Charge Dynamics of Doped Holes in High Tc Cuprate Superconductors: A Clue from Optical Conductivity
Abstract
The charge dynamics in weakly hole doped high temperature superconductors is studied in terms of the accurate numerical solution to a model of a single hole interacting with a quantum lattice in an antiferromagnetic background, and accurate far-infrared ellipsometry measurements. The experimentally observed two electronic bands in the infrared spectrum can be identified in terms of the interplay between the electron correlation and electron-phonon interaction resolving the long standing mystery of the midinfrared band.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 2008
- DOI:
- 10.1103/PhysRevLett.100.166401
- arXiv:
- arXiv:0804.0479
- Bibcode:
- 2008PhRvL.100p6401M
- Keywords:
-
- 74.72.-h;
- 71.10.Fd;
- 71.38.-k;
- 75.50.Ee;
- Cuprate superconductors;
- Lattice fermion models;
- Polarons and electron-phonon interactions;
- Antiferromagnetics;
- Condensed Matter - Strongly Correlated Electrons;
- Condensed Matter - Statistical Mechanics
- E-Print:
- 4 pages, 4 figures. Accepted to Phys. Rev. Letters