84 citations · 148 across the 7 of their papers we have counts for
7 papers
A corner reflector of graphene Dirac fermions as a phonon-scattering sensor
H. Graef, Q. Wilmart, M. Rosticher +10
Dirac fermion optics exploits the refraction of chiral fermions across optics-inspired Klein-tunneling barriers defined by high-transparency p-n junctions. We consider the corner r…
Onset of optical-phonon cooling in multilayer graphene revealed by RF noise and black-body radiation thermometries
D. Brunel, S. Berthou, R. Parret +8
We report on electron cooling power measurements in few-layer graphene excited by Joule heating by means of a new setup combining electrical and optical probes of the electron and…
Contact gating at GHz frequency in graphene
Q. Wilmart, A. Inhofer, M. Boukhicha +7
The paradigm of graphene transistors is based on the gate modulation of the channel carrier density by means of a local channel gate. This standard architecture is subject to the s…
Dirac fermion reflector by ballistic graphene sawtooth-shaped npn junctions
Sei Morikawa, Quentin Wilmart, Satoru Masubuchi +4
We have realized a Dirac fermion reflector in graphene by controlling the ballistic carrier trajectory in a sawtooth-shaped npn junction. When the carrier density in the inner p-re…
A graphene Zener-Klein transistor cooled by a hyperbolic substrate
W. Yang, S. Berthou, X. Lu +11
Engineering of cooling mechanisms is a bottleneck in nanoelectronics. Whereas thermal exchanges in diffusive graphene are mostly driven by defect assisted acoustic phonon scatterin…
Klein-tunneling transistor with ballistic graphene
Quentin Wilmart, Salim Berada, David Torrin +5
Today the availability of high mobility graphene up to room temperature makes ballistic transport in nanodevices achievable. In particular, p-n-p transistor in the ballistic regime…
Thermionic charge transport in CMOS nano-transistors
A. C. Betz, S. Barraud, Q. Wilmart +4
We report on DC and microwave electrical transport measurements in silicon-on-insulator CMOS nano-transistors at low and room temperature. At low source-drain voltage, the DC curre…