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Spin and charge density excitations and the collapse of the fractional quantum Hall state at nu=1/3

Abstract:
Inelastic light scattering from 2D electrons below 100 mK reveals collective charge and spin density excitations of the incompressible electron liquid at Landau level filling factor v -1/3 and provides experimental evidence for a magnetoroton minimum in the charge density dispersion curve. The temperature scale for the collapse of electron correlation in the spin-polarized electron liquid is determined by thermal excitation of long-wavelength spin waves.
Publication status:
Published

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Publisher copy:
10.1103/PhysRevLett.78.4095

Authors


Davies, HDM More by this author
Harris, JC More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Journal:
PHYSICAL REVIEW LETTERS
Volume:
78
Issue:
21
Pages:
4095-4098
Publication date:
1997-05-26
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:bded250f-86ee-41b6-bed2-b2989ba224d0
Source identifiers:
22492
Local pid:
pubs:22492
Language:
English

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