J. Phys. I France
Volume 1, Numéro 4, April 1991
Page(s) 449 - 453
DOI: 10.1051/jp1:1991145
J. Phys. I France 1 (1991) 449-453

Quantized Hall effect in the organic superconductor (TMTSF) $\mathsf{_{2}}$ClO $\mathsf{_{4}}$ revisited

W. Kang and D. Jérome

Laboratoire de Physique des Solides, Université Paris-Sud, 91405 Orsay, France

(Received 21 December 1990, accepted 11 February 1991)

We report Hall resistance measurements of the organic conductor (TMTSF) 2ClO 4 at low temperatures in fields up to 12 T. We have found that the Landau filling factor of the very stable semimetallic phase above 8 T is very likely to be n=1 instead of n=1/3 as inferred from previous investigations. A comparison between different samples shows that the possible current non-uniformity can strongly affect the experimental magnitude of the Hall resistance and thus leads to a wrong determination of the Landau filling factor.

© Les Editions de Physique 1991

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