Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2009-02-05
Phys. Rev. B 79, 205314 (2009)
Physics
Condensed Matter
Strongly Correlated Electrons
Scientific paper
10.1103/PhysRevB.79.205314
We find that the polarization field, B_chi, obtained by scaling the weak-parallel-field magnetoresistance at different electron densities in a dilute two-dimensional electron system in (111) silicon, corresponds to the spin susceptibility that grows strongly at low densities. The polarization field, B_sat, determined by resistance saturation, turns out to deviate to lower values than B_chi with increasing electron density, which can be explained by filling of the upper electron subbands in the fully spin-polarized regime.
Dolgopolov V. T.
Goiran Michel
Kapustin A. A.
Kvon Ze Don
Rakoto* H.
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