Zobrazeno 1 - 10
of 437
pro vyhledávání: '"Marek Potemski"'
Autor:
Piotr Kapuściński, Alex Delhomme, Diana Vaclavkova, Artur O. Slobodeniuk, Magdalena Grzeszczyk, Miroslav Bartos, Kenji Watanabe, Takashi Taniguchi, Clément Faugeras, Marek Potemski
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-6 (2021)
Excitonic physics dominates the optical response of semiconductor monolayers but single particle band structure parameters are hard to probe experimentally. Here, spin-orbit splitting in the conduction band of monolayer WSe2 is revealed by the identi
Externí odkaz:
https://doaj.org/article/06c77de96f4049469aced268fc74e4b7
Autor:
Jan Wyzula, Xin Lu, David Santos‐Cottin, Dibya Kanti Mukherjee, Ivan Mohelský, Florian Le Mardelé, Jiří Novák, Mario Novak, Raman Sankar, Yuriy Krupko, Benjamin A. Piot, Wei‐Li Lee, Ana Akrap, Marek Potemski, Mark O. Goerbig, Milan Orlita
Publikováno v:
Advanced Science, Vol 9, Iss 23, Pp n/a-n/a (2022)
Abstract Optical response of crystalline solids is to a large extent driven by excitations that promote electrons among individual bands. This allows one to apply optical and magneto‐optical methods to determine experimentally the energy band gap
Externí odkaz:
https://doaj.org/article/dd08d5f9f4334e1291bad668ef2c54c8
Autor:
Thilo Hahn, Diana Vaclavkova, Miroslav Bartos, Karol Nogajewski, Marek Potemski, Kenji Watanabe, Takashi Taniguchi, Paweł Machnikowski, Tilmann Kuhn, Jacek Kasprzak, Daniel Wigger
Publikováno v:
Advanced Science, Vol 9, Iss 1, Pp n/a-n/a (2022)
Abstract Monolayers of transition metal dichalcogenides display a strong excitonic optical response. Additionally encapsulating the monolayer with hexagonal boron nitride allows to reach the limit of a purely homogeneously broadened exciton system. O
Externí odkaz:
https://doaj.org/article/bd0f3d7a2e244f60a7974403afe14736
Autor:
Alexeï Bosak, Sofia-Michaela Souliou, Clément Faugeras, Rolf Heid, Maciej R. Molas, Rong-Yan Chen, Nan-Lin Wang, Marek Potemski, Matthieu Le Tacon
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033020 (2021)
Since their theoretical prediction by Peierls in the 1930s, charge density waves (CDWs have been one of the most commonly encountered electronic phases in low-dimensional metallic systems. The instability mechanism originally proposed combines Fermi
Externí odkaz:
https://doaj.org/article/8116ae981f98475cbe09f5b247777325
Autor:
Vladimir V. Rumyantsev, Anna A. Razova, Leonid S. Bovkun, Dmitriy A. Tatarskiy, Vladimir Y. Mikhailovskii, Maksim S. Zholudev, Anton V. Ikonnikov, Tatyana A. Uaman Svetikova, Kirill V. Maremyanin, Vladimir V. Utochkin, Mikhail A. Fadeev, Vladimir G. Remesnik, Vladimir Y. Aleshkin, Nikolay N. Mikhailov, Sergey A. Dvoretsky, Marek Potemski, Milan Orlita, Vladimir I. Gavrilenko, Sergey V. Morozov
Publikováno v:
Nanomaterials, Vol 11, Iss 7, p 1855 (2021)
HgTe/CdHgTe quantum well (QW) heterostructures have attracted a lot of interest recently due to insights they provided towards the physics of topological insulators and massless Dirac fermions. Our work focuses on HgCdTe QWs with the energy spectrum
Externí odkaz:
https://doaj.org/article/47676bfab83e4322baee5bed2a4988ac
Autor:
Ashish Arora, Matthias Drüppel, Robert Schmidt, Thorsten Deilmann, Robert Schneider, Maciej R. Molas, Philipp Marauhn, Steffen Michaelis de Vasconcellos, Marek Potemski, Michael Rohlfing, Rudolf Bratschitsch
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-6 (2017)
Excitons, quasi-particles of bound electron-hole pairs, are at the core of the optoelectronic properties of layered transition metal dichalcogenides. Here, the authors unveil the presence of interlayer excitons in bulk van der Waals semiconductors, a
Externí odkaz:
https://doaj.org/article/fb40a124507640ee95609eabe71d94a6
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Abstract Resonant Raman scattering is investigated in monolayer WS2 at low temperature with the aid of an unconventional technique, i.e., Raman scattering excitation (RSE) spectroscopy. The RSE spectrum is made up by sweeping the excitation energy, w
Externí odkaz:
https://doaj.org/article/2a0140f19ac140699c6de8fe5e16bfc6
Autor:
Ashish Arora, Matthias Drüppel, Robert Schmidt, Thorsten Deilmann, Robert Schneider, Maciej R. Molas, Philipp Marauhn, Steffen Michaelis de Vasconcellos, Marek Potemski, Michael Rohlfing, Rudolf Bratschitsch
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-1 (2017)
A correction to this article has been published and is linked from the HTML version of this article.
Externí odkaz:
https://doaj.org/article/328cc01228c84eaf9dd68db37f2e3fd3
Autor:
Martin Mittendorff, Milan Orlita, Marek Potemski, Claire Berger, Walter A de Heer, Harald Schneider, Manfred Helm, Stephan Winnerl
Publikováno v:
New Journal of Physics, Vol 16, Iss 12, p 123021 (2014)
We investigate the low-energy carrier dynamics in Landau quantized multilayer epitaxial graphene on $(000\bar{1})$ SiC, using 14 meV photons. The THz absorption is dominated by Landau-level transitions within the conduction bands of several graphene
Externí odkaz:
https://doaj.org/article/c135f5b4c52449d5be549698e00b9bc0
Autor:
Karolina Ewa Połczyńska, Simon Le Denmat, Takashi Taniguchi, Kenji Watanabe, Marek Potemski, Piotr Kossacki, Wojciech Pacuski, Jacek Kasprzak
Publikováno v:
Nanoscale. 15:6941-6946
Using four-wave mixing microscopy, we measure the coherent response and ultrafast dynamics of excitons and trions in MoSe$_2$ monolayers grown by molecular beam epitaxy on thin films of hexagonal boron nitride. We assess inhomogeneous and homogeneous