Short-coherence length superconductivity in the Attractive Hubbard Model in three dimensions

Details Short-coherence length superconductivity in the Attractive Hubbard Model in three dimensions Short-coherence length superconductivity in the Attractive Hubbard Model in three dimensions

2001-10-17

arxiv.org/abs/cond-mat/0110356v1

Phys. Rev. B 71, 054508 (2005)

Physics

Condensed Matter

Superconductivity

4 pages, 5 figures

Scientific paper

10.1103/PhysRevB.71.054508

We study the normal state and the superconducting transition in the Attractive Hubbard Model in three dimensions, using self-consistent diagrammatics. Our results for the self-consistent $T$-matrix approximation are consistent with 3D-XY power-law critical scaling and finite-size scaling. This is in contrast to the exponential 2D-XY scaling the method was able to capture in our previous 2D calculation. We find the 3D transition temperature at quarter-filling and $U=-4t$ to be $T_c=0.207t$. The 3D critical regime is much narrower than in 2D and the ratio of the mean-field transition to $T_c$ is about 5 times smaller than in 2D. We also find that, for the parameters we consider, the pseudogap regime in 3D (as in 2D) coincides with the critical scaling regime.

Affiliated with

Also associated with

No associations

Rating

Short-coherence length superconductivity in the Attractive Hubbard Model in three dimensions 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 Short-coherence length superconductivity in the Attractive Hubbard Model in three dimensions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Short-coherence length superconductivity in the Attractive Hubbard Model in three dimensions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-283417