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Old 06-20-2017, 05:38 PM
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Gambeir Gambeir is online now
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So I don't know if you're still out there Allen, but if so this is the paper on graphite and it's hidden superconductivity. Pretty thick stuff.

Invited review: Graphite and its hidden superconductivity by P. Esquinazi
https://arxiv.org/pdf/1312.4459.pdf

"We review experimental results, from transport to magnetization measurements, on different
graphite samples, from bulk oriented graphite, thin graphite films to transmission
electron microscope lamellae, that indicate the existence of granular superconductivity
at temperatures above 100 K. The accumulated evidence speaks for a localization of the
superconducting phase(s) at certain interfaces embedded in semiconducting crystalline
regions with Bernal stacking order."

Just posting for associated info. I realize you understand this already.

https://en.wikipedia.org/wiki/Bilayer_graphene
Emergent complex states: In 2014 researchers described the emergence of complex electronic states in bilayer graphene, notably the fractional quantum Hall effect and showed that this could be tuned by an electric field

Bilayer graphene showed the potential to realize a Bose–Einstein condensate of excitons.[17] Electrons and holes are fermions, but when they form an exciton, they become bosons, allowing Bose-Einstein condensation to occur. Exciton condensates in bilayer systems have been shown theoretically to carry a large current.

Bilayer graphene can be used to construct field effect transistors.[19]
In 2016 researchers announced the use of bilayer graphene to increase the output voltage of tunnel transistors (TT). They operate at a lower operating voltage range (150 mV) than silicon transistors (500 mV). Bilayer graphene's energy band is unlike that of most semiconductors in that the electrons around the edges form a (high density) van Hove singularity. This supplies sufficient electrons to increase current flow across the energy barrier. Bilayer graphene transistors use "electrical" rather than "chemical" doping.


https://en.wikipedia.org/wiki/Graphe...um_Hall_effect
Graphene has many unusual properties. It is about 200 times stronger than the strongest steel. It efficiently conducts heat and electricity and is nearly transparent.[3] Graphene shows a large and nonlinear diamagnetism,[4] greater than graphite and can be levitated by neodymium magnets.

For novices like myself I found this article, which is also downloadable as a pdf, is helpful.
From the Anomalous Hall Effect
to the Quantum Anomalous Hall Effect
AAPPS Bulletin
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Last edited by Gambeir; 06-20-2017 at 06:07 PM.
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