533 citations · 1.6k across the 19 of their papers we have counts for
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Signatures of Electron Fractionalization in Ultraquantum Bismuth
Kamran Behnia, Luis Balicas, Yakov Kopelevich
Because of the long Fermi wavelength of itinerant electrons, the quantum limit of elemental bismuth (unlike most metals) can be attained with a moderate magnetic field. The quantiz…
Charge Ordering in Amorphous WO Films
Yakov Kopelevich, Robson R. da Silva, Aline Rougier +1
We report on the observation of highly anisotropic viscous electronic conducting phase in amorphous WO films that occurs below a current (I)- and frequency (f)- dependent…
Oscillating Nernst-Ettingshausen effect in Bismuth across the quantum limit
Kamran Behnia, Marie-Aude Measson, Yakov Kopelevich
In elemental Bismuth, 10 atoms share a single itinerant electron. Therefore, a moderate magnetic field can confine electrons to the lowest Landau level. We report on the first…
Nernst effect in semi-metals: the meritorious heaviness of electrons
Kamran Behnia, Marie-Aude Measson, Yakov Kopelevich
We present a study of electric, thermal and thermoelectric transport in elemental Bismuth, which presents a Nernst coefficient much larger than what was found in correlated metals.…
First direct observation of Dirac fermions in graphite
S. Y. Zhou, G. -H. Gweon, J. Graf +7
Originating from relativistic quantum field theory, Dirac fermions have been recently applied to study various peculiar phenomena in condensed matter physics, including the novel q…
Ferromagnetic and superconducting instabilities in graphite
Y. Kopelevich, S. Moehlecke, R. R. da Silva
We review our recent work on magnetic properties of graphite and related carbon materials. The results demonstrate that a structural disorder, topological defects, as well as adsor…