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Journal Article

Measurements of the compressibility of the composite fermion metallic state in a 2D electron system

MPS-Authors
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Dorozhkin,  S. I.
Research Group Solid State Nanophysics (Jurgen H. Smet), Max Planck Institute for Solid State Research, Max Planck Society;
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

/persons/resource/persons280531

Smet,  J. H.
Research Group Solid State Nanophysics (Jurgen H. Smet), Max Planck Institute for Solid State Research, Max Planck Society;
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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von Klitzing,  K.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Haug,  R. J.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Dorozhkin, S. I., Smet, J. H., von Klitzing, K., Umansky, V., Wegscheider, W., Haug, R. J., et al. (2002). Measurements of the compressibility of the composite fermion metallic state in a 2D electron system. Physica E, 12(1-4), 97-100.


Cite as: https://hdl.handle.net/21.11116/0000-000E-F331-8
Abstract
It is well-established that the electron-electron interaction
strongly affects the compressibility of a two-dimensional
electron system at zero magnetic field and even leads to the
negative sign of the compressibility. Surprisingly, we find
that its contribution is almost identical for the metallic
states of electrons at zero magnetic field and of composite
fermions at Landau level filling 1/2. (C) 2002 Elsevier Science
B.V. All rights reserved.