Searching for the fractional quantum Hall effect in graphite

Searching for the fractional quantum Hall effect in graphite

Measurements of basal plane longitudinal rho(b)(B) and Hall rho(H)(B) resistivities were performed on highly oriented pyrolytic graphite samples in a pulsed magnetic field up to B=50 T applied perpendicular to graphene planes, and temperatures 1.5 K34 T (T=1.8 K), presumably associated with the fiel...

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Veröffentlicht in:Physical review letters 2009-09, Vol.103 (11), p.116802-116802, Article 116802
Hauptverfasser: Kopelevich, Y, Raquet, B, Goiran, M, Escoffier, W, da Silva, R R, Pantoja, J C Medina, Luk'yanchuk, I A, Sinchenko, A, Monceau, P
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Condensed Matter
Physics
Strongly Correlated Electrons
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container_end_page 116802
container_issue 11
container_start_page 116802
container_title Physical review letters
container_volume 103
creator Kopelevich, Y
Raquet, B
Goiran, M
Escoffier, W
da Silva, R R
Pantoja, J C Medina
Luk'yanchuk, I A
Sinchenko, A
Monceau, P
description Measurements of basal plane longitudinal rho(b)(B) and Hall rho(H)(B) resistivities were performed on highly oriented pyrolytic graphite samples in a pulsed magnetic field up to B=50 T applied perpendicular to graphene planes, and temperatures 1.5 K34 T (T=1.8 K), presumably associated with the field-driven charge density wave or Wigner crystallization transition. In addition, well-defined plateaus in rho(H)(B) were detected in the ultraquantum limit revealing possible signatures of the fractional quantum Hall effect in graphite.
doi_str_mv 10.1103/physrevlett.103.116802
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Physics
Strongly Correlated Electrons
title Searching for the fractional quantum Hall effect in graphite
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