Evolution of inter-layer coupling in artificially stacked bilayer MoS2

Autor: Goutham Nayak, Laëtitia Marty, Nedjma Bendiab, Johann Coraux, Aveek Bid, Jaydeep Kumar Basu, Suman Sarkar, Vincent Bouchiat, Julien Renard, H. L. Pradeepa

Publikováno v: Nanoscale Advances
Nanoscale Advances, RSC, 2019, 1 (11), pp.4398-4405. ⟨10.1039/c9na00517j⟩

International audience; In this paper, we show experimentally that for van der Waals heterostructures (vdWh) of atomically-thin materials, the hybridization of bands of adjacent layers is possible only for ultra-clean interfaces. This we achieve thro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f95b94841b7df3dabcba3c4d63f1d31
https://doi.org/10.1039/c9na00517j

Fermi resonance in the Raman spectrum of graphene

Autor: Michele Lazzeri, Dipankar Kalita, Alexandre Artaud, Christian Brouder, Vincent Bouchiat, Michele Amato, Johann Coraux, Laëtitia Marty, Nedjma Bendiab

Publikováno v: Physical Review B
Physical Review B, American Physical Society, 2020, 102 (7), pp.075436. ⟨10.1103/PhysRevB.102.075436⟩
Physical Review B, 2020, 102 (7), pp.075436. ⟨10.1103/PhysRevB.102.075436⟩

We report the observation of an intense anomalous peak at 1608 cm$^{-1}$ in the Raman spectrum of graphene associated to the presence of chromium nanoparticles in contact with graphene. Bombardment with an electron beam demonstrates that this peak is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e598c3413610e185c36998837b2728d

Weakly Trapped, Charged, and Free Excitons in Single-Layer MoS2 in the Presence of Defects, Strain, and Charged Impurities

Autor: Sudipta Dubey, Felix Herziger, Raul Arenal, Kenji Watanabe, Julien Renard, Johann Coraux, César González, Pierre Mallet, Vincent Bouchiat, Takashi Taniguchi, Laurence Magaud, Yannick J. Dappe, V. Cherkez, Goutham Nayak, Laëtitia Marty, Toai Le Quang, Nedjma Bendiab, Simone Lisi, Jean-Yves Veuillen, Van-Dung Nguyen

Publikováno v: ACS Nano
ACS Nano, 2017, 11 (11), pp.11206. ⟨10.1021/acsnano.7b05520⟩
ACS Nano, American Chemical Society, 2017, 11 (11), pp.11206. ⟨10.1021/acsnano.7b05520⟩
Zaguán. Repositorio Digital de la Universidad de Zaragoza
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International audience; Few- and single-layer MoS2 host substantial densities of defects. They are thought to influence the doping level, the crystal structure, and the binding of electron-hole pairs. We disentangle the concomitant spectroscopic expr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::233141c96971d50b0475af498a34e811
https://doi.org/10.1021/acsnano.7b05520

Coherence and Density Dynamics of Excitons in a Single-Layer MoS

Autor: Tomasz, Jakubczyk, Goutham, Nayak, Lorenzo, Scarpelli, Wei-Lai, Liu, Sudipta, Dubey, Nedjma, Bendiab, Laëtitia, Marty, Takashi, Taniguchi, Kenji, Watanabe, Francesco, Masia, Gilles, Nogues, Johann, Coraux, Wolfgang, Langbein, Julien, Renard, Vincent, Bouchiat, Jacek, Kasprzak

Publikováno v: ACS nano. 13(3)

[Image: see text] We measure the coherent nonlinear response of excitons in a single layer of molybdenum disulfide embedded in hexagonal boron nitride, forming a h-BN/MoS(2)/h-BN heterostructure. Using four-wave mixing microscopy and imaging, we corr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::b9e9727dd99d15bde379a0e02cefff13
https://pubmed.ncbi.nlm.nih.gov/30735350

Cathodoluminescence enhancement and quenching in type-I van der Waals heterostructures: Cleanliness of the interfaces and defect creation

Autor: Tomasz Jakubczyk, T. Taniguchi, Jacek Kasprzak, Maxime Richard, Goutham Nayak, Simone Lisi, Fabrice Donatini, Vincent Bouchiat, Nedjma Bendiab, Laëtitia Marty, Julien Renard, Johann Coraux, Wei-Lai Liu, Aveek Bid, Kenji Watanabe, Petr Stepanov

Publikováno v: Physical Review Materials
Physical Review Materials, American Physical Society, 2019, 3 (11), pp.114001. ⟨10.1103/PhysRevMaterials.3.114001⟩

Layered materials, such as transition metal dichalcogenides, can be combined at will in van der Waals heterostructures and lead to a variety of new phenomena. To better understand the coupling between layers and the variation of electronic and optica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e17e40570a19f1977e4a8b31cca70f3
https://hal.archives-ouvertes.fr/hal-02360330