Graphene's Hubbard U and nanotube's U • Physics Forums

ShaHan · 2019-10-06T13:03:24+00:00

PhysRevLett.106,236805 (2011) seems to state that Graphene has U=9.3eV and PRB 55-R11973 (1997) states that nanotube has U=u/N. However, it's not unusual for them to be hubbard U systems

Thread 'Stability of persistent currents in superconductors regardless of temperature'

From the BCS theory of superconductivity is well known that the superfluid density smoothly decreases with increasing temperature. Annihilated superfluid carriers become normal and lose their momenta on lattice atoms. So if we induce a persistent supercurrent in a ring below Tc and after that slowly increase the temperature, we must observe a decrease in the actual supercurrent, because the density of electron pairs and total supercurrent momentum decrease. However, this supercurrent...

View full post »

A Graphene's Hubbard U and nanotube's U

Thread 'Stability of persistent currents in superconductors regardless of temperature'

Similar threads

Hot Threads

A Power spectral density of a laser's frequency noise

A Confused about noise power spectral density measurement

A Stability of persistent currents in superconductors regardless of temperature

I The relationship between atoms and the Universe

I The relationship between the matter, energy, time and space of atoms

Recent Insights

Insights Thinking Outside The Box Versus Knowing What’s In The Box

Insights Why Entangled Photon-Polarization Qubits Violate Bell’s Inequality

Insights Quantum Entanglement is a Kinematic Fact, not a Dynamical Effect

Insights What Exactly is Dirac’s Delta Function? - Insight

Insights Relativator (Circular Slide-Rule): Simulated with Desmos - Insight

Insights Fixing Things Which Can Go Wrong With Complex Numbers