Zobrazeno 1 - 10
of 58
pro vyhledávání: '"de Heer, Walter A."'
Autor:
Wendler, Florian, Mittendorff, Martin, König-Otto, Jacob C., Brem, Samuel, Berger, Claire, de Heer, Walter A., Böttger, Roman, Schneider, Harald, Helm, Manfred, Winnerl, Stephan, Malic, Ermin
Publikováno v:
Wendler, Florian, et al. "Symmetry-Breaking Supercollisions in Landau-Quantized Graphene." Physical review letters 119.6 (2017): 067405
Recent pump-probe experiments performed on graphene in a perpendicular magnetic field have revealed carrier relaxation times ranging from picoseconds to nanoseconds depending on the quality of the sample. To explain this surprising behavior, we propo
Externí odkaz:
http://arxiv.org/abs/1801.08463
Autor:
Tan, Liang Z., Orlita, Milan, Potemski, Marek, Palmer, James, Berger, Claire, de Heer, Walter A., Louie, Steven G., Martinez, Gérard
Publikováno v:
Phys. Rev. B 91, 235122 (2015)
Refined infrared magnetotransmission experiments have been performed in magnetic fields B up to 35 T on a series of multilayer epitaxial graphene samples. Following the main optical transition involving the n=0 Landau level (LL), we observe a new abs
Externí odkaz:
http://arxiv.org/abs/1506.06680
Autor:
Mittendorff, Martin, Winzer, Torben, Malic, Ermin, Knorr, Andreas, Berger, Claire, de Heer, Walter A., Schneider, Harald, Helm, Manfred, Winnerl, Stephan
Publikováno v:
Nano Lett., 2014, 14 (3)
We investigate the polarization dependence of the carrier excitation and relaxation in epitaxial multilayer graphene. Degenerate pump-probe experiments with a temporal resolution of 30 fs are performed for different rotation angles of the pump-pulse
Externí odkaz:
http://arxiv.org/abs/1312.5860
Autor:
Mitrofanov, Oleg, Yu, Wenlong, Thompson, Robert J., Jiang, Yuxuan, Brener, Igal, Pan, Wei, Berger, Claire, de Heer, Walter A., Jiang, Zhigang
Epitaxial graphene mesas and ribbons are investigated using terahertz (THz) nearfield microscopy to probe surface plasmon excitation and THz transmission properties on the sub-wavelength scale. The THz near-field images show variation of graphene pro
Externí odkaz:
http://arxiv.org/abs/1307.7374
A method is proposed to extract pure Raman spectrum of epitaxial graphene on SiC by using a Non-negative Matrix Factorization. It overcomes problems of negative spectral intensity and poorly resolved spectra resulting from a simple subtraction of a S
Externí odkaz:
http://arxiv.org/abs/1307.0421
Autor:
Winnerl, Stephan, Orlita, Milan, Plochocka, Paulina, Kossacki, Piotr, Potemski, Marek, Winzer, Torben, Malic, Ermin, Knorr, Andreas, Sprinkle, Michael, Berger, Claire, de Heer, Walter A., Schneider, Harald, Helm, Manfred
Publikováno v:
Phys. Rev. Lett. 107, 237401 (2011)
We study the carrier dynamics in epitaxially grown graphene in the range of photon energies from 10 - 250 meV. The experiments complemented by microscopic modeling reveal that the carrier relaxation is significantly slowed down as the photon energy i
Externí odkaz:
http://arxiv.org/abs/1105.2518
Autor:
Orlita, Milan, Faugeras, Clement, Plochocka, Paulina, Neugebauer, Petr, Martinez, Gerard, Maude, Duncan K., Barra, Anne-Laure, Sprinkle, Mike, Berger, Claire, de Heer, Walter A., Potemski, Marek
Publikováno v:
Phys. Rev. Lett. 101, 267601 (2008)
Multi-layer epitaxial graphene (MEG) is investigated using far infrared (FIR) transmission experiments in the different limits of low magnetic fields and high temperatures. The cyclotron-resonance like absorption is observed at low temperature in mag
Externí odkaz:
http://arxiv.org/abs/0808.3662
Autor:
Wei, Zhongqing, Wang, Debin, Kim, Suenne, Kim, Soo-Young, Hu, Yike, Yakes, Michael K., Laracuente, Arnaldo R., Dai, Zhenting, Marder, Seth R., Berger, Claire, King, William P., de Heer, Walter A., Sheehan, Paul E., Riedo, Elisa
Publikováno v:
Science, 2010 Jun 01. 328(5984), 1373-1376.
Externí odkaz:
https://www.jstor.org/stable/40656067
Akademický článek
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Autor:
Puybaret, Renaud, Sundaram, Suresh, El Gmili, Youssef, Jordan, Matthew, Salvestrini, Jean-Paul, Voss, Paul L, De Heer, Walter, Berger, Claire, Ougazzaden, Abdallah
Publikováno v:
ICNS-11
ICNS-11, 2015, Pekin, China
ICNS-11, 2015, Pekin, China
International audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6a048c74bb7c5f534067bcb39f95b947
https://hal.archives-ouvertes.fr/hal-01257101
https://hal.archives-ouvertes.fr/hal-01257101