Title of article
Signatures of composite-fermion metals in electron bilayers at νT=1
Author/Authors
Biswajit Karmakar، نويسنده , , Stefano Luin، نويسنده , , Vittorio Pellegrini، نويسنده , , Aron Pinczuk، نويسنده , , Brian S. Dennis، نويسنده , , Loren N. Pfeiffer، نويسنده , , Ken W. West، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2008
Pages
3
From page
1312
To page
1314
Abstract
Composite-fermion metals occur in the quantum Hall bilayers at total Landau level filling fraction νT=1 as the tunneling gap ΔSAS collapses by application of in-plane magnetic fields. Experimental evidence is obtained from the observation of a spin continuum below the Zeeman energy by resonant inelastic light scattering. These low-lying spin modes are assigned to quasi-particle excitations, where spin and composite-fermion Landau level index change simultaneously.
Keywords
Quantum Hall bilayers , Composite-fermion metal , Phase transition , Inelastic light scattering
Journal title
Physica E Low-dimensional Systems and Nanostructures
Serial Year
2008
Journal title
Physica E Low-dimensional Systems and Nanostructures
Record number
1047055
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