NMR in the solid phase of two-dimensional electrons at high magnetic fields

G. Gervais; H. L. Stormer; D. C. Tsui; L. W. Engel; P. L. Kuhns; W. G. Moulton; A. P. Reyes; L. N. Pfeiffer; K. W. Baldwin; K. W. West

doi:10.1103/PhysRevB.72.041310

NMR in the solid phase of two-dimensional electrons at high magnetic fields

G. Gervais, H. L. Stormer, D. C. Tsui, L. W. Engel, P. L. Kuhns, W. G. Moulton, A. P. Reyes, L. N. Pfeiffer, K. W. Baldwin, K. W. West

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16 Scopus citations

Abstract

We report on a magnetic resonance study in the electron solid phase of a low-disorder GaAs/AlGaAs sample at very high magnetic fields using a resistively detected NMR technique. An anomalous dispersivelike line shape is observed at the onset of the electron solid in the vicinity of the Landau filling ν=29,15 fractional quantum Hall state, reminiscent of the line shape observed near filling factor ν∼1. In contrast to this filling factor region, the spin-lattice relaxation time T1 in the electron solid is found to be very long, and does not correlate with either Rxx or the Landau filling factor. The dispersivelike line shapes observed in this regime suggests that the intricate interplay between the nuclear spin and the electronic transport may be modified by the formation of the electron solid.

Original language	English (US)
Article number	041310
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	72
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.72.041310
State	Published - Jul 15 2005
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.72.041310

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title = "NMR in the solid phase of two-dimensional electrons at high magnetic fields",

abstract = "We report on a magnetic resonance study in the electron solid phase of a low-disorder GaAs/AlGaAs sample at very high magnetic fields using a resistively detected NMR technique. An anomalous dispersivelike line shape is observed at the onset of the electron solid in the vicinity of the Landau filling ν=29,15 fractional quantum Hall state, reminiscent of the line shape observed near filling factor ν∼1. In contrast to this filling factor region, the spin-lattice relaxation time T1 in the electron solid is found to be very long, and does not correlate with either Rxx or the Landau filling factor. The dispersivelike line shapes observed in this regime suggests that the intricate interplay between the nuclear spin and the electronic transport may be modified by the formation of the electron solid.",

author = "G. Gervais and Stormer, {H. L.} and Tsui, {D. C.} and Engel, {L. W.} and Kuhns, {P. L.} and Moulton, {W. G.} and Reyes, {A. P.} and Pfeiffer, {L. N.} and Baldwin, {K. W.} and West, {K. W.}",

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T1 - NMR in the solid phase of two-dimensional electrons at high magnetic fields

AU - Gervais, G.

AU - Stormer, H. L.

AU - Tsui, D. C.

AU - Engel, L. W.

AU - Kuhns, P. L.

AU - Moulton, W. G.

AU - Reyes, A. P.

AU - Pfeiffer, L. N.

AU - Baldwin, K. W.

AU - West, K. W.

PY - 2005/7/15

Y1 - 2005/7/15

N2 - We report on a magnetic resonance study in the electron solid phase of a low-disorder GaAs/AlGaAs sample at very high magnetic fields using a resistively detected NMR technique. An anomalous dispersivelike line shape is observed at the onset of the electron solid in the vicinity of the Landau filling ν=29,15 fractional quantum Hall state, reminiscent of the line shape observed near filling factor ν∼1. In contrast to this filling factor region, the spin-lattice relaxation time T1 in the electron solid is found to be very long, and does not correlate with either Rxx or the Landau filling factor. The dispersivelike line shapes observed in this regime suggests that the intricate interplay between the nuclear spin and the electronic transport may be modified by the formation of the electron solid.

AB - We report on a magnetic resonance study in the electron solid phase of a low-disorder GaAs/AlGaAs sample at very high magnetic fields using a resistively detected NMR technique. An anomalous dispersivelike line shape is observed at the onset of the electron solid in the vicinity of the Landau filling ν=29,15 fractional quantum Hall state, reminiscent of the line shape observed near filling factor ν∼1. In contrast to this filling factor region, the spin-lattice relaxation time T1 in the electron solid is found to be very long, and does not correlate with either Rxx or the Landau filling factor. The dispersivelike line shapes observed in this regime suggests that the intricate interplay between the nuclear spin and the electronic transport may be modified by the formation of the electron solid.

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JF - Physical Review B - Condensed Matter and Materials Physics

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ER -

NMR in the solid phase of two-dimensional electrons at high magnetic fields

Abstract

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