Publications

Evidence for correlated electron pairs and triplets in quantum Hall interferometers

Wenmin Yang, David Perconte, Corentin Déprez, Kenji Watanabe, Takashi Taniguchi, Sylvain Dumont, Edouard Wagner, Frédéric Gay, Inès Safi, Hermann Sellier, Benjamin Sacépé

Nature Communications 15:10064 (2024)

2023

Evidence of chiral supercurrent in quantum Hall Josephson junctions,
Hadrien Vignaud, David Perconte, Wenmin Yang, Bilal Kousar, Edouard Wagner, Frédéric Gay, Kenji Watanabe, Takashi Taniguchi, Hervé Courtois, Zheng Han, Hermann Sellier, Benjamin Sacépé,

Extreme Sensitivity of the Superconducting State in Thin Films
I. Tamir, A. Benyamini, E. J. Telford, F. Gorniaczyk, A. Doron, T. Levinson, D. Wang, F. Gay, B. Sacépé, J. Hone, K. Watanabe, T. Taniguchi, C. R. Dean, A. N. Pasupathy, D. Shahar
Science Advances 5:eaau3826 (2019)

Low Magnetic Field Regime of a Gate-Defined Quantum Point Contact in High-Mobility Graphene
Louis Veyrat, Anna Jordan, Katrin Zimmermann, Frédéric Gay, Kenji Watanabe, Takeshi Taniguchi, Hermann Sellier, Benjamin Sacépé
Nano Letters, 19, 635 (2019)

Collective energy gap of preformed Cooper-pairs in disordered superconductors
Thomas Dubouchet, Benjamin Sacépé, Johanna Seidemann, Dan Shahar, Marc Sanquer, Claude Chapelier
Nature Physics 15, 233 (2019)

Joule overheating poisons the fractional ac Josephson effect in topological Josephson junctions
K. Le Calvez, L. Veyrat, F. Gay, P. Plaindoux, C. Winkelmann, H. Courtois, B. Sacépé
Communications Physics, 2:4 (2019)

Low-temperature anomaly in disordered superconductors near Bc2 as a vortex-glass property
B. Sacépé, J. Seidemann, F. Gay, K. Davenport, A. Rogachev, M. Ovadia, K. Michaeli, M. V. Feigel’man
Nature Physics 15, 48-53 (2019) 

2018

Pair-breaking quantum phase transtition in superconducting nanowires
H. Kim, F. Gay, A. Del Maestro, B. Sacépé, A. Rogachev
Nature Physics 14, 912 (2018)

2017

Instability of Insulators near Quantum Phase Transitions
Adam Doron, Idan Tamir, Tal Levinson, Maoz Ovadia, Benjamin Sacépé, Dan Shahar
Phys. Rev. Lett. 119, 247001 (2017)

Tunable transmission of quantum Hall edge channels with full degeneracy lifting in split-gated graphene devices

K. Zimmmermann, A. Jordan, F. Gay, K. Watanabe, T. Taniguchi, Z. Han, V. Bouchiat, H. Sellier, B. Sacépé
Nature Communications, 8:14983 (2017)

Tunable sub-gap radiation detection with superconducting resonators
O. Dupré, A. Benoît, M. Calvo, A. Catalano, J. Goupy, C. Hoarau, T. Klein, K. Le Calvez, B. Sacépé, A. Monfardini and F. Levy-Bertrand
Supercond. Sci. Technol. 30, 045007 (2017)

2016

Relaxation of the resistive superconducting state in boron-doped diamond films
Kardakova, A. Shishkin, A. Semenov, S. Ryabchun, J. Bousquet, D. Eon, B. Sacepe, Th. Klein, E. Bustarret, G.N. Goltsman, T.M. Klapwijk
Phys. Rev. B, 93, 064506, (2016)

Interplay Between Electron Over-Heating and ac Josephson Effect
Alessandro De Cecco, Kévin Le Calvez, Benjamin Sacépé, Clemens Winkelmann, Hervé Courtois
Phys. Rev. B 93, 180505 (2016)

2010 – 2015

Disorder and screening in decoupled graphene on a metallic substrate,
C. Martin, S. Samaddar, B. Sacépé, A. Kimouche, J. Coraux, F. Fuchs, B. Grévin, H. Courtois, and C. B. Winkelmann,
Phys. Rev. B 91, 041406(R) (2015)

Evidence for a Finite Temperature Transition
M. Ovadia, D. Kalok, I. Tamir, S. Mitra, B. Sacépé, D. Shahar,
Scientific Reports, Aug. (2015)

High-field termination of a Cooper-pair insulator,
B. Sacépé, J. Seidemann, M. Ovadia, I. Tamir, D. Shahar, C. Chapelier, C. Strunk, B. Piot,
Phys. Rev. B 91, 220508(R) (2015)

 Collapse of superconductivity in a hybrid tin-graphene Josephson junction array,
Z. Han, A. Allain, A. Arjmandi-Tash, K. Tikhonov, M. Feigel’man, B. Sacépé, V. Bouchiat,
Nature Physics 10, 380 (2014)

Niobium based superconducting nano-device fabrication using all-metal suspended masks junction array,
S. Samaddar, D. van Zanten, A. Fey, B. Sacépé, H. Courtois, C. Winkelmann ,
Nanotechnology 24, 375304 (2013)

Duality symmetry and its breakdown in the vicinity of the superconductor-insulator transition,
M. Ovadia, D. Kalok, B. Sacépé, D. Shahar,
Nature Physics 9, 415 (2013)

Gate-tuned normal and superconducting transport at the surface of a topological insulator,
B. Sacépé, J. Oostinga, J. Li, A. Ubaldini, N. Couto, E. Giannini, A. Morpurgo,
Nature Communications 2:575 (2011)

Transport through Graphene on SrTiO3,
N. Couto, B. Sacépé, A. Morpurgo,
Phys. Rev. Lett. 107, 225501 (2011)

Localization of preformed Cooper-pairs in disordered superconductors,
B. Sacépé, T. Dubouchet, C. Chapelier, M. Sanquer, M. Ovadia, D. Shahar, M. Feigel’man and L. Ioffe,
Nature Physics 7, 239 (2011)

Two-Dimensional Quantum Oscillations of the Conductance at LaAlO3/SrTiO3 Interfaces,
A. Caviglia, S. Gariglio, C. Cancellieri, B. Sacépé, A. Fete, N. Reyren, M. Gabay, A. Morpurgo, and J. M. Triscone,
Phys. Rev. Lett. 105, 236802 (2010)

Pseudogap in a thin film of a conventional superconductor,
B. Sacépé, C. Chapelier, T Baturina, V. Vinokur, M. Baklanov, and M. Sanquer,
Nature Communications 1:140 (2010)

Magnetotransport through graphene nanoribbons,
J. Oostinga, B. Sacépé, M. Craciun and A. Morpurgo,
Phys. Rev. B 81, 193408 (2010)

2005 – 2010

Electron-Phonon Decoupling in Disordered Insulators,
M. Ovadia, B. Sacépé, and D. Shahar,
Phys. Rev. Lett. 102, 176802 (2009)

Disorder-Induced Inhomogeneities of the Superconducting State Close to the Superconductor-Insulator Transition,
B. Sacépé, C. Chapelier, T.I. Baturina, V.M. Vinokur, M.R. Baklanov, and M. Sanquer,

Phys. Rev. Lett. 101, 157006 (2008)

Metal-to-insulator transition and superconductivity in boron-doped diamond,
B.Sacépé, C. Chapelier, C. Marcenat, J. Kacmarcik, T. Klein, M. Bernard, and E. Bustarret,
Philos. Trans. R. Soc. London A 366, 267 (2008)

Experimental indication of a BCS behaviour in superconducting diamond,
B. Sacépé, C. Chapelier, C. Marcenat, J. Kacmarcik, T. Klein, F. Omnes, and E. Bustarret,
Phys. Stat. Sol. A 203, 3315 (2006)

Tunneling Spectroscopy and Vortex Imaging in Boron-Doped Diamond,
B. Sacépé, C. Chapelier, C. Marcenat, J. Kacmarcik, T. Klein, M. Bernard, and E. Bustarret,
Phys. Rev. Lett. 96, 097006 (2006)

Superconducting diamagnetic fluctuations in ropes of carbon nanotubes,
M. Ferrier, F. Ladieu, M. Ocio, B. Sacépé, T. Vaugien, V. Pichot, P. Launois, H. Bouchiat,
Phys. Rev. B. 73, 094520 (2006)

PhD Theses

Katrin Zimmermann (2016) : Quantum point contact in high mobility graphene

Kévin Le Calvez (2017) : Signatures of a 4π-periodic Andreev bound state in topological Josephson junctions

Johanna Seidemann (2017) : Iontronics – Field effect study of different devices, using techniques of ionic liquid gating

Corentin Déprez (2021) : Helical edge transport and Fabry-Pérot interferometry in graphene quantum Hall effect

Marco Guerra (2022) : Electron optics in ballistic graphene studied by scanning gate microscopy

Alexis Coissard (2022) : The many-body ground states of the graphene quantum Hall effect and their edge channels

Thibault Charpentier (2023) : Quantum circuits and the superconductor-insulator transition in a disordered superconductor

Hadrien Vignaud (2023) : Study of graphene-based Josephson junctions in the quantum Hall
effect regime