39 citations · 103 across the 9 of their papers we have counts for
9 papers
Experimental Study of the Intrinsic and Extrinsic Transport Properties of Graphite and Multigraphene Samples
J. Barzola-Quiquia, A. Ballestar, S. Dusari +1
This work deals with the intrinsic and extrinsic properties of the graphene layers inside the graphite structure, in particular the influence of defects and interfaces. We discuss…
Enhancement of the ferromagnetic order of graphite after sulphuric acid treatment
J. Barzola-Quiquia, W. Böhlmann, P. Esquinazi +5
We have studied the changes in the ferromagnetic behavior of graphite powder and graphite flakes after treatment with diluted sulphuric acid. We show that this kind of acid treatme…
Ballistic transport at room temperature in micrometer size multigraphene
S. Dusari, J. Barzola-Quiquia, P. Esquinazi +1
The intrinsic values of the carriers mobility and density of the graphene layers inside graphite, the well known structure built on these layers in the Bernal stacking configuratio…
Changes in the electrical transport of ZnO under visible light
S. Dusari, J. Barzola-Quiquia, P. Esquinazi +1
Complex impedance spectroscopy data in the frequency range 16Hz < f < 3 MHz at room temperature were acquired on pure ZnO single crystal and thin film. The measured impedance of th…
Searching for a magnetic proximity effect in magnetite-carbon structures
R. Höhne, M. Ziese, P. Esquinazi
In order to study a possible magnetic proximity effect in magnetite-carbon structures, we have performed magnetization measurements of graphite-magnetite composites with different…
Strain dependence of the acoustic properties of amorphous metals below 1K: Evidence for the interaction between tunneling states
R. Koenig, M. A. Ramos, I. Usherov-Marshak +3
We have conducted a thorough study of the acoustic properties between 10^-4 and 1 Kelvin for the amorphous metal Zr_x Cu_1-x (x=0.3 and x=0.4), by measuring the relative change of…