# Low-energy interband transitions in YBa2Cu3O7.

@article{Mazin1992LowenergyIT, title={Low-energy interband transitions in YBa2Cu3O7.}, author={Mazin and Rashkeev and Liechtenstein and Andersen}, journal={Physical review. B, Condensed matter}, year={1992}, volume={46 17}, pages={ 11232-11235 } }

Based on a numerically highly accurate local-density-approximation (LDA) calculation, we present a k\ensuremath{\cdot}p analysis of the interband optical absorption in ${\mathrm{YBa}}_{2}$${\mathrm{Cu}}_{3}$${\mathrm{O}}_{7}$ in the infrared region (\ensuremath{\Elzxh}\ensuremath{\omega}0.1 eV). It is shown that the LDA band structure gives rise to three infrared interband transitions: A sharp peak for the in-plane (E\ensuremath{\perp}c) polarization at about 320 ${\mathrm{cm}}^{\mathrm… CONTINUE READING