Zobrazeno 1 - 10 of 248 pro vyhledávání: '"Thierry Amand"'
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Akademický článek
Spin/valley pumping of resident electrons in WSe2 and WS2 monolayers
Autor: Cedric Robert, Sangjun Park, Fabian Cadiz, Laurent Lombez, Lei Ren, Hans Tornatzky, Alistair Rowe, Daniel Paget, Fausto Sirotti, Min Yang, Dinh Van Tuan, Takashi Taniguchi, Bernhard Urbaszek, Kenji Watanabe, Thierry Amand, Hanan Dery, Xavier Marie
Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Optical excitation of transition metal dichalcogenide monolayers mostly generates excitons species with inherently short lifetime and spin/valley relaxation time. Here, the authors demonstrate efficient spin/valley optical pumping of resident electro
Externí odkaz: https://doaj.org/article/35d56520ea074ebbbde9036a4f07a084
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2
Second harmonic generation control in twisted bilayers of transition metal dichalcogenides
Autor: Ioannis Paradisanos, Andres Manuel Saiz Raven, Thierry Amand, Cedric Robert, Pierre Renucci, Kenji Watanabe, Takashi Taniguchi, Iann C. Gerber, Xavier Marie, Bernhard Urbaszek
Publikováno v: Physical Review B
Physical Review B, 2022, 105 (11), pp.115420. ⟨10.1103/PhysRevB.105.115420⟩
The twist angle in transition metal dichalcogenide (TMD) heterobilayers is a compelling degree of freedom that determines electron correlations and the period of lateral confinement of moir\'e excitons. Here we perform polarization-resolved second ha
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1befe0b2c0c624dfcdffa19f3be5c0b3
https://doi.org/10.1103/physrevb.105.115420
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3
Spin/valley pumping of resident electrons in WSe2 and WS2 monolayers
Autor: Hanan Dery, Thierry Amand, Lei Ren, Takashi Taniguchi, Daniel Paget, Xavier Marie, Fausto Sirotti, Dinh Van Tuan, Bernhard Urbaszek, Alistair Rowe, Sangjun Park, Min Yang, Kenji Watanabe, Laurent Lombez, Hans Tornatzky, Fabian Cadiz, Cedric Robert
Publikováno v: Nature Communications
Nature Communications, 2021, 12 (1), ⟨10.1038/s41467-021-25747-5⟩
Nature Communications, Nature Publishing Group, 2021, 12 (1), ⟨10.1038/s41467-021-25747-5⟩
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Monolayers of transition metal dichalcogenides are ideal materials to control both spin and valley degrees of freedom either electrically or optically. Nevertheless, optical excitation mostly generates excitons species with inherently short lifetime
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79e4e319e54af72eb98111b741a6e782
https://hal.science/hal-03410584/document
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4
Polarization-Sensitive Photodetector Based on GaAs1−xNx
Autor: Alejandro Kunold, Andrea Balocchi, V. K. Kalevich, Xavier Marie, V. G. Ibarra-Sierra, J. C. Sandoval-Santana, R. S. Joshya, Thierry Amand, L. A. Bakaleinikov, Hélène Carrère, E. L. Ivchenko
Publikováno v: Physical Review Applied. 15
We propose and numerically simulate an optoelectronic compact circular polarimeter. It allows for electrical measurement of the degree of circular polarization and light intensity at room temperature for a wide range of incidence angles in a single s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::94d36cd99403a0d9cc6ee9abf8b4eac3
https://doi.org/10.1103/physrevapplied.15.064040
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5
Hyperfine Interaction and Shockley–Read–Hall Recombination in Semiconductors
Autor: Thierry Amand, V. K. Kalevich, Andrea Balocchi, E. L. Ivchenko, Xavier Marie, Alejandro Kunold
Publikováno v: Semiconductors. 53:1175-1181
Experimental and theoretical studies on optical orientation and spin-dependent recombination in a semiconductor in a magnetic field under the normal incidence of circularly polarized radiation onto the sample surface are reviewed. The experiments wer
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::17c86449c1492c696cb17199aa666845
https://doi.org/10.1134/s1063782619090070
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6
Measurement of Conduction and Valence Bands g -Factors in a Transition Metal Dichalcogenide Monolayer
Autor: Mingming Yang, B. Urbaszek, T. Taniguchi, Thierry Amand, Hanan Dery, Xavier Marie, Lei Ren, D. van Tuan, D. Lagarde, Cedric Robert, Kenji Watanabe, E. Courtade
Publikováno v: Physical Review Letters
Physical Review Letters, American Physical Society, 2021, 126 (6), ⟨10.1103/PhysRevLett.126.067403⟩
Physical Review Letters, 2021, 126 (6), ⟨10.1103/PhysRevLett.126.067403⟩
The electron valley and spin degree of freedom in monolayer transition-metal dichalcogenides can be manipulated in optical and transport measurements performed in magnetic fields. The key parameter for determining the Zeeman splitting, namely, the se
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b51948c8eff606d4de1f95d9c96327f3
https://hal.archives-ouvertes.fr/hal-03451822
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7
Chiral photodetector based on GaAsN
Autor: R. S. Joshya, Thierry Amand, E. L. Ivchenko, Alejandro Kunold, Hélène Carrère, V. K. Kalevich, J. C. Sandoval-Santana, Xavier Marie, Andrea Balocchi, V. G. Ibarra-Sierra
The detection of light helicity is key to several research and industrial applications from drugs production to optical communications. However, the direct measurement of the light helicity is inherently impossible with conventional photodetectors ba
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0be7bb32e5c1ee8ad86e092754dd21e2
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8
Optical properties of exciton in two-dimensional transition metal dichalcogenide nanobubbles
Autor: Sihem Jaziri, Adlen Smiri, Thierry Amand
Strain in two-dimensional (2D) transition metal dichalcogenide (TMD) has led to localized states with exciting optical properties, in particular in view of designing one photon sources. The naturally formed of the MoS2 monolayer deposed on hBN substr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b31f6cbb17dada2eec7535ded47dd70
http://arxiv.org/abs/2005.03166
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9
Electron-nucleus spin-correlation conservation of spin-dependent recombination in Ga2+ centers
Autor: M. M. Afanasiev, Thierry Amand, V. G. Ibarra-Sierra, Alejandro Kunold, J. C. Sandoval-Santana, Andrea Balocchi, Xavier Marie, L. A. Bakaleinikov, Hélène Carrère, E. L. Ivchenko, V. K. Kalevich
Publikováno v: Physical Review B. 101
Spin-dependent recombination in GaAsN offers many interesting possibilities in the design of spintronic devices mostly due to its astounding capability to reach conduction band electron spin polarization close to 100% at room temperature. The mechani
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d98aa28c10080588f045ac28c7c70b1b
https://doi.org/10.1103/physrevb.101.075201
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10
Measurement of the Spin-Forbidden Dark Excitons in MoS2 and MoSe2 monolayers
Autor: Piotr Kapuscinski, Bo Han, Bernhard Urbaszek, T. Taniguchi, Cedric Robert, Kenji Watanabe, Maciej R. Molas, Clément Faugeras, Marek Potemski, A. Delhomme, Xavier Marie, Miroslav Bartos, Thierry Amand
Publikováno v: Nature Communications
Nature Communications, Nature Publishing Group, 2020, 11, pp.4037. ⟨10.1038/s41467-020-17608-4⟩
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Nature Communications, 2020, 11, pp.4037. ⟨10.1038/s41467-020-17608-4⟩
Excitons with binding energies of a few hundreds of meV control the optical properties of transition metal dichalcogenide monolayers. Knowledge of the fine structure of these excitons is therefore essential to understand the optoelectronic properties
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fd77e1f7b974bc436d380c0cede97dc
https://hal.archives-ouvertes.fr/hal-03026188
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