Details
| Original language | English |
|---|---|
| Pages (from-to) | 97-100 |
| Number of pages | 4 |
| Journal | Physica E: Low-Dimensional Systems and Nanostructures |
| Volume | 12 |
| Issue number | 1-4 |
| Publication status | Published - 1 Jan 2002 |
| Event | 14th International Conference on the - Prague, Czech Republic Duration: 30 Jul 2001 → 3 Aug 2001 |
Abstract
The compressibility of composite fermion metallic state in two-dimensional electron system (2DES) was measured. A comparative study of the derivative of the chemical potential with respect to the carrier density at zero magnetic field was performed. The derivatives were calculated from the bottom of the ground subband. This derivative was inversely proportional to the 2DES compressibility. The contribution of electron-electron interaction was found to be identical for metallic states of electrons at zero magnetic field and of composite fermions at Landau level filling 1/2.
Keywords
- Composite fermions, Compressibility, Fractional quantum Hall effect
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 12, No. 1-4, 01.01.2002, p. 97-100.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Measurements of the compressibility of the composite fermion metallic state in a 2D electron system
AU - Dorozhkin, S. I.
AU - Smet, J. H.
AU - Von Klitzing, K.
AU - Umansky, V.
AU - Wegscheider, W.
AU - Haug, R. J.
AU - Ploog, K.
N1 - Funding information: Partial support of this work by INTAS, RFBR grants (S.I.D.), the German Israeli Foundation (J.H.S. and V.U.) is gratefully acknowledged.
PY - 2002/1/1
Y1 - 2002/1/1
N2 - The compressibility of composite fermion metallic state in two-dimensional electron system (2DES) was measured. A comparative study of the derivative of the chemical potential with respect to the carrier density at zero magnetic field was performed. The derivatives were calculated from the bottom of the ground subband. This derivative was inversely proportional to the 2DES compressibility. The contribution of electron-electron interaction was found to be identical for metallic states of electrons at zero magnetic field and of composite fermions at Landau level filling 1/2.
AB - The compressibility of composite fermion metallic state in two-dimensional electron system (2DES) was measured. A comparative study of the derivative of the chemical potential with respect to the carrier density at zero magnetic field was performed. The derivatives were calculated from the bottom of the ground subband. This derivative was inversely proportional to the 2DES compressibility. The contribution of electron-electron interaction was found to be identical for metallic states of electrons at zero magnetic field and of composite fermions at Landau level filling 1/2.
KW - Composite fermions
KW - Compressibility
KW - Fractional quantum Hall effect
UR - http://www.scopus.com/inward/record.url?scp=0035239558&partnerID=8YFLogxK
U2 - 10.1016/S1386-9477(01)00252-1
DO - 10.1016/S1386-9477(01)00252-1
M3 - Conference article
AN - SCOPUS:0035239558
VL - 12
SP - 97
EP - 100
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
SN - 1386-9477
IS - 1-4
T2 - 14th International Conference on the
Y2 - 30 July 2001 through 3 August 2001
ER -