123 citations · 213 across the 6 of their papers we have counts for
6 papers
On the origin of the electric carrier concentration in graphite
A. Arndt, D. Spoddig, P. Esquinazi +2
We investigate the dependence of the electrical resistivity of nm thick single crystalline graphite samples on the defect concentration produced by proton irradiation at…
Ferromagnetic- and superconducting-like behavior of the electrical resistance of inhomogeneous graphite flake
J. Barzola-Quiquia, P. Esquinazi
We have measured the magnetic field and temperature dependence of the resistivity of several micrometers long and heterogeneously thick graphite sample. The magnetoresistance resul…
From Ohmic to Ballistic Transport in Oriented Graphite
N. García, P. Esquinazi, J. Barzola-Quiquia +2
In this work we show that for a quasi-2D system of size and thickness the resistance goes as , diverging logarithmically with the size. Measurements in hig…
A comparison of the magnetic properties of Proton- and Iron-implanted graphite
J. Barzola-Quiquia, R. Höhne, M. Rothermel +3
In this work we have investigated the changes of the magnetic properties of highly oriented pyrolytic graphite samples after irradiation either with protons…
Intrinsic Superconductivity at 25 K in Highly Oriented Pyrolytic Graphite
P. Esquinazi, N. García, J. Barzola-Quiquia +6
High resolution magnetoresistance data in highly oriented pyrolytic graphite thin samples manifest non-homogenous superconductivity with critical temperature K. These…
Experimental Evidence for Two-Dimensional Magnetic Order in Proton Bombarded Graphite
J. Barzola-Quiquia, P. Esquinazi, M. Rothermel +3
We have prepared magnetic graphite samples bombarded by protons at low temperatures and low fluences to attenuate the large thermal annealing produced during irradiation. An overal…