Can I see the momentum distribution of electrons in a carbon nanotube using electron energy loss spectroscopy?

Question

EELS of single-walled carbon nanotubes has been done by several groups but nobody has studied spectroscopy of a nanotube carrying a current. If I do momentum-resolved EELS on a nanotube while I apply a current across it, look at the sigma-to-pi peak and compare the parallel and anti-parallel DOS, will I be able to see the effect of the current?

Answer 1

The momenta you are talking about are probably pretty small compared with the Fermi momentum, so I think it might be tough to resolve. But if you have access to the apparatus, why not give it a shot?

Answer 2

(On something so specialized, you are probably better off soliciting opinions from colleagues who know about conductivity in nanotubes rather than taking potluck at Yahoo Answers).

Are you talking about armchair or zigzag nanotubes?

I don't know much about how charge moves in nanotubes so take this with a grain of salt. Given that EELS depends on the scattering of electrons, and the effective cross sectional size of a free electron (in a charge balanced material) is much smaller than that of electron orbitals, I suspect the interaction will not change much whether or not a current is flowing (however the current induced magnetic field might make a difference.)

Answer 3

(On something so great, you're probable extra advantageous off soliciting opinions from colleagues who understand approximately conductivity in nanotubes fairly than taking potluck at Yahoo solutions). Are you speaking approximately armchair or zigzag nanotubes? i do no longer understand lots approximately how cost strikes in nanotubes so take this with a grain of salt. on condition that EELS relies upon on the scattering of electrons, and the functional flow sectional length of a loose electron (in a cost balanced textile) is lots smaller than that of electron orbitals, i think the interaction won't replace lots no rely if or no longer a modern-day is flowing (although if the present triggered magnetic field could make a distinction.)