Ab-initio formulation of the 4-point conductance of interacting electronic systems

Details Ab-initio formulation of the 4-point conductance of interacting electronic systems Ab-initio formulation of the 4-point conductance of interacting electronic systems

2007-05-10

arxiv.org/abs/0705.1568v2

Phys. Rev. B 76, 125433 (2007)

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevB.76.125433

We derive an expression for the 4-point conductance of a general quantum junction in terms of the density response function. Our formulation allows us to show that the 4-point conductance of an interacting electronic system possessing either a geometrical constriction and/or an opaque barrier becomes identical to the macroscopically measurable 2-point conductance. Within time-dependent density-functional theory the formulation leads to a direct identification of the functional form of the exchange-correlation kernel that is important for the conductance. We demonstrate the practical implementationof our formula for a metal-vacuum-metal interface.

Affiliated with

Also associated with

No associations

Rating

Ab-initio formulation of the 4-point conductance of interacting electronic systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ab-initio formulation of the 4-point conductance of interacting electronic systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ab-initio formulation of the 4-point conductance of interacting electronic systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-410957