Zobrazeno 1 - 10
of 386
pro vyhledávání: '"Bayot, V."'
Autor:
Moreau, N., Faniel, S., Martins, F., Desplanque, L., Wallart, X., Melinte, S., Bayot, V., Hackens, B.
Coulomb diamonds are the archetypal signatures of Coulomb blockade, a well-known charging effect mainly observed in nanometer-sized "electronic islands" tunnel-coupled with charge reservoirs. Here, we identify apparent Coulomb diamond features in the
Externí odkaz:
http://arxiv.org/abs/2110.07978
Autor:
Toussaint, S., Brun-Barrière, B., Faniel, S., Desplanque, L., Wallart, X., Bayot, V., Hackens, B.
Publikováno v:
Phys. Rev. B 98, 075310 (2018)
Ballistic injection in a nanodevice is a complex process where electrons can either be transmitted or reflected, thereby introducing deviations from the otherwise quantized conductance. In this context, quantum rings (QRs) appear as model geometries:
Externí odkaz:
http://arxiv.org/abs/1804.02457
Autor:
Brun, B., Martins, F., Faniel, S., Cavanna, A., Ulysse, C., Ouerghi, A., Gennser, U., Mailly, D., Simon, P., Huant, S., Sanquer, M., Sellier, H., Bayot, V., Hackens, B.
Publikováno v:
Phys. Rev. Applied 11, 034069 (2019)
We introduce a new scanning probe technique derived from scanning gate microscopy (SGM) in order to investigate thermoelectric transport in two-dimensional semiconductor devices. The thermoelectric scanning gate Microscopy (TSGM) consists in measurin
Externí odkaz:
http://arxiv.org/abs/1804.00075
Autor:
Brun, B., Martins, F., Faniel, S., Hackens, B., Cavanna, A., Ulysse, C., Ouerghi, A., Gennser, U., Mailly, D., Simon, P., Huant, S., Bayot, V., Sanquer, M., Sellier, H.
Publikováno v:
Physical Review Letters 116, 136801 (2016)
The Kondo effect is the many-body screening of a local spin by a cloud of electrons at very low temperature. It has been proposed as an explanation of the zero-bias anomaly in quantum point contacts where interactions drive a spontaneous charge local
Externí odkaz:
http://arxiv.org/abs/1603.08680
Autor:
Liu, P., Martins, F., Hackens, B., Desplanque, L., Wallart, X., Pala, M. G., Huant, S., Bayot, V., Sellier, H.
Publikováno v:
Physical Review B 91, 075313 (2015)
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 that scanning a negatively charged tip above particular sites of the wir
Externí odkaz:
http://arxiv.org/abs/1502.07857
Autor:
Huant, S., Baltazar, S., Liu, P., Sellier, H., Hackens, B., Martins, F., Bayot, V., Wallart, X., Desplanque, L., Pala, M. G.
Publikováno v:
AIP Conference Proceedings 1566, 229 (2013
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 in the ballistic and coherent regimes of transport can be paradoxical
Externí odkaz:
http://arxiv.org/abs/1312.1885
Autor:
Brun, B., Martins, F., Faniel, S., Hackens, B., Bachelier, G., Cavanna, A., Ulysse, C., Ouerghi, A., Gennser, U., Mailly, D., Huant, S., Bayot, V., Sanquer, M., Sellier, H.
Publikováno v:
Nature Communications 5, 4290 (2014)
Quantum point contacts exhibit mysterious conductance anomalies in addition to well known conductance plateaus at multiples of 2e^2/h. These 0.7 and zero-bias anomalies have been intensively studied, but their microscopic origin in terms of many-body
Externí odkaz:
http://arxiv.org/abs/1307.8328
Autor:
Martins, F., Faniel, S., Rosenow, B., Pala, M. G., Sellier, H., Huant, S., Desplanque, L., Wallart, X., Bayot, V., Hackens, B.
Publikováno v:
New Journal of Physics 15, 013049 (2013)
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. Scanning gate microscopy and scanning gate spectroscopy are used to f
Externí odkaz:
http://arxiv.org/abs/1305.1661
Autor:
Martins, F., Faniel, S., Rosenow, B., Sellier, H., Huant, S., Pala, M. G., Desplanque, L., Wallart, X., Bayot, V., Hackens, B.
Publikováno v:
Scientific Reports 3 : 1416 (2013)
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 between edge states across a quantum point contact (QPC) has already reve
Externí odkaz:
http://arxiv.org/abs/1305.1589
Autor:
Gence, L., Faniel, S., Gustin, C., Melinte, S., Bayot, V., Callegari, V., Reynes, O., Demoustier-Champagne, S.
We present here the synthesis and structural characterization of hybrid Au-polypyrrole-Au and Pt- polypyrrole-Au nanowires together with a study of their electrical properties from room-temperature down to very low temperature. A careful characteriza
Externí odkaz:
http://arxiv.org/abs/1112.4656