Zobrazeno 1 - 10 of 16 pro vyhledávání: '"Sudipta, Dubey"'
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Akademický článek
Twist angle dependent interlayer transfer of valley polarization from excitons to free charge carriers in WSe2/MoSe2 heterobilayers
Autor: Frank Volmer, Manfred Ersfeld, Paulo E. Faria Junior, Lutz Waldecker, Bharti Parashar, Lars Rathmann, Sudipta Dubey, Iulia Cojocariu, Vitaliy Feyer, Kenji Watanabe, Takashi Taniguchi, Claus M. Schneider, Lukasz Plucinski, Christoph Stampfer, Jaroslav Fabian, Bernd Beschoten
Publikováno v: npj 2D Materials and Applications, Vol 7, Iss 1, Pp 1-10 (2023)
Abstract Transition metal dichalcogenides (TMDs) have attracted much attention in the fields of valley- and spintronics due to their property of forming valley-polarized excitons when illuminated by circularly polarized light. In TMD-heterostructures
Externí odkaz: https://doaj.org/article/70ebfad6a6244eab84738fd8b660efa0
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2
Dipolar interactions between localized interlayer excitons in van der Waals heterostructures
Autor: Weijie Li, Xin Lu, Ajit Srivastava, Sudipta Dubey, Luka Devenica
Publikováno v: Nature Materials. 19:624-629
Although photons in free space barely interact, matter can mediate interactions between them resulting in optical nonlinearities. Such interactions at the single-quantum level result in an on-site photon repulsion, crucial for photon-based quantum in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdaec77bacbcb82d857aa6c64ce176dd
https://doi.org/10.1038/s41563-020-0661-4
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3
Optical initialization of a single spin-valley in charged WSe2 quantum dots
Autor: Ajit Srivastava, Qihua Xiong, Sudipta Dubey, Xin Lu, Xingzhi Wang, Weijie Li, Qiang Yao, Xiaotong Chen
Publikováno v: Nature Nanotechnology. 14:426-431
Control and manipulation of single charges and their internal degrees of freedom, such as spin, may enable applications in quantum information technology, spintronics and quantum sensing1,2. Recently, atomically thin semiconductors with a direct band
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::96550c2b2a8ba793f9924ba13d48e42a
https://doi.org/10.1038/s41565-019-0394-1
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4
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
instname
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
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5
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
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6
Optical initialization of a single spin-valley in charged WSe
Autor: Xin, Lu, Xiaotong, Chen, Sudipta, Dubey, Qiang, Yao, Weijie, Li, Xingzhi, Wang, Qihua, Xiong, Ajit, Srivastava
Publikováno v: Nature nanotechnology. 14(5)
Control and manipulation of single charges and their internal degrees of freedom, such as spin, may enable applications in quantum information technology, spintronics and quantum sensing
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::1fbbadea548d9bd0a4c4ed0d2b99367e
https://pubmed.ncbi.nlm.nih.gov/30833693
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8
Entanglement of single-photons and chiral phonons in atomically thin WSe$_2$
Autor: Ajit Srivastava, Qihua Xiong, Sheng Liu, Lifa Zhang, Xingzhi Wang, Sudipta Dubey, Xin Lu, Qiang Yao, Xiaotong Chen
Quantum entanglement is a fundamental phenomenon that, on the one hand, reveals deep connections between quantum mechanics, gravity and spacetime 1,2 , and on the other hand, has practical applications as a key resource in quantum information process
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e1e84d3512f7406c606e5494b264d2c
http://arxiv.org/abs/1808.09984
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10
Tuning equilibration of quantum Hall edge states in graphene - role of crossed electric and magnetic fields
Autor: Sudipta Dubey, Mandar M. Deshmukh
We probe quantum Hall effect in a tunable 1-D lateral superlattice (SL) in graphene created using electrostatic gates. Lack of equilibration is observed along edge states formed by electrostatic gates inside the superlattice. We create strong local e
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eea151f1086a5d21ad3f8d1fe5e73a31
http://arxiv.org/abs/1504.04952
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