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pro vyhledávání: '"LAFONT, F."'
Autor:
Lafont, F., Barkats, D., Buffet, J-C., Cuccaro, S., Guerard, B., Lai, C-C, Marchal, J., Pentenero, J., Sartor, N., Hall-Wilton, R., Kanaki, K., Robinson, L., Svensson, P O.
With the renewal of many neutron science instruments and the commissioning of new neutron facilities, there is a rising demand for improved neutron beam monitoring systems with reduced beam perturbations and higher counting rate capability. Fission c
Externí odkaz:
http://arxiv.org/abs/2202.01475
Uranium fission chambers are commonly used for neutron beam monitoring in neutron research facilities. The challenges brought with the renewing or commissioning of new neutron facilities encourage to minimize the interaction between the monitor and t
Externí odkaz:
http://arxiv.org/abs/2111.13535
Autor:
Griesmar, J., Rodriguez, R. H., Benzoni, V., Pillet, J. -D., Smirr, J. -L., Lafont, F., Girit, Ç. Ö.
Publikováno v:
Phys. Rev. Research 3, 043078 (2021)
Spectroscopy is a powerful tool to probe physical, chemical, and biological systems. Recent advances in microfabrication have introduced novel, intriguing mesoscopic quantum systems including superconductor-semiconductor hybrid devices and topologica
Externí odkaz:
http://arxiv.org/abs/2106.02632
Autor:
Lafont, F., Baruchel, J., Bousquet, J., Capria, E., Celestre, R., Cotte, M., Dauvergne, D., Everaere, P., Gallin-Martel, M.L., Hoarau, C., Ibourk, O., Letellier, J., Molle, R., Muraz, J.-F., Nusimovici, D.Z., Reynaud, M., Tran-Caliste, T.N.
Publikováno v:
In Diamond & Related Materials December 2023 140 Part B
Autor:
Ribeiro-Palau, R., Lafont, F., Brun-Picard, J., Kazazis, D., Michon, A., Cheynis, F., Couturaud, O., Consejo, C., Jouault, B., Poirier, W., Schopfer, F.
The quantum Hall effect (QHE) theoretically provides a universal standard of electrical resistance in terms of the Planck constant $h$ and the electron charge $e$. In graphene, the spacing between the lowest discrete energy levels occupied by the cha
Externí odkaz:
http://arxiv.org/abs/1504.06511
Autor:
Lafont, F., Ribeiro-Palau, R., Kazazis, D., Michon, A., Couturaud, O., Consejo, C., Chassagne, T., Zielinski, M., Portail, M., Jouault, B., Schopfer, F., Poirier, W.
Publikováno v:
Nat. Commun., 6, 6806 (2015)
Replacing GaAs by graphene to realize more practical quantum Hall resistance standards (QHRS), accurate to within $10^{-9}$ in relative value, but operating at lower magnetic fields than 10 T, is an ongoing goal in metrology. To date, the required ac
Externí odkaz:
http://arxiv.org/abs/1407.3615
Autor:
Lafont, F., Ribeiro-Palau, R., Han, Z., Cresti, A., Delvallée, A., Cummings, A. W., Roche, S., Bouchiat, V., Ducourtieux, S., Schopfer, F., Poirier, W.
Publikováno v:
Phys. Rev. B, 90, 115422 (2014)
We report on the observation of strong backscattering of charge carriers in the quantum Hall regime of polycrystalline graphene grown by chemical vapor deposition, which alters the accuracy of the Hall resistance quantization. The temperature and mag
Externí odkaz:
http://arxiv.org/abs/1404.2536
We investigate the magneto-transport properties of epitaxial graphene single-layer on 4H-SiC(0001), grown by atmospheric pressure graphitization in Ar, followed by H2 intercalation. We directly demonstrate the importance of saturating the Si dangling
Externí odkaz:
http://arxiv.org/abs/1403.5059
Publikováno v:
J. Appl. Phys, 115, 044509 (2014)
We propose a way to realize a programmable quantum current standard (PQCS) from the Josephson voltage standard and the quantum Hall resistance standard (QHR) exploiting the multiple connection technique provided by the quantum Hall effect (QHE) and t
Externí odkaz:
http://arxiv.org/abs/1310.3172
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