Abstract
We investigated the doping-dependent evolution of the charge-orbital ordering (CO-OO) phase using optical spectroscopy of a series of single-layer manganites, ( and 1) and . We found that the electronic response of the CO-OO phase changes asymmetrically with respect to the addition or removal of electrons from . Especially, low-energy optical spectra depend strongly on the modulation vector of striped phase in a higher doping region . This finding highlights the role of the nanoscale structure of ordering in the electronic property of the striped phase in the layered manganite.
- Received 29 January 2007
DOI:https://doi.org/10.1103/PhysRevB.75.144407
©2007 American Physical Society