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Long-range spatial correlations in the exciton energy distribution in GaAs/AlGaAs quantum-wells
Y. Yayon, A. Esser, M. Rappaport +3
Variations in the width of a quantum well (QW) are known to be a source of broadening of the exciton line. Using low temperature near-field optical microscopy, we have exploited th…
On Ground State Tunneling in Mn-Acetate
K. M. Mertes, M. P. Sarachik, Y. Paltiel +5
We report Hall sensor measurements of the magnetic relaxation of Mn-acetate as a function of magnetic field applied along the easy axis of magnetization for a series of clos…
A Distribution of Tunnel Splittings in Mn-Acetate
K. M. Mertes, Yoko Suzuki, M. P. Sarachik +6
In magnetic fields applied parallel to the anisotropy axis, the relaxation of the magnetization of Mn measured for different sweep rates is shown to collapse onto a single s…
Observation of the logarithmic dispersion of high frequency edge excitations
N. Q. Balaban, U. Meirav, Hadas Shtrikman +1
We report phase sensitive measurements of microwave propagation through a high mobility two dimensional electron gas subjected to a perpendicular magnetic field. Two types of confi…