Zobrazeno 1 - 10
of 1 313
pro vyhledávání: '"A, Pinczuk"'
Autor:
Liu, Ziyu, Wurstbauer, Ursula, Du, Lingjie, West, Ken W., Pfeiffer, Loren N., Manfra, Michael J., Pinczuk, Aron
Publikováno v:
Phys. Rev. Lett. 128, 017401 (2022)
Impacts of domain textures on low-lying neutral excitations in the bulk of fractional quantum Hall effect (FQHE) systems are probed by resonant inelastic light scattering. We demonstrate that large domains of quantum fluids support long-wavelength ne
Externí odkaz:
http://arxiv.org/abs/2201.02653
Autor:
Du, Lingjie, Liu, Ziyu, Wind, Shalom J., Pellegrini, Vittorio, West, Ken W., Fallahi, Saeed, Pfeiffer, Loren N., Manfra, Michael J., Pinczuk, Aron
Publikováno v:
Phys. Rev. Lett. 126, 106402 (2021)
Flat bands near M points in the Brillouin zone are key features of honeycomb symmetry in artificial graphene (AG) where electrons may condense into novel correlated phases. Here we report the observation of van Hove singularity doublet of AG in GaAs
Externí odkaz:
http://arxiv.org/abs/2103.14197
Autor:
Du, Lingjie, Wurstbauer, Ursula, West, Ken W., Pfeiffer, Loren N., Fallahi, Saeed, Gardner, Geoff C., Manfra, Michael J., Pinczuk, Aron
Publikováno v:
Science Advances 5, eaav3407 (2019)
Collective modes of exotic quantum fluids reveal underlying physical mechanisms responsible for emergent complex quantum ground states. We observe unexpected new collective modes in the fractional quantum Hall (FQH) regime: intra-Landau-level plasmon
Externí odkaz:
http://arxiv.org/abs/1902.02261
Autor:
Dietl, Sebastian, Wang, Sheng, Schuh, Dieter, Wegscheider, Werner, Kotthaus, Jörg P., Pinczuk, Aron, Holleitner, Alexander W., Wurstbauer, Ursula
Photogenerated excitonic ensembles confined in coupled GaAs quantum wells are probed by a complementary approach of emission spectroscopy and resonant inelastic light scattering. Lateral electrostatic trap geometries are used to create dense systems
Externí odkaz:
http://arxiv.org/abs/1612.04072
Autor:
Levy, A. L., Wurstbauer, U., Kuznetsova, Y. Y., Pinczuk, A., Pfeiffer, L. N., West, K. W., Manfra, M. J., Gardner, G. C., Watson, J. D.
Publikováno v:
Phys. Rev. Lett. 116, 016801 (2016)
Quantum phases of electrons in the filling factor range $2 \leq\nu\leq 3$ are probed by the weak optical emission from the partially populated second Landau level and spin wave measurements. Observations of optical emission include a multiplet of sha
Externí odkaz:
http://arxiv.org/abs/1512.04914
Autor:
Wurstbauer, U., Levy, A. L., Pinczuk, A., West, K. W., Pfeiffer, L. N., Manfra, M. J., Gardner, G. C., Watson, J. D.
Publikováno v:
Phys. Rev. B 92, 241407 (2015)
We report the observation of low-lying collective charge and spin excitations in the second Landau level at {\nu} = 2 + 1/3 and also for the very fragile states at {\nu} = 2 + 2/5, 2 + 3/8 in inelastic light scattering experiments. These modes exhibi
Externí odkaz:
http://arxiv.org/abs/1507.04939
Autor:
Scarabelli, Diego, Wang, Sheng, Kuznetsova, Yuliya Y., Pfeiffer, Loren N., West, Ken, Gardner, Geoff C., Manfra, Michael J., Pellegrini, Vittorio, Pinczuk, Aron, Wind, Shalom J.
The unusual electronic properties of graphene, which are a direct consequence of its two-dimensional (2D) honeycomb lattice, have attracted a great deal of attention in recent years. Creation of artificial lattices that recreate graphene's honeycomb
Externí odkaz:
http://arxiv.org/abs/1507.04390
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Publikováno v:
Nature Communications 6, Article number: 8981 (2015)
The fractional quantum Hall effect has inspired searches for exotic emergent topological particles, such as fractionally charged excitations, composite fermions, abelian and nonabelian anyons and Majorana fermions. Fractionally charged skyrmions, whi
Externí odkaz:
http://arxiv.org/abs/1406.4042
Autor:
Aliaj, Ilirjan, Pellegrini, Vittorio, Gamucci, Andrea, Karmakar, Biswajit, Pinczuk, Aron, Pfeiffer, Loren N., West, Ken W.
Publikováno v:
Phys. Rev. B 87, 161303(R) (2013)
Magneto-luminescence studies in electron bilayers reveal the hallmarks of the even-denominator and other quantum Hall states in the intensities and energies of the inter-band optical recombination lines. In the presence of a small tunneling gap betwe
Externí odkaz:
http://arxiv.org/abs/1212.2063