Abstract
Calculations of the pairing interaction in multiband models of the Fe superconductors show that it is attractive in both the (-wave) and (-wave) channels. This raises the possibility that these materials may have collective excitonic modes. Here, assuming an -wave ground state, we investigate the -wave collective excitonic mode and its coupling to the Raman scattering.
- Received 28 August 2009
DOI:https://doi.org/10.1103/PhysRevB.80.140512
©2009 American Physical Society