Dynamic Jahn-Teller Mechanism of Superconductivity in MgB$_2$

Details Dynamic Jahn-Teller Mechanism of Superconductivity in MgB$_2$ Dynamic Jahn-Teller Mechanism of Superconductivity in MgB$_2$

2002-03-09

arxiv.org/abs/cond-mat/0203204v1

Physics

Condensed Matter

Superconductivity

Scientific paper

We propose a novel mechanism of superconductivity in MgB$_2$ based on the dynamic electronic structure of the $p\sigma$-orbitals coupled with $e_{2g}$ phonons. A nonconventional superconducting state is found to arise frome lectron-phonon interactions in the presence of additional pairing channels made available by the dynamic Jahn-Teller effects. A partially broken pseudo-spin symmetry in this Jahn-Teller system, together with two-phonon exchange pairing, naturally gives rise to two distinct gaps both of which are basically isotropic in the ($k_x$, $k_y$) space. Important experimental observations including high $T_c$ and the anomalous specific heat are explained using this theory.

Affiliated with

Also associated with

No associations

Rating

Dynamic Jahn-Teller Mechanism of Superconductivity in MgB$_2$ 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 Dynamic Jahn-Teller Mechanism of Superconductivity in MgB$_2$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic Jahn-Teller Mechanism of Superconductivity in MgB$_2$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-186814