192 citations · 463 across the 9 of their papers we have counts for
9 papers
Integer Quantum Hall Effect in Graphite
H. Kempa, P. Esquinazi, Y. Kopelevich
We present Hall effect measurements on highly oriented pyrolytic graphite that indicate the occurrence of the integer quantum-Hall-effect. The evidence is given by the observation…
Higher harmonics of ac voltage response in narrow strips of YBa2Cu3O7 thin films: Evidence for strong thermal fluctuations
J. G. Ossandon, S. Sergeenkov, P. Esquinazi +1
We report on measurements of higher harmonics of the ac voltage response in strips of YBa2Cu3O7 thin films as a function of temperature, frequency and ac current amplitude. The thi…
Magnetothermal Conductivity of Highly Oriented Pyrolytic Graphite in the Quantum Limit
R. Ocaña, P. Esquinazi, H. Kempa +2
We report on the magnetic field (0TT) dependence of the longitudinal thermal conductivity of highly oriented pyrolytic graphite in the temperature range 5 K…
A Field-Effect-Transistor from Graphite: No Effect of Low Gate Fields
H. Kempa, P. Esquinazi
Inspired by the striking similarities between the metal-insulator transitions in graphite and Si-MOSFET's and the recent attention to charge doping in carbon-based materials, we ha…
Metal-Insulator-Metal Transitions, Superconductivity and Magnetism in Graphite
Y. Kopelevich, P. Esquinazi, J. H. S. Torres +4
This article reviews recent results of magnetotransport and magnetization measurements performed on highly oriented pyrolitic graphite (HOPG) and single crystalline Kish graphite s…
Reentrant Metallic Behavior of Graphite in the Quantum Limit
Y. Kopelevich, J. H. S. Torres, R. R. da Silva +3
Magnetotransport measurements performed on several well-characterized highly oriented pyrolitic graphite and single crystalline Kish graphite samples reveal a reentrant metallic be…