Details
| Original language | English |
|---|---|
| Article number | 158301 |
| Pages (from-to) | 156401-1-156401-4 |
| Journal | Physical review letters |
| Volume | 92 |
| Issue number | 15 |
| Publication status | Published - 16 Apr 2004 |
Abstract
The activation gap δ of the fractional quantum Hall states was measured as a function of the perpendicular magnetic field. A linear dependence of δ on magnetic field was observed while approaching the spin-polarization transition. Composite fermions (CF) were introduced via the Chern-Simons gauge transformation on the many-electron wave function. The sharp linear magnetic field scaling of δ while approaching the spin-polarization transition yields a direct measurement of the CF 'g' factor alone.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical review letters, Vol. 92, No. 15, 158301, 16.04.2004, p. 156401-1-156401-4.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Direct measurement of the g factor of composite fermions
AU - Schulze-Wischeler, F.
AU - Mariani, E.
AU - Hohls, F.
AU - Haug, R. J.
N1 - Funding information: We acknowledge discussions with Bernhard Kramer. The sample was grown by D. Reuter and A. D. Wieck at the University of Bochum. We acknowledge financial support from BMBF, TMR, and DFG.
PY - 2004/4/16
Y1 - 2004/4/16
N2 - The activation gap δ of the fractional quantum Hall states was measured as a function of the perpendicular magnetic field. A linear dependence of δ on magnetic field was observed while approaching the spin-polarization transition. Composite fermions (CF) were introduced via the Chern-Simons gauge transformation on the many-electron wave function. The sharp linear magnetic field scaling of δ while approaching the spin-polarization transition yields a direct measurement of the CF 'g' factor alone.
AB - The activation gap δ of the fractional quantum Hall states was measured as a function of the perpendicular magnetic field. A linear dependence of δ on magnetic field was observed while approaching the spin-polarization transition. Composite fermions (CF) were introduced via the Chern-Simons gauge transformation on the many-electron wave function. The sharp linear magnetic field scaling of δ while approaching the spin-polarization transition yields a direct measurement of the CF 'g' factor alone.
UR - http://www.scopus.com/inward/record.url?scp=2542432549&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.92.156401
DO - 10.1103/PhysRevLett.92.156401
M3 - Article
AN - SCOPUS:2542432549
VL - 92
SP - 156401-1-156401-4
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 15
M1 - 158301
ER -