Zobrazeno 1 - 10
of 177
pro vyhledávání: '"Karczewski, Grzegorz"'
Autor:
Tielrooij, Klaas-Jan, Principi, Alessandro, Reig, David Saleta, Block, Alexander, Varghese, Sebin, Schreyeck, Steffen, Brunner, Karl, Karczewski, Grzegorz, Ilyakov, Igor, Ponomaryov, Oleksiy, de Oliveira, Thales V. A. G., Chen, Min, Deinert, Jan-Christoph, Carbonell, Carmen Gomez, Valenzuela, Sergio O., Molenkamp, Laurens W., Kiessling, Tobias, Astakhov, Georgy V., Kovalev, Sergey
Publikováno v:
Light Sci Appl 11, 315 (2022)
Achieving efficient, high-power harmonic generation in the terahertz spectral domain has technological applications, for example in sixth generation (6G) communication networks. Massless Dirac fermions possess extremely large terahertz nonlinear susc
Externí odkaz:
http://arxiv.org/abs/2211.00465
Autor:
Wojnar, Piotr, Plachta, Jakub, Reszka, Anna, Lahnemann, Jonas, Kaleta, Anna, Kret, Slawomir, Baranowski, Piotr, Wojcik, Maciej, Kowalski, Bogdan J., Baczewski, Lech T., Karczewski, Grzegorz, Wojtowicz, Tomasz
Publikováno v:
Nanotechnology 32, 495202 (2021)
ZnTe/CdSe/(Zn,Mg)Te core/double-shell nanowires are grown by molecular beam epitaxy by employing the vapor-liquid-solid growth mechanism assisted with gold catalysts. A photoluminescence study of these structures reveals the presence of an optical em
Externí odkaz:
http://arxiv.org/abs/2109.00272
Autor:
Wichrowska, Karolina, Wosinski, Tadeusz, Domagala, Jaroslaw Z., Kret, Slawomir, Chusnutdinow, Sergij, Karczewski, Grzegorz
Publikováno v:
Semicond. Sci. Technol. 36, 045022 (2021)
Structural defects in the p-ZnTe/i-CdTe/n-CdTe single-crystalline heterojunctions designed for photovoltaic applications have been investigated by transmission electron microscopy (TEM) and deep-level transient spectroscopy (DLTS). Lattice parameters
Externí odkaz:
http://arxiv.org/abs/1912.11280
Autor:
Schreyeck, Steffen, Brunner, Karl, Molenkamp, Laurens W., Karczewski, Grzegorz, Schmitt, Martin, Sessi, Paolo, Vogt, Matthias, Wilfert, Stefan, Odobesko, Artem B., Bode, Matthias
Publikováno v:
Phys. Rev. Materials 3, 024203 (2019)
SnTe belongs to the recently discovered class of topological crystalline insulators. Here we study the formation of line defects which break crystalline symmetry by strain in thin SnTe films. Strained SnTe(111) films are grown by molecular beam epita
Externí odkaz:
http://arxiv.org/abs/1811.12722
Autor:
Kazakov, Aleksandr, Simion, George, Lyanda-Geller, Yuli, Kolkovsky, Valery, Adamus, Zbigniew, Karczewski, Grzegorz, Wojtowicz, Tomasz, Rokhinson, Leonid P.
Publikováno v:
Phys. Rev. Lett. 119, 046803 (2017)
In this work we use electrostatic control of quantum Hall ferromagnetic transitions in CdMnTe quantum wells to study electron transport through individual domain walls (DWs) induced at a specific location. These DWs are formed due to hybridization of
Externí odkaz:
http://arxiv.org/abs/1702.03279
Autor:
Karimi, Shahrzad, Baboux, Florent, Perez, Florent, Ullrich, Carsten A., Karczewski, Grzegorz, Wojtowicz, Tomasz
Publikováno v:
Phys. Rev. B 96, 045301 (2017)
Larmor's theorem holds for magnetic systems that are invariant under spin rotation. In the presence of spin-orbit coupling this invariance is lost and Larmor's theorem is broken: for systems of interacting electrons, this gives rise to a subtle inter
Externí odkaz:
http://arxiv.org/abs/1612.04314
Spinodal decomposition process in the system of immiscible PbTe/CdTe compounds is analyzed as an example of a self-organizing structure. The immiscibility of the constituents leads to the observed morphological transformations like anisotropy driven
Externí odkaz:
http://arxiv.org/abs/1605.07820
Autor:
Kazakov, Aleksandr, Simion, George, Lyanda-Geller, Yuli, Kolkovsky, Valery, Adamus, Zbigniew, Karczewski, Grzegorz, Wojtowicz, Tomasz, Rokhinson, Leonid P.
Publikováno v:
Phys. Rev. B 94, 075309 (2016)
Ferromagnetic transitions between quantum Hall states with different polarization at a fixed filling factor can be studied by varying the ratio of cyclotron and Zeeman energies in tilted magnetic field experiments. However, an ability to locally cont
Externí odkaz:
http://arxiv.org/abs/1605.02023
Autor:
Kreilkamp, Lars E., Akimov, Ilya A., Belotelov, Vladimir I., Glavin, Boris A., Litvin, Leonid, Rudzinski, Axel, Kahl, Michael, Jede, Ralf, Wiater, Maciej, Wojtowicz, Tomasz, Karczewski, Grzegorz, Yakovlev, Dmitri R., Bayer, Manfred
Publikováno v:
Phys. Rev. B 93, 125404 (2016)
Excitation of coherent optical phonons in solids provides a pathway for ultrafast modulation of light on a sub-ps timescale. Here, we report on efficient 3.6 THz modulation of light reflected from hybrid metal/semiconductor plasmonic crystals caused
Externí odkaz:
http://arxiv.org/abs/1511.00610
Autor:
Baboux, Florent, Perez, Florent, Ullrich, Carsten A., D'Amico, Irene, Karczewski, Grzegorz, Wojtowicz, Tomasz
Publikováno v:
Phys. Rev. B (Rapid Communication) 87, 121303 (2013)
Spin-orbit (SO) fields in a spin-polarized electron gas are studied by angle-resolved inelastic light scattering on a CdMnTe quantum well. We demonstrate a striking organization and enhancement of SO fields acting on the collective spin excitation (s
Externí odkaz:
http://arxiv.org/abs/1310.7613