Scanning tunneling microscopy (STM) within the DSI focuses on the electronic, spin-related and luminescence properties of single objects such as metallic nanostructures, molecules and atoms. Various techniques are employed for this purpose ranging from scanning tunneling spectroscopy (unpolarized or spin polarized) to contact measurements. In this latter case, stable and reproducible two-terminal devices can be engineered with atomic control by contacting the tip to the target object.
Research Activities
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Recent publications :
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L. Joly, F. Scheurer, P. Ohresser, B. Kengni-Zanguim, J.-F. Dayen, P. Seneor, B. Dlubak, F. Godel, D. Halley, X-ray magnetic dichroism and tunnel magneto-resistance study of the magnetic phase in epitaxial CrVO x nanoclusters, Journal of Physics-Condensed Matter. 34 (2022) 175801. https://doi.org/10.1088/1361-648X/ac4f5e.
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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.
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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.
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A. Roslawska, T. Neuman, B. Doppagne, A.G. Borisov, M. Romeo, F. Scheurer, J. Aizpurua, G. Schull, p Mapping Lamb, Stark, and Purcell Effects at a Chromophore-Picocavity Junction with Hyper-Resolved Fluorescence Microscopy, Physical Review X. 12 (2022) 011012. https://doi.org/10.1103/PhysRevX.12.011012.
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K. Vasilev, B. Doppagne, T. Neuman, A. Roslawska, H. Bulou, A. Boeglin, F. Scheurer, G. Schull, Internal Stark effect of single-molecule fluorescence, Nature Communications. 13 (2022) 677. https://doi.org/10.1038/s41467-022-28241-8.
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D.S. Wang, T. Neuman, S.F. Yelin, J. Flick, Cavity-Modified Unimolecular Dissociation Reactions via Intramolecular Vibrational Energy Redistribution., Journal of Physical Chemistry Letters. 13 (2022) 3317–3324. https://doi.org/10.1021/acs.jpclett.2c00558.
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H. Bulou, L. Joly, J.-M. Mariot, F. Scheurer, Magnetism and Accelerator-Based Light Sources, 2021. https://doi.org/10.1007/978-3-030-64623-3.
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S. Cao, A. Rosławska, B. Doppagne, M. Romeo, M. Féron, F. Chérioux, H. Bulou, F. Scheurer, G. Schull, Energy funnelling within multichromophore architectures monitored with subnanometre resolution, Nature Chemistry. (2021) 1–5. https://doi.org/10.1038/s41557-021-00697-z.
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C. Mier, B. Verlhac, L. Gamier, R. Robles, L. Limot, N. Lorente, D.-J. Choi, Superconducting Scanning Tunneling Microscope Tip to Reveal Sub-millielectronvolt Magnetic Energy Variations on Surfaces, Journal of Physical Chemistry Letters. 12 (2021) 2983–2989. https://doi.org/10.1021/acs.jpclett.1c00328.
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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.
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A. Roslawska, P. Merino, C.C. Leon, A. Grewal, M. Etzkorn, K. Kuhnke, K. Kern, Gigahertz Frame Rate Imaging of Charge-Injection Dynamics in a Molecular Light Source, Nano Letters. 21 (2021) 4577–4583. https://doi.org/10.1021/acs.nanolett.1c00328.
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A. Roslawska, P. Merino, A. Grewal, C.C. Leon, K. Kuhnke, K. Kern, Atomic-Scale Structural Fluctuations of a Plasmonic Cavity, Nano Letters. 21 (2021) 7221–7227. https://doi.org/10.1021/acs.nanolett.1c02207.
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E. Townsend, T. Neuman, A. Debrecht, J. Aizpurua, G.W. Bryant, Many-body physics in small systems: Observing the onset and saturation of correlation in linear atomic chains, Physical Review B. 103 (2021) 195429. https://doi.org/10.1103/PhysRevB.103.195429.
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N. Bachellier, B. Verlhac, L. Garnier, J. Zaldivar, C. Rubio-Verdu, P. Abufager, M. Ormaza, D.-J. Choi, M.-L. Bocquet, J. Pascual I., N. Lorente, L. Limot, Vibron-assisted spin excitation in a magnetically anisotropic molecule, Nature Communications. 11 (2020) 1619. https://doi.org/10.1038/s41467-020-15266-0.
[1]
B. Doppagne, T. Neuman, R. Soria-Martinez, L.E.P. López, H. Bulou, M. Romeo, S. Berciaud, F. Scheurer, J. Aizpurua, G. Schull, Single-molecule tautomerization tracking through space- and time-resolved fluorescence spectroscopy, Nature Nanotechnology. (2020). https://doi.org/10.1038/s41565-019-0620-x.
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L. Garnier, B. Verlhac, P. Abufager, N. Lorente, M. Ormaza, L. Limot, The Kondo Effect of a Molecular Tip As a Magnetic Sensor, Nano Letters. 20 (2020) 8193–8199. https://doi.org/10.1021/acs.nanolett.0c03271.
[1]
B. Kengni-Zanguim, L. Joly, F. Scheurer, P. Ohresser, J.-F. Dayen, C. Ulhaq-Bouillet, J. Uzan, B. Kundys, H. Majjad, D. Halley, Magnetic phase and magneto-resistive effects in vanadium oxide epitaxial nanoclusters, Applied Physics Letters. 116 (2020) 042404. https://doi.org/10.1063/1.5131829.
[1]
J.F. Schultz, S. Li, S. Jiang, N. Jiang, Optical scanning tunneling microscopy based chemical imaging and spectroscopy, Journal of Physics-Condensed Matter. 32 (2020) 463001. https://doi.org/10.1088/1361-648X/aba8c7.