Activities
Our research focuses on light-matter interactions in low-dimensional quantum materials. We develop experimental techniques inspired by optical spectroscopy, nano-optomechanics and device physics to investigate hybrid systems, notably van der Waals heterostructures made from two-dimensional materials such as graphene, atomically-thin semiconductors and magnets. We explore novel optical phenomena and quantum phases of matter, either inherited from the reduced dimensionality or arising from proximity effects yet to be understood.
We are located at IPCMS, a research institute co-hosted by CNRS & Université de Strasbourg in France, on the Cronenbourg campus.
Team Members
Professor, Magnetic Objects on the NanoScale (DMONS)Stephane.Berciaud@ipcms.unistra.fr
See personal pagePhone: +33(0)3 88 10 72 56Office: 1021
PhD student, Magnetic Objects on the NanoScale (DMONS)quentin.fenoy@ipcms.unistra.fr
See personal pagePhone: +33(0)3 88 10 72 31Office: 1053
Researcher, Magnetic Objects on the NanoScale (DMONS)Arnaud.Gloppe@ipcms.unistra.fr
See personal pagePhone: +33(0)3 88 10 69 93Office: 1021
PhD student, Magnetic Objects on the NanoScale (DMONS)joanna.wolff@ipcms.unistra.fr
Phone: +33(0)3 88 10 72 31Office: 1053
Recent Publications :
1839302
J4NL8E8U
surface-science-reports
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[1]
M. Soliman, K. Maity, A. Gloppe, A. Mahmoudi, A. Ouerghi, B. Doudin, B. Kundys, J.-F. Dayen, Photoferroelectric All-van-der-Waals Heterostructure for Multimode Neuromorphic Ferroelectric Transistors., ACS Applied Materials & Interfaces 15 (2023) 15732–15744. https://doi.org/10.1021/acsami.3c00092.
[1]
A. Roslawska, K. Kaiser, M. Romeo, E. Devaux, F. Scheurer, S. Berciaud, T. Neuman, G. Schull, Submolecular-scale control of phototautomerization., Nature Nanotechnology (2024). https://doi.org/10.1038/s41565-024-01622-4.
[1]
R.J. Peña Román, R. Bretel, D. Pommier, L.E. Parra López, E. Lorchat, E. Boer-Duchemin, G. Dujardin, A.G. Borisov, L.F. Zagonel, G. Schull, S. Berciaud, E. Le Moal, Tip-Induced and Electrical Control of the Photoluminescence Yield of Monolayer WS2, Nano Lett. 22 (2022) 9244–9251. https://doi.org/10.1021/acs.nanolett.2c02142.
[1]
R.J. Pena Roman, D. Pommier, R. Bretel, L.E.P. Lopez, E. Lorchat, J. Chaste, A. Ouerghi, S. Le Moal, E. Boer-Duchemin, G. Dujardin, A.G. Borisov, L.F. Zagonel, G. Schull, S. Berciaud, E. Le Moal, Electroluminescence of monolayer WS2 in a scanning tunneling microscope: Effect of bias polarity on spectral and angular distribution of emitted light, Physical Review B 106 (2022) 085419. https://doi.org/10.1103/PhysRevB.106.085419.
[1]
L.E. Parra Lopez, L. Moczko, J. Wolff, A. Singh, E. Lorchat, M. Romeo, T. Taniguchi, K. Watanabe, S. Berciaud, Single-and narrow-line photoluminescence in a boron nitride-supported MoSe2/graphene heterostructure, Comptes Rendus Physique 22 (2021) 77–88. https://doi.org/10.5802/crphys.58.
[1]
S. Pandey, S. Hettler, R. Arenal, C. Bouillet, A.R. Moghe, S. Berciaud, J. Robert, J.-F. Dayen, D. Halley, Room-temperature anomalous Hall effect in graphene in interfacial magnetic proximity to EuO grown by topotactic reduction, Physical Review B 108 (2023) 144423. https://doi.org/10.1103/PhysRevB.108.144423.
[1]
L.E.P. Lopez, A. Roslawska, F. Scheurer, S. Berciaud, G. Schull, Tip-induced excitonic luminescence nanoscopy of an atomically resolved van der Waals heterostructure., Nature Materials 22 (2023) 482–488. https://doi.org/10.1038/s41563-023-01494-4.
[1]
N. Konstantinov, A. Tauzin, U.N. Noumbe, D. Dragoe, B. Kundys, H. Majjad, A. Brosseau, M. Lenertz, A. Singh, S. Berciaud, M.-L. Boillot, B. Doudin, T. Mallah, J.-F. Dayen, Electrical read-out of light-induced spin transition in thin film spin crossover/graphene heterostructures, Journal of Materials Chemistry C 9 (2021) 2712–2720. https://doi.org/10.1039/d0tc05202g.
[1]
M.S. Islam, R.K. Chowdhury, M. Barthelemy, L. Moczko, P. Hébraud, S. Berciaud, A. Barsella, F. Fras, Large-Scale Statistical Analysis of Defect Emission in hBN: Revealing Spectral Families and Influence of Flake Morphology, ACS Nano 18 (2024) 20980–20989. https://doi.org/10.1021/acsnano.3c10403.
[1]
A. Gloppe, M. Onga, R. Hisatomi, A. Imamoglu, Y. Nakamura, Y. Iwasa, K. Usami, Magnon-exciton proximity coupling at a van der Waals heterointerface, Physical Review B 105 (2022) L121403. https://doi.org/10.1103/PhysRevB.105.L121403.
[1]
C. Ferrante, G.D. Battista, L.E.P. López, G. Batignani, E. Lorchat, A. Virga, S. Berciaud, T. Scopigno, Picosecond energy transfer in a transition metal dichalcogenide–graphene heterostructure revealed by transient Raman spectroscopy, Proceedings of the National Academy of Sciences 119 (2022) e2119726119. https://doi.org/10.1073/pnas.2119726119.