Publications

Communications

Scientific communications involving sharing research findings with the scientific community and the public through papers.

First order quantum breakdown of superconductivity in amorphous superconductors

Thibault Charpentier, David Perconte, Sébastien Léger, Kazi Rafsanjani Amin, Florent Blondelle, Frédéric Gay, Olivier Buisson, Lev Ioffe, Anton Khvalyuk, Igor Poboiko, Mikhail Feigel’man, Nicolas Roch, Benjamin Sacépé

arXiv:2404.09855 To appear in Nature Physics (2024)

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

arXiv:2312.14767 To appear in Nature Communications (2024)

Probing the fractional quantum Hall phases in valley-layer locked bilayer MoS2

Siwen Zhao, Jinqiang Huang, Valentin Crépel, Xingguang Wu, Tongyao Zhang, Hanwen Wang, Xiangyan Han, Zhengyu Li, Chuanying Xi, Senyang Pan, Zhaosheng Wang, Kenji Watanabe, Takashi Taniguchi, Benjamin Sacépé, Jing Zhang, Ning Wang, Jianming Lu, Nicolas Regnault, Zheng Vitto Han

arXiv:2308.02821 To appear in Nature Electronics (2024)

Review article: Electron waves and quantum optics in graphene

Himadri Chakraborti, Cosimo Gorini, Angelika Knothe, Ming-Hao Liu, Péter Makk, Francois D. Parmentier, David Perconte, Klaus Richter, Preden Roulleau, Benjamin Sacépé, Christian Schönenberger, Wenmin Yang

Journal of Physics: Condensed Matter 36, 393001 (2024)

Near-power-law temperature dependence of the superfluid stiffness in strongly disordered superconductors

Anton V. Khvalyuk, Thibault Charpentier, Nicolas Roch, Benjamin Sacépé, Mikhail V. Feigel’man

Phys. Rev. B. 109, 144501 (2024) arXiv:2311.15126

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

Nature 624, 545 (2023)

Absence of edge reconstruction for quantum Hall edge channels in graphene devices

Alexis Coissard, Adolfo G. Grushin, Cécile Repellin, Louis Veyrat, Kenji Watanabe, Takashi Taniguchi, Frédéric Gay, Hervé Courtois, Hermann Sellier, Benjamin Sacépé

Science Advances 9, eadf7220(2023)

Imaging tunable quantum Hall broken-symmetry orders in graphene

Alexis Coissard, David Wander, Hadrien Vignaud, Adolfo G. Grushin, Cécile Repellin, Kenji Watanabe, Takashi Taniguchi, Frédéric Gay, Clemens Winkelmann, Hervé Courtois, Hermann Sellier, Benjamin Sacépé

Nature 605, 51 (2022)

Thermal relaxation in metal films bottlenecked by diffuson lattice excitations of amorphous substrates

E. M. Baeva, N. A. Titova, L. Veyrat, B. Sacépé, A. V. Semenov, G. N. Goltsman, A. I. Kardakova, V. S. Khrapai

Phys. Rev. Applied 15, 054014 (2021) and arXiv:2101:07071 (2021)

A tunable Fabry-Pérot quantum Hall interferometer in graphene

Corentin Déprez, Louis Veyrat, Hadrien Vignaud, Goutham Nayak, Kenji Watanabe, Takashi Taniguchi, Frédéric Gay, Hermann Sellier, Benjamin Sacépé

Nature Nanotechnology (2021) and arXiv:2008:11222 (2020)

Review Article in the Focus Issue on Emergent superconductivity: Quantum breakdown of superconductivity in low-dimensional materials

B. Sacépé, M. Feigel’man, T. Klapwijk

Nature Physics 16, 734 (2020)

Deficiency of the scaling collapse as an indicator of a superconductor-insulator quantum phase transition

A. Rogachev, B. Sacépé

Phys. Rev. B 101, 235164 (2020)

Helical quantum Hall phase in graphene on SrTiO3

Veyrat, C. Deprez, A. Coissard, X. Li, F. Gay, K. Watanabe, T. Taniguchi, Z. Han, B. Piot, H. Sellier, B. Sacépé

Science 367, 781 (2020)

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)

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)

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)

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)

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

Extensive research projects that demonstrate the candidates' original contributions to their field of study.

Hadrien Vignaud (2023)

Study of graphene-based Josephson junctions in the quantum Hall effect regime

Thibault Charpentier (2023)

Quantum circuits and the superconductor-insulator transition in a disordered superconductor

Alexis Coissard (2022)

The many-body ground states of the graphene quantum Hall effect and their edge channels

Marco Guerra (2022)

Electron optics in ballistic graphene studied by scanning gate microscopy

Corentin Déprez (2021)

Helical edge transport and Fabry-Pérot interferometry in graphene quantum Hall effect

Johanna Seidemann (2017)

Iontronics – Field effect study of different devices, using techniques of ionic liquid gating

Kévin Le Calvez (2017)

Signatures of a 4π-periodic Andreev bound state in topological Josephson junctions

Katrin Zimmermann (2016)

Quantum point contact in high mobility graphene