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EnglishComposite-fermion metals occur in the quantum Hall bilayers at total Landau level filling fraction v(T) = 1 as the tunneling gap Delta(SAS) 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. (C) 2007 Elsevier B.V. All rights reserved.
http://hdl.handle.net/11384/5177| Titolo: | Signatures of composite-fermion metals in electron bilayers at νT=1 |
| Autori interni: | LUIN, Stefano |
| Data di pubblicazione: | 2008 |
| Rivista: | PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES |
| Abstract: | Composite-fermion metals occur in the quantum Hall bilayers at total Landau level filling fraction v(T) = 1 as the tunneling gap Delta(SAS) 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. (C) 2007 Elsevier B.V. All rights reserved. |
| Handle: | http://hdl.handle.net/11384/5177 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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