untested theoretical predictions about the thermoelectric properties of Kondo correlated quantum dots (QDs). The specific conditions required for…
A quantum-dot heat engine operating close to the thermodynamic efficiency limits
Martin Josefsson, Artis Svilans, Adam M. Burke +5
Cyclical heat engines are a paradigm of classical thermodynamics, but are impractical for miniaturization because they rely on moving parts. A more recent concept is particle-excha…
Thermoelectric power factor limit of a 1D nanowire
I-Ju Chen, Adam Burke, Artis Svilans +2
In the past decade, there has been significant interest in the potentially advantageous thermoelectric properties of one-dimensional (1D) nanowires, but it has been challenging to…
Nonlinear thermoelectric response due to energy-dependent transport properties of a quantum dot
Artis Svilans, Adam M. Burke, Sofia Fahlvik Svensson +2
Quantum dots are useful model systems for studying quantum thermoelectric behavior because of their highly energy-dependent electron transport properties, which are tunable by elec…
InAs nanowire transistors with multiple, independent wrap-gate segments
A. M. Burke, D. J. Carrad, J. G. Gluschke +5
We report a method for making horizontal wrap-gate nanowire transistors with up to four independently controllable wrap-gated segments. While the step up to two independent wrap-ga…
Electron-beam patterning of polymer electrolyte films to make multiple nanoscale gates for nanowire transistors
D. J. Carrad, A. M. Burke, R. W. Lyttleton +7
We report an electron-beam based method for the nanoscale patterning of the poly(ethylene oxide)/LiClO polymer electrolyte. We use the patterned polymer electrolyte as a high…
Determining the stability and activation energy of Si acceptors in AlGaAs using quantum interference in an open hole quantum dot
D. J. Carrad, A. M. Burke, O. Klochan +6
We fabricated an etched hole quantum dot in a Si-doped (311)A AlGaAs/GaAs heterostructure to study disorder effects via magnetoconductance fluctuations (MCF) at millikelvin tempera…