3 citations · 9 across the 9 of their papers we have counts for
9 papers
Fibonacci sequence of twist angles in superconducting multi-layer graphene and hydrogenated graphitic fibers
Nadina Gheorghiu, Charles R. Ebbing, George Y. Panasyuk +1
A range of twist angles between adjacent surfaces/volumes are intrinsic to natural graphite or artificially design in multi-layer graphene. In addition, stacking faults can be crea…
Adjudicating Conduction Mechanisms in High Performance Carbon Nanotube Fibers
John Bulmer, Chris Kovacs, Thomas Bullard +15
The performance of carbon nanotube (CNT) cables, a contender for copper-wire replacement, is tied to its metallic and semi-conducting-like conductivity responses with temperature;…
Magneto-structural phase transitions and two-dimensional spin waves in graphite
Nadina Gheorghiu, Charles R. Ebbing, Timothy J. Haugan
We have previously found experimental evidence for several quantum phenomena in oxygen-ion implanted of hydrogenated graphite: ferromagnetism, antiferromagnetism, paramagentism, tr…
Flat-band energy analysis of the temperature-dependent superconducting gap for hydrogenated graphite fibers found from nonlocal electrical conductance experimental data
Nadina Gheorghiu, Charles R. Ebbing, Timothy J. Haugan
Experimental evidence of novel phenomena in hydrogenated graphite fibers is found. An indirect excitonic mechanism is likely leading to a SC state below the temperature Tc = 50 K,…
Magnetism and Superconductivity in Hydrogenated Graphite Foils
Nadina Gheorghiu, Charles R. Ebbing, Timothy J. Haugan
Unique to certain unconventional superconductors is the coexistence of magnetism and superconductivity. We have previously found ferromagnetism and superconductivity in hydrogenate…
Superconducting-like and magnetic transitions in oxygen-implanted diamond-like and amorphous carbon films, and in highly oriented pyrolytic graphite
Nadina Gheorghiu, Charles R. Ebbing, John P. Murphy +2
In our previously published work, we have reported colossal magnetoresistance, Andreev oscillations, ferromagnetism, and granular superconductivity in oxygen-implanted carbon fiber…
Boron Content and the Superconducting Critical Temperature of Carbon-Based Materials
Nadina Gheorghiu, Charles R. Ebbing, Timothy J. Haugan
In this paper, we present results on magnetization properties of boron nitride-carbon (BN-C) and boron carbide-carbon (B4C-C) granular mixtures. The temperature-dependent magnetiza…
Electric-field induced strange metal states and possible high-temperature superconductivity in hydrogenated graphitic fibers
Nadina Gheorghiu, Charles R. Ebbing, Timothy J. Haugan
In this work, we have studied the effects from increasing the strength of the applied electric field on the charge transport of hydrogenated graphitic fibers. Resistivity measureme…
Superconductivity in Hydrogenated Graphites
Nadina Gheorghiu, Charles R. Ebbing, Timothy J. Haugan
We report transport and magnetization measurements on graphitic materials that have been hydrogenated after being treated with octane. The temperature-dependent electrical resistiv…