Magnetization of a strongly interacting two-dimensional electron system in perpendicular magnetic fields

Details Magnetization of a strongly interacting two-dimensional electron system in perpendicular magnetic fields Magnetization of a strongly interacting two-dimensional electron system in perpendicular magnetic fields

2005-03-06

arxiv.org/abs/cond-mat/0503123v2

Phys. Rev. Lett. 96, 046409 (2006)

Physics

Condensed Matter

Strongly Correlated Electrons

As published

Scientific paper

10.1103/PhysRevLett.96.046409

We measure the thermodynamic magnetization of a low-disordered, strongly correlated two-dimensional electron system in silicon in perpendicular magnetic fields. A new, parameter-free method is used to directly determine the spectrum characteristics (Lande g-factor and the cyclotron mass) when the Fermi level lies outside the spectral gaps and the inter-level interactions between quasiparticles are avoided. Intra-level interactions are found to strongly modify the magnetization, without affecting the determined g* and m*.

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