117 citations · 1.1k across the 35 of their papers we have counts for
26 papers · 1 filter
Minimum thermal conductance of twisted-layer graphite nanofibers
Van-Truong Tran, Thanh-Tra Vu, Philippe Dollfus +2
We study the thermal transport properties of twisted-layer graphite nanofibers. We show that in the presence of a twisted layer, the phonon thermal conductance of a graphite nanofi…
Evidence for Highly p-type doping and type II band alignment in large scale monolayer WSe2 /Se-terminated GaAs heterojunction grown by Molecular beam epitaxy
Debora Pierucci, Aymen Mahmoudi, Mathieu Silly +10
Two-dimensional materials (2D) arranged in hybrid van der Waals (vdW) heterostructures provide a route toward the assembly of 2D and conventional III-V semiconductors. Here, we rep…
Intrinsic subthermionic capabilities and high performance of easy-to-fabricate monolayer metal dihalide MOSFETs
Demetrio Logoteta, Jiang Cao, Marco Pala +2
We investigate the design of steep-slope metal-oxide-semiconductor field-effect transistors (MOSFETs) exploiting monolayers of transition metal dihalides as channel materials. With…
Dissipative Transport and Phonon Scattering Suppression via Valley Engineering in Single-Layer Antimonene and Arsenene Field-Effect Transistors
Jiang Cao, Yu Wu, Hao Zhang +3
Two-dimensional (2D) semiconductors are promising channel materials for next-generation field-effect transistors (FETs) thanks to their unique mechanical properties and enhanced el…
Indirect to direct band gap crossover in two-dimensional WS2(1-x)Se2x alloys
Cyrine Ernandes, Lama Khalil, Hela Almabrouk +12
In atomically thin transition metal dichalcogenide semiconductors, there is a crossover from indirect to direct bandgap as the thickness drops to one monolayer, which comes with a…
A cold-source paradigm for steep-slope transistors based on van der Waals heterojunctions
Demetrio Logoteta, Jiang Cao, Marco Pala +3
The availability of transistors capable of operating at low supply voltage is essential to improve the key performance metric of computing circuits, i.e., the number of operations…
A steep-slope MoS2-nanoribbon MOSFET based on an intrinsic cold-contact effect
D. Logoteta, M. G. Pala, J. Choukroun +2
We propose a steep-slope MoS2-nanoribbon field-effect transistor that exploits a narrow-energy conduction band to intrinsically filter out the thermionic tail of the electron energ…
High performance Tunnel Field Effect Transistors based on in-plane transition metal dichalcogenide heterojunctions
Jean Choukroun, Marco Pala, Shiang Fang +2
In-plane heterojunction tunnel field effect transistors based on monolayer transition metal dichalcogenides are studied by means of self-consistent non-equilibrium Green's function…
Formation of quantum dots in the potential fluctuations of InGaAs heterostructures probed by scanning gate microscopy
P. Liu, F. Martins, B. Hackens +6
The disordered potential landscape in an InGaAs/InAlAs two-dimensional electron gas patterned into narrow wires is investigated by means of scanning gate microscopy. It is found th…
Planning the electron traffic in semiconductor networks: A mesoscopic analog of the Braess paradox encountered in road networks
S. Huant, S. Baltazar, P. Liu +7
By combining quantum simulations of electron transport and scanning-gate microscopy, we have shown that the current transmitted through a semiconductor two-path rectangular network…
Coherent tunnelling across a quantum point contact in the quantum Hall regime
F. Martins, S. Faniel, B. Rosenow +7
The unique properties of quantum Hall devices arise from the ideal one-dimensional edge states that form in a two-dimensional electron system at high magnetic field. Tunnelling bet…
Scanning Gate Spectroscopy of transport across a Quantum Hall Nano-Island
F. Martins, S. Faniel, B. Rosenow +7
We explore transport across an ultra-small Quantum Hall Island (QHI) formed by closed quan- tum Hall edge states and connected to propagating edge channels through tunnel barriers.…
A new transport phenomenon in nanostructures: A mesoscopic analog of the Braess paradox encountered in road networks
Marco Pala, Hermann Sellier, Benoit Hackens +3
The Braess paradox, known for traffic and other classical networks, lies in the fact that adding a new route to a congested network in an attempt to relieve congestion can counter-…
Transport inefficiency in branched-out mesoscopic networks: An analog of the Braess paradox
M. G. Pala, S. Baltazar, P. Liu +7
We present evidence for a counter-intuitive behavior of semiconductor mesoscopic networks that is the analog of the Braess paradox encountered in classical networks. A numerical si…
On the imaging of electron transport in semiconductor quantum structures by scanning-gate microscopy: successes and limitations
Hermann Sellier, Benoit Hackens, Marco Pala +6
This paper presents a brief review of scanning-gate microscopy applied to the imaging of electron transport in buried semiconductor quantum structures. After an introduction to the…
Spin-orbit coupling and phase-coherence in InAs nanowires
S. Estévez Hernández, M. Akabori, K. Sladek +7
We investigated the magnetotransport of InAs nanowires grown by selective area metal-organic vapor phase epitaxy. In the temperature range between 0.5 and 30 K reproducible fluctua…
Scanning-gate microscopy of semiconductor nanostructures: an overview
F. Martins, B. Hackens, H. Sellier +7
This paper presents an overview of scanning-gate microscopy applied to the imaging of electron transport through buried semiconductor nanostructures. After a brief description of t…
Superconducting proximity effect in interacting double-dot systems
James Eldridge, Marco G. Pala, Michele Governale +1
We study subgap transport from a superconductor through a double quantum dot with large on-site Coulomb repulsion to two normal leads. Non-local superconducting correlations in the…
Superconducting proximity effect in interacting quantum dots revealed by shot noise
Alessandro Braggio, Michele Governale, Marco G. Pala +1
We study the full counting statistics of charge transport through a quantum dot tunnel-coupled to one normal and one superconducting lead with a large superconducting gap. As funct…
Local Density of States in Mesoscopic Samples from Scanning Gate Microscopy
M. G. Pala, B. Hackens, F. Martins +4
We study the relationship between the local density of states (LDOS) and the conductance variation in scanning-gate-microscopy experiments on mesoscopic structures as a charge…
Imaging Electron Wave Functions Inside Open Quantum Rings
F. Martins, B. Hackens, M. G. Pala +8
Combining Scanning Gate Microscopy (SGM) experiments and simulations, we demonstrate low temperature imaging of electron probability density in embedded mesoscopic q…
Rashba spin precession in quantum Hall edge channels
Marco G. Pala, Michele Governale, Ulrich Zülicke +1
Quasi--one dimensional edge channels are formed at the boundary of a two-dimensional electron system subject to a strong perpendicular magnetic field. We consider the effect of Ras…
Effect of dephasing on the current statistics of mesoscopic devices
Marco G. Pala, Giuseppe Iannaccone
We investigate the effects of dephasing on the current statistics of mesoscopic conductors with a recently developed statistical model, focusing in particular on mesoscopic cavitie…
Statistical model of dephasing in mesoscopic devices introduced in the scattering matrix formalism
Marco G. Pala, Giuseppe Iannaccone
We propose a phenomenological model of dephasing in mesoscopic transport, based on the introduction of random phase fluctuations in the computation of the scattering matrix of the…