Search Results - "Pinczuk, A."

Two-Dimensional Mott-Hubbard Electrons in an Artificial Honeycomb Lattice by Singha, A., Gibertini, M., Karmakar, B., Yuan, S., Polini, M., Vignale, G., Katsnelson, M. I., Pinczuk, A., Pfeiffer, L. N., West, K. W., Pellegrini, V.

“…Artificial crystal lattices can be used to tune repulsive Coulomb interactions between electrons. We trapped electrons, confined as a two-dimensional gas in a…”
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Influence of copper crystal surface on the CVD growth of large area monolayer graphene by Zhao, L., Rim, K.T., Zhou, H., He, R., Heinz, T.F., Pinczuk, A., Flynn, G.W., Pasupathy, A.N.

“…We study the influence of the surface structure of copper single crystals on the growth of large area monolayer graphene by chemical vapor deposition (CVD) in…”
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Resonant inelastic light scattering investigation of low-lying gapped excitations in the quantum fluid at ν=5/2 by Wurstbauer, U, West, K W, Pfeiffer, L N, Pinczuk, A

“…The low-lying neutral excitation spectrum of the incompressible quantum Hall fluid at ν=5/2 is investigated by inelastic light scattering. Gapped modes are…”
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Fractionally charged skyrmions in fractional quantum Hall effect by Balram, Ajit C., Wurstbauer, U., Wójs, A., Pinczuk, A., Jain, J. K.

“…The fractional quantum Hall effect has inspired searches for exotic emergent topological particles, such as fractionally charged excitations, composite…”
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Use of micro-photoluminescence as a contactless measure of the 2D electron density in a GaAs quantum well by Kamburov, D., Baldwin, K. W., West, K. W., Lyon, S., Pfeiffer, L. N., Pinczuk, A.

“…We compare micro-photoluminescence (μPL) as a measure of the electron density in a clean, two-dimensional (2D) system confined in a GaAs quantum well (QW) to…”
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Gapped excitations of unconventional fractional quantum Hall effect states in the second Landau level by Wurstbauer, U., Levy, A. L., Pinczuk, A., West, K. W., Pfeiffer, L. N., Manfra, M. J., Gardner, G. C., Watson, J. D.

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Optical Emission Spectroscopy Study of Competing Phases of Electrons in the Second Landau Level by 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

“…Quantum phases of electrons in the filling factor range 2≤ν≤3 are probed by the weak optical emission from the partially populated second Landau level and spin…”
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Observation of nonconventional spin waves in composite-fermion ferromagnets by Wurstbauer, U, Majumder, D, Mandal, S S, Dujovne, I, Rhone, T D, Dennis, B S, Rigosi, A F, Jain, J K, Pinczuk, A, West, K W, Pfeiffer, L N

“…We find unexpected low energy excitations of fully spin-polarized composite-fermion ferromagnets in the fractional quantum Hall liquid, resulting from a…”
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Optical absorption to probe the quantum Hall ferromagnet at filling factor nu=1 by Plochocka, P, Schneider, J M, Maude, D K, Potemski, M, Rappaport, M, Umansky, V, Bar-Joseph, I, Groshaus, J G, Gallais, Y, Pinczuk, A

“…Optical absorption measurements are used to probe the spin polarization in the integer and fractional quantum Hall effect regimes. The system is fully spin…”
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Probing the spin states of three interacting electrons in quantum dots by Gamucci, A., Pellegrini, V., Singha, A., Pinczuk, A., Pfeiffer, L. N., West, K. W., Rontani, M.

“…We observe a low-lying sharp spin mode of three interacting electrons in an array of nanofabricated AlGaAs/GaAs quantum dots by means of resonant inelastic…”
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Absorption in the fractional quantum Hall regime: trion dichroism and spin polarization by Groshaus, J G, Plochocka-Polack, P, Rappaport, M, Umansky, V, Bar-Joseph, I, Dennis, B S, Pfeiffer, L N, West, K W, Gallais, Y, Pinczuk, A

“…We present measurements of optical interband absorption in the fractional quantum Hall regime in a GaAs quantum well in the range 0<nu<or=1. We investigate the…”
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Inelastic light scattering by low-lying excitations of electrons in low-dimensional semiconductors by Pellegrini, V., Pinczuk, A.

“…The low‐dimensional electron systems that reside in artificial semiconductor heterostructures of great perfection are a contemporary materials base for…”
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Nitrogen plasma annealing for low temperature Ta2O5 films by Alers, G. B., Fleming, R. M., Wong, Y. H., Dennis, B., Pinczuk, A., Redinbo, G., Urdahl, R., Ong, E., Hasan, Z.

“…A low temperature oxygen/nitrogen plasma process is reported that substantially reduces leakage currents in chemical vapor deposited (CVD) and physical vapor…”
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Splitting of long-wavelength modes of the fractional quantum hall liquid at nu = 1/3 by Hirjibehedin, C F, Dujovne, Irene, Pinczuk, A, Dennis, B S, Pfeiffer, L N, West, K W

“…Resonant inelastic light scattering experiments at nu = 1/3 reveal a novel splitting of the long-wavelength modes in the low energy spectrum of quasi-particle…”
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Composite-fermion spin excitations as nu approaches 1/2: interactions in the Fermi sea by Dujovne, Irene, Pinczuk, A, Kang, Moonsoo, Dennis, B S, Pfeiffer, L N, West, K W

“…Measurements of low-lying spin excitations by inelastic light scattering unveil a delicate balance between spin reversal and Fermi energies in the Fermi sea of…”
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Observation of collective excitations in the fractional quantum Hall effect by PINCZUK, A, DENNIS, B. S, PFEIFFER, L. N, WEST, K

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Observation of multiple magnetorotons in the fractional quantum Hall effect by Kang, M, Pinczuk, A, Dennis, B S, Pfeiffer, L N, West, K W

“…Magnetorotons in the dispersions of collective gap excitation modes of fractional quantum Hall liquids are measured in resonant inelastic light scattering…”
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Collective Excitations in the Dilute 2D Electron System by Eriksson, M. A., Pinczuk, A., Dennis, B. S., Simon, S. H., Pfeiffer, L. N., West, K. W.

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Lasing from excitons in quantum wires by WEGSCHEIDER, W, PFEIFFER, L. N, DIGNAM, M. L, PINCZUK, A, WEST, K. W, MCCALL, S. L, HULL, R

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Fermi-edge singularity of spin-polarized electrons by Plochocka-Polack, P, Groshaus, J G, Rappaport, M, Umansky, V, Gallais, Y, Pinczuk, A, Bar-Joseph, I

“…We study the absorption spectrum of a two-dimensional electron gas (2DEG) in a magnetic field. We find that at low temperatures, when the 2DEG is spin…”
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