Journal
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
Volume 12, Issue 1-4, Pages 296-299Publisher
ELSEVIER
DOI: 10.1016/S1386-9477(01)00349-6
Keywords
Wigner solid; microwave; double layer hole systems
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This paper presents the first microwave absorption measurements on the magnetically-induced insulating phase of a bilayer hole system, The experiments provide strong evidence that the insulating phase is a bilayer solid that is more strongly pinned than a single layer system of comparable density. Transport measurements on the bilayer hole system show an activated behaviour, The results are consistent with a model in which. at a threshold field. the solid depins from the background pinning potentials and is able to slide en masse through the background semiconductor crystal. (C) 2002 Elsevier Science B.V. All rights reserved.
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