Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Goryca, Mateusz"'
Autor:
Fąs, Tomasz, Wlazło, Mateusz, Birowska, Magdalena, Rybak, Miłosz, Zinkiewicz, Małgorzata, Oleschko, Leon, Goryca, Mateusz, Gondek, Łukasz, Camargo, Bruno, Szczytko, Jacek, Budniak, Adam K., Amouyal, Yaron, Lifshitz, Efrat, Suffczyński, Jan
Unusual magnetic properties of Van der Waals type antiferromagnetic semiconductors make them highly attractive for spintronics and optoelectronics. A link between the magnetic and optical properties of those materials, required for practical applicat
Externí odkaz:
http://arxiv.org/abs/2407.17912
In monolayer transition-metal dichalcogenide semiconductors, many-body correlations can manifest in optical spectra when photoexcited electron-hole pairs (excitons) are introduced into a 2D Fermi sea of mobile carriers. At low carrier densities, the
Externí odkaz:
http://arxiv.org/abs/2201.00780
Autor:
Li, Jing, Goryca, Mateusz, Wilson, Nathan P., Stier, Andreas V., Xu, Xiaodong, Crooker, Scott A.
Publikováno v:
Phys. Rev. Lett. 125, 147602 (2020)
We report magneto-absorption spectroscopy of gated WSe$_2$ monolayers in high magnetic fields up to 60~T. When doped with a 2D Fermi sea of mobile holes, well-resolved sequences of optical transitions are observed in both $\sigma^\pm$ circular polari
Externí odkaz:
http://arxiv.org/abs/2008.02374
Autor:
Smoleński, Tomasz, Kazimierczuk, Tomasz, Goryca, Mateusz, Nogajewski, Karol, Potemski, Marek, Kossacki, Piotr
Zeeman effect induced by the magnetic field introduces a splitting between the two valleys at K$^+$ and K$^-$ points of the Brillouin zone in monolayer semiconducting transition metal dichalcogenides. In consequence, the photoluminescence signal exhi
Externí odkaz:
http://arxiv.org/abs/2005.14095
Autor:
Łopion, Aleksandra, Goryca, Mateusz, Smoleński, Tomasz, Oreszczuk, Kacper, Nogajewski, Karol, Molas, Maciej R., Potemski, Marek, Kossacki, Piotr
At cryogenic temperatures, the photoluminescence spectrum of monolayer WSe2features a num-ber of lines related to the recombination of so-called localized excitons. The intensity of these lines strongly decreases with increasing temperature. In order
Externí odkaz:
http://arxiv.org/abs/1912.02573
Autor:
Kazimierczuk, Tomasz, Bogucki, Aleksander, Smoleński, Tomasz, Goryca, Mateusz, Faugeras, Clément, Machnikowski, Paweł, Potemski, Marek, Kossacki, Piotr
Publikováno v:
Phys. Rev. B 100, 075401 (2019)
We study the relaxation dynamics of the electron system in graphene flakes under Landau quantization regime using a novel approach of time-resolved Raman scattering. The non-resonant character of the experiment allows us to analyze the field dependen
Externí odkaz:
http://arxiv.org/abs/1810.08024
Autor:
Smoleński, Tomasz, Kazimierczuk, Tomasz, Goryca, Mateusz, Molas, Maciej R., Nogajewski, Karol, Faugeras, Clement, Potemski, Marek, Kossacki, Piotr
Optical orientation of localized/bound excitons is shown to be effectively enhanced by the application of magnetic fields as low as 20 mT in monolayer WS$_2$. At low temperatures, the evolution of the polarization degree of different emission lines o
Externí odkaz:
http://arxiv.org/abs/1703.01129
Autor:
Oreszczuk, Kacper, Goryca, Mateusz, Pacuski, Wojciech, Smoleński, Tomasz, Nawrocki, Michał, Kossacki, Piotr
Publikováno v:
Phys. Rev. B 96, 205436 (2017)
We present a detailed spectroscopic study of the photoluminescence quenching in an epitaxial structures containing CdSe/ZnSe quantum dots doped with low concentration of Mn$^{2+}$ ions. Our time-resolved and time-integrated experiments reveal the ori
Externí odkaz:
http://arxiv.org/abs/1702.06687
Autor:
Koperski, Maciej, Smoleński, Tomasz, Goryca, Mateusz, Wojnar, Piotr, Potemski, Marek, Kossacki, Piotr
Publikováno v:
Phys. Rev. B 94, 245439 (2016)
We present the results of a comprehensive magneto-optical characterization of single CdTe quantum dots containing a few Mn2+ ions. We find that some quantum dots exhibit an unexpected evolution of excitonic photoluminescence spectrum with the magneti
Externí odkaz:
http://arxiv.org/abs/1608.06260
Autor:
Goryca, Mateusz
Ce travail présente l'étude de la dynamique de spins d'ions Mn insérés dans des structures de CdTe de faibles dimensions. L'accent est plus particulièrement mis sur des boîtes quantiques individuelles de CdTe contenant un ion Mn unique, ce qui
Externí odkaz:
http://www.theses.fr/2011GRENY076/document